Commit graph

159,952 commits

Author SHA1 Message Date
Linus Torvalds
28e43197c4 20 hotfixes, 14 of which are cc:stable.
Three affect DAMON.  Lorenzo's five-patch series to address the
 mmap_region error handling is here also.
 
 Apart from that, various singletons.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZzBVmAAKCRDdBJ7gKXxA
 ju42AQD0EEnzW+zFyI+E7x5FwCmLL6ofmzM8Sw9YrKjaeShdZgEAhcyS2Rc/AaJq
 Uty2ZvVMDF2a9p9gqHfKKARBXEbN2w0=
 =n+lO
 -----END PGP SIGNATURE-----

Merge tag 'mm-hotfixes-stable-2024-11-09-22-40' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "20 hotfixes, 14 of which are cc:stable.

  Three affect DAMON. Lorenzo's five-patch series to address the
  mmap_region error handling is here also.

  Apart from that, various singletons"

* tag 'mm-hotfixes-stable-2024-11-09-22-40' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mailmap: add entry for Thorsten Blum
  ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()
  signal: restore the override_rlimit logic
  fs/proc: fix compile warning about variable 'vmcore_mmap_ops'
  ucounts: fix counter leak in inc_rlimit_get_ucounts()
  selftests: hugetlb_dio: check for initial conditions to skip in the start
  mm: fix docs for the kernel parameter ``thp_anon=``
  mm/damon/core: avoid overflow in damon_feed_loop_next_input()
  mm/damon/core: handle zero schemes apply interval
  mm/damon/core: handle zero {aggregation,ops_update} intervals
  mm/mlock: set the correct prev on failure
  objpool: fix to make percpu slot allocation more robust
  mm/page_alloc: keep track of free highatomic
  mm: resolve faulty mmap_region() error path behaviour
  mm: refactor arch_calc_vm_flag_bits() and arm64 MTE handling
  mm: refactor map_deny_write_exec()
  mm: unconditionally close VMAs on error
  mm: avoid unsafe VMA hook invocation when error arises on mmap hook
  mm/thp: fix deferred split unqueue naming and locking
  mm/thp: fix deferred split queue not partially_mapped
2024-11-10 09:04:27 -08:00
Linus Torvalds
c7a8f2a504 ACPI fix for 6.12-rc7
Fix the ACPI processor driver initialization ordering after recent
 changes to avoid calling init_freq_invariance_cppc() too early on
 AMD platforms (Mario Limonciello).
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmcuaekSHHJqd0Byand5
 c29ja2kubmV0AAoJEILEb/54YlRxIVIP/iv/z8Y6AB9Xnl+v6YEiQ6WiEyL171Vp
 NUhNj+oDK4C3Gt6jTZ/PUkAr+1OwDx5CjOpK6o0fpIME8VLNglxo9OwHHlGpxAqH
 1S1qbS/B9Zl7Cv+fb4q9Yuf6k0qld3lsKNsc5IR2//A1vz57BZ7iVOysFcBH92cM
 j+Ahs07d0mS8P+D5SaOZMV1j4m0MShUE36NM3KQOn70pwscAYRcYI7pIeIR8TD5c
 j1AmtYXLICwibc+OyvRYn+1cTFjMLD8UwuQsTD1192cocBngRT+azQlzsuSrSOHb
 uJDxFAEumVZ8WUZFYEiJCpCZblYst6cviuNU98UM3L242sbUXTssqiiZQPDshX1K
 yNKfN4A0p+PlUGN5eF1K6kbCuEVU0M5TQLM41EsTJULlOn7D58k+pKE94Cmse0aW
 nGyYjjmDmJZc9lGPxgeZCG4Gh7YkK1/PYvK29Qk1F8HheDwzgxI67T3+t7vqPt8a
 MnmqDUi0nzKe44YyG0vp61KN2azHQIwOfJopaZJJCdCnxciFjr/KD7PjEQLj6aVN
 ANzX2IrRb+kQnU8m92v8R1mbtElvEvY354ruw5Huy/SxzX6/V9EtcpHwKEBgFUml
 IsKfxipjdnU2c1holNIPlyIbSH7EzCvFnhrweMx24I8kZJV5BLDyonaNdnqMkgZu
 tM73ODGIwElh
 =VPlW
 -----END PGP SIGNATURE-----

Merge tag 'acpi-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Fix the ACPI processor driver initialization ordering after recent
  changes to avoid calling init_freq_invariance_cppc() too early on AMD
  platforms (Mario Limonciello)"

* tag 'acpi-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: processor: Move arch_init_invariance_cppc() call later
2024-11-08 13:08:23 -10:00
Linus Torvalds
9ea7edac83 arm64 fixes for -rc7
- Fix handling of SVE traps from userspace on preemptible kernels when
   converting the saved floating point state into SVE state.
 
 - Remove broken support for the SMCCCv1.3 "SVE discard hint"
   optimisation.
 
 - Disable SME support, as the current support code suffers from numerous
   issues around signal delivery, ptrace access and context-switch which
   can lead to user-visible corruption of the register state.
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAmcsr4EQHHdpbGxAa2Vy
 bmVsLm9yZwAKCRC3rHDchMFjNPPiCACg3kva9wv7Rs1BQa+dJKiTQ7e5rcaEQ2dK
 3v86vxvyl/UJIx/AmGS3ydKlmBwQYOHlBGHH7Iw3XphZK6YQCsgbvmTHiE7UoimZ
 IgWod1HRh8RN5sPctkgS+fg9ebD/BPQ/RW6HPUp6ZBwb4hxmaYW236FGWppienOn
 W1hO8gz64uXig+UCSjxdSDnOPhPwvrw05DVkAdMF2HFxUgAr96T+BD+Bpcco+r+k
 0cqlaCzsRgf9OKGPeFxTrfO1t02CsVvjfzEQMaj0Jd0f+2XNFlrGsMEZw3PCoiXv
 zizjflLoVTzc0AAZWdFJXUPlRshmRFJj/R2HuXvb1m9shqU3NieO
 =Z7Ls
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Here is a (hopefully) final round of arm64 fixes for 6.12 that address
  some user-visible floating point register corruption. Both of the
  Marks have been working on this for a couple of weeks and we've ended
  up in a position where SVE is solid but SME still has enough pending
  issues that the most pragmatic solution for the release and stable
  backports is to disable the feature. Yes, it's a shame, but the
  hardware is rare as hen's teeth at the moment and we're better off
  getting back to a known good state before fixing it all properly.
  We're also improving the selftests for 6.13 to help avoid merging
  broken code in the future.

  Anyway, the good news is that we're removing a lot more code than
  we're adding.

  Summary:

   - Fix handling of SVE traps from userspace on preemptible kernels
     when converting the saved floating point state into SVE state.

   - Remove broken support for the SMCCCv1.3 "SVE discard hint"
     optimisation.

   - Disable SME support, as the current support code suffers from
     numerous issues around signal delivery, ptrace access and
     context-switch which can lead to user-visible corruption of the
     register state"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Kconfig: Make SME depend on BROKEN for now
  arm64: smccc: Remove broken support for SMCCCv1.3 SVE discard hint
  arm64/sve: Discard stale CPU state when handling SVE traps
2024-11-08 07:19:58 -10:00
Roman Gushchin
9e05e5c7ee signal: restore the override_rlimit logic
Prior to commit d646969055 ("Reimplement RLIMIT_SIGPENDING on top of
ucounts") UCOUNT_RLIMIT_SIGPENDING rlimit was not enforced for a class of
signals.  However now it's enforced unconditionally, even if
override_rlimit is set.  This behavior change caused production issues.  

For example, if the limit is reached and a process receives a SIGSEGV
signal, sigqueue_alloc fails to allocate the necessary resources for the
signal delivery, preventing the signal from being delivered with siginfo. 
This prevents the process from correctly identifying the fault address and
handling the error.  From the user-space perspective, applications are
unaware that the limit has been reached and that the siginfo is
effectively 'corrupted'.  This can lead to unpredictable behavior and
crashes, as we observed with java applications.

Fix this by passing override_rlimit into inc_rlimit_get_ucounts() and skip
the comparison to max there if override_rlimit is set.  This effectively
restores the old behavior.

Link: https://lkml.kernel.org/r/20241104195419.3962584-1-roman.gushchin@linux.dev
Fixes: d646969055 ("Reimplement RLIMIT_SIGPENDING on top of ucounts")
Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev>
Co-developed-by: Andrei Vagin <avagin@google.com>
Signed-off-by: Andrei Vagin <avagin@google.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Alexey Gladkov <legion@kernel.org>
Cc: Kees Cook <kees@kernel.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-11-07 14:14:59 -08:00
Yu Zhao
c928807f6f mm/page_alloc: keep track of free highatomic
OOM kills due to vastly overestimated free highatomic reserves were
observed:

  ... invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0 ...
  Node 0 Normal free:1482936kB boost:0kB min:410416kB low:739404kB high:1068392kB reserved_highatomic:1073152KB ...
  Node 0 Normal: 1292*4kB (ME) 1920*8kB (E) 383*16kB (UE) 220*32kB (ME) 340*64kB (E) 2155*128kB (UE) 3243*256kB (UE) 615*512kB (U) 1*1024kB (M) 0*2048kB 0*4096kB = 1477408kB

The second line above shows that the OOM kill was due to the following
condition:

  free (1482936kB) - reserved_highatomic (1073152kB) = 409784KB < min (410416kB)

And the third line shows there were no free pages in any
MIGRATE_HIGHATOMIC pageblocks, which otherwise would show up as type 'H'. 
Therefore __zone_watermark_unusable_free() underestimated the usable free
memory by over 1GB, which resulted in the unnecessary OOM kill above.

The comments in __zone_watermark_unusable_free() warns about the potential
risk, i.e.,

  If the caller does not have rights to reserves below the min
  watermark then subtract the high-atomic reserves. This will
  over-estimate the size of the atomic reserve but it avoids a search.

However, it is possible to keep track of free pages in reserved highatomic
pageblocks with a new per-zone counter nr_free_highatomic protected by the
zone lock, to avoid a search when calculating the usable free memory.  And
the cost would be minimal, i.e., simple arithmetics in the highatomic
alloc/free/move paths.

Note that since nr_free_highatomic can be relatively small, using a
per-cpu counter might cause too much drift and defeat its purpose, in
addition to the extra memory overhead.

Dependson e0932b6c1f ("mm: page_alloc: consolidate free page accounting") - see [1]

[akpm@linux-foundation.org: s/if/else if/, per Johannes, stealth whitespace tweak]
Link: https://lkml.kernel.org/r/20241028182653.3420139-1-yuzhao@google.com
Link: https://lkml.kernel.org/r/0d0ddb33-fcdc-43e2-801f-0c1df2031afb@suse.cz [1]
Fixes: 0aaa29a56e ("mm, page_alloc: reserve pageblocks for high-order atomic allocations on demand")
Signed-off-by: Yu Zhao <yuzhao@google.com>
Reported-by: Link Lin <linkl@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-11-07 14:14:58 -08:00
Linus Torvalds
bfc64d9b7e Including fixes from can and netfilter.
Things are slowing down quite a bit, mostly driver fixes here.
 No known ongoing investigations.
 
 Current release - new code bugs:
 
  - eth: ti: am65-cpsw:
    - fix multi queue Rx on J7
    - fix warning in am65_cpsw_nuss_remove_rx_chns()
 
 Previous releases - regressions:
 
  - mptcp: do not require admin perm to list endpoints, got missed
    in a refactoring
 
  - mptcp: use sock_kfree_s instead of kfree
 
 Previous releases - always broken:
 
  - sctp: properly validate chunk size in sctp_sf_ootb() fix OOB access
 
  - virtio_net: make RSS interact properly with queue number
 
  - can: mcp251xfd: mcp251xfd_get_tef_len(): fix length calculation
 
  - can: mcp251xfd: mcp251xfd_ring_alloc(): fix coalescing configuration
    when switching CAN modes
 
 Misc:
 
  - revert earlier hns3 fixes, they were ignoring IOMMU abstractions
    and need to be reworked
 
  - can: {cc770,sja1000}_isa: allow building on x86_64
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmctJTUACgkQMUZtbf5S
 Irt2YQ/+LTGPXcn+KMRgDnocqoNbu9qrpFhGVO9iWCzG9iOni9NKIBqpBnUqth5S
 m7GlaR1sl/6f4Fdb1jEXdC3AmzrVK6EDV53k9ec73U0O5U/w+WMGILEfKMNbFWKh
 PYujJqTJHbwyOtyFNQPC9BMJexvKgJl7CQqztABcJtL6mPZqTFwMoL24JT6vfGlb
 vZYiyQmxezmnQq4Z/d4g3E/Qf6WO5MwGnKZMfbSJ5EnmFERE7IZwkZQcz4WEOwU8
 DhlXEiO0A9u26J4DMUvNNWIzcQB9jE2J03S/kYcsBZZjYNYZYveIx6WuRmFJPYv8
 GDeNXa/6m7rj5kbYQNm594X04pnkMsCQhuPPpLbvTK+EJjKmy1P2ulWa8REnjBdL
 ZwMJ1KLXS6iZYKnZbPjTipPQEkn6D5Vrrso5QHPnPCoZuJsMvtfCVGOWQ/LST+7D
 Fpfdo9XUZ49MKfGVTYLtOkhJoyLYbfT5lt4Y/2SFS2HyOQtNC8s8h1KZxxB+44uW
 N+bTO0U8BLtsTC/c9Hjc4K4m594mi0NSMMZ610jf4J60FrtrznKr7PACJ4siNRLj
 3Sf5Clb0MGltolzrGsStksEXYm8u7tWPvQUGGy/HNPTnT7qwkX78ywpB4P4VtCym
 UDfmoWNMyWi/HJ6wlCzUIGXIolLN4cf3QpvqV2U5AHLDtynV8Ig=
 =iWv1
 -----END PGP SIGNATURE-----

Merge tag 'net-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from can and netfilter.

  Things are slowing down quite a bit, mostly driver fixes here. No
  known ongoing investigations.

  Current release - new code bugs:

   - eth: ti: am65-cpsw:
      - fix multi queue Rx on J7
      - fix warning in am65_cpsw_nuss_remove_rx_chns()

  Previous releases - regressions:

   - mptcp: do not require admin perm to list endpoints, got missed in a
     refactoring

   - mptcp: use sock_kfree_s instead of kfree

  Previous releases - always broken:

   - sctp: properly validate chunk size in sctp_sf_ootb() fix OOB access

   - virtio_net: make RSS interact properly with queue number

   - can: mcp251xfd: mcp251xfd_get_tef_len(): fix length calculation

   - can: mcp251xfd: mcp251xfd_ring_alloc(): fix coalescing
     configuration when switching CAN modes

  Misc:

   - revert earlier hns3 fixes, they were ignoring IOMMU abstractions
     and need to be reworked

   - can: {cc770,sja1000}_isa: allow building on x86_64"

* tag 'net-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (42 commits)
  drivers: net: ionic: add missed debugfs cleanup to ionic_probe() error path
  net/smc: do not leave a dangling sk pointer in __smc_create()
  rxrpc: Fix missing locking causing hanging calls
  net/smc: Fix lookup of netdev by using ib_device_get_netdev()
  net: arc: rockchip: fix emac mdio node support
  net: arc: fix the device for dma_map_single/dma_unmap_single
  virtio_net: Update rss when set queue
  virtio_net: Sync rss config to device when virtnet_probe
  virtio_net: Add hash_key_length check
  virtio_net: Support dynamic rss indirection table size
  netfilter: nf_tables: wait for rcu grace period on net_device removal
  net: stmmac: Fix unbalanced IRQ wake disable warning on single irq case
  net: vertexcom: mse102x: Fix possible double free of TX skb
  mptcp: use sock_kfree_s instead of kfree
  mptcp: no admin perm to list endpoints
  net: phy: ti: add PHY_RST_AFTER_CLK_EN flag
  net: ethernet: ti: am65-cpsw: fix warning in am65_cpsw_nuss_remove_rx_chns()
  net: ethernet: ti: am65-cpsw: Fix multi queue Rx on J7
  net: hns3: fix kernel crash when uninstalling driver
  Revert "Merge branch 'there-are-some-bugfix-for-the-hns3-ethernet-driver'"
  ...
2024-11-07 11:07:57 -10:00
David Howells
fc9de52de3 rxrpc: Fix missing locking causing hanging calls
If a call gets aborted (e.g. because kafs saw a signal) between it being
queued for connection and the I/O thread picking up the call, the abort
will be prioritised over the connection and it will be removed from
local->new_client_calls by rxrpc_disconnect_client_call() without a lock
being held.  This may cause other calls on the list to disappear if a race
occurs.

Fix this by taking the client_call_lock when removing a call from whatever
list its ->wait_link happens to be on.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-afs@lists.infradead.org
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Fixes: 9d35d880e0 ("rxrpc: Move client call connection to the I/O thread")
Link: https://patch.msgid.link/726660.1730898202@warthog.procyon.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-07 11:30:34 -08:00
Jakub Kicinski
013d2c5c6b netfilter pull request 24-11-07
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEjF9xRqF1emXiQiqU1w0aZmrPKyEFAmcspM0ACgkQ1w0aZmrP
 KyHmNxAAhg51RTnHW+Oy3GNwSKqSWjxa5lhdjq4UItqghLSHmFZDXj9fNJnIB0LN
 krrjMgYM8d64alpQo/puoZFl2A2BeOiEo49K4lmmqIgXOGr2LWg3zdpU0/7e91V3
 Z9cQFJj0X9WUJvis7GY/uXmtjOD1KelPC73L/CudQbXw28+iCTun4bfSVZlT+SuA
 c1CdHsblZUlfBk3X2r/cnueDaIveO9WQKi46Zp1cWUK0XTTI+l5G9hlnNqnMvGdC
 S4BvDaRRp1GLLn3SKiDraqgnmpIGHTjDcgPjh1XyfWyXHQDxFdnj2u3SS3QWnTlb
 CyKGgS+fMvxpMyrtzRq8KahvtjkPM7tQw1iYv2jFyuNL1oZp/xpZJRNQDsPi59UP
 BGX7ZMQ7aScKSkBPRDu38G3nKF/YsXC0OqbL4rdpR7O/hrwjHm8A3dXEo/KRwLmI
 yhlbOaJUJqgUza9WZGBwb4sraqdl/ike2D650ZvHkb+ormWtqQYLZnEZQ2ko1XZ3
 IzkWJOxRnSzXs5Og8P8tXmvxH8gGRSNBrpOKQ3Btdcr9z/oKzRQi8RxFz/XCGIUs
 05fbwYy9LfR90dJGAGyvIwXmhRBOAbH1H8lcGP+5mk/NfHtMwxlOxmrvt5+i/i1V
 CXJU7GT4gV1ExgtAvev7mQK16n6dKYNMXipQ8XANrkG1KMCReZg=
 =0P8E
 -----END PGP SIGNATURE-----

Merge tag 'nf-24-11-07' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf

Pablo Neira Ayuso says:

====================
Netfilter fix for net

The following series contains a Netfilter fix:

1) Wait for rcu grace period after netdevice removal is reported via event.

* tag 'nf-24-11-07' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: nf_tables: wait for rcu grace period on net_device removal
====================

Link: https://patch.msgid.link/20241107113212.116634-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-07 08:16:42 -08:00
Pablo Neira Ayuso
c03d278fdf netfilter: nf_tables: wait for rcu grace period on net_device removal
8c873e2199 ("netfilter: core: free hooks with call_rcu") removed
synchronize_net() call when unregistering basechain hook, however,
net_device removal event handler for the NFPROTO_NETDEV was not updated
to wait for RCU grace period.

Note that 835b803377 ("netfilter: nf_tables_netdev: unregister hooks
on net_device removal") does not remove basechain rules on device
removal, I was hinted to remove rules on net_device removal later, see
5ebe0b0eec ("netfilter: nf_tables: destroy basechain and rules on
netdevice removal").

Although NETDEV_UNREGISTER event is guaranteed to be handled after
synchronize_net() call, this path needs to wait for rcu grace period via
rcu callback to release basechain hooks if netns is alive because an
ongoing netlink dump could be in progress (sockets hold a reference on
the netns).

Note that nf_tables_pre_exit_net() unregisters and releases basechain
hooks but it is possible to see NETDEV_UNREGISTER at a later stage in
the netns exit path, eg. veth peer device in another netns:

 cleanup_net()
  default_device_exit_batch()
   unregister_netdevice_many_notify()
    notifier_call_chain()
     nf_tables_netdev_event()
      __nft_release_basechain()

In this particular case, same rule of thumb applies: if netns is alive,
then wait for rcu grace period because netlink dump in the other netns
could be in progress. Otherwise, if the other netns is going away then
no netlink dump can be in progress and basechain hooks can be released
inmediately.

While at it, turn WARN_ON() into WARN_ON_ONCE() for the basechain
validation, which should not ever happen.

Fixes: 835b803377 ("netfilter: nf_tables_netdev: unregister hooks on net_device removal")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2024-11-07 12:28:47 +01:00
Mark Rutland
8c462d5648 arm64: smccc: Remove broken support for SMCCCv1.3 SVE discard hint
SMCCCv1.3 added a hint bit which callers can set in an SMCCC function ID
(AKA "FID") to indicate that it is acceptable for the SMCCC
implementation to discard SVE and/or SME state over a specific SMCCC
call. The kernel support for using this hint is broken and SMCCC calls
may clobber the SVE and/or SME state of arbitrary tasks, though FPSIMD
state is unaffected.

The kernel support is intended to use the hint when there is no SVE or
SME state to save, and to do this it checks whether TIF_FOREIGN_FPSTATE
is set or TIF_SVE is clear in assembly code:

|        ldr     <flags>, [<current_task>, #TSK_TI_FLAGS]
|        tbnz    <flags>, #TIF_FOREIGN_FPSTATE, 1f   // Any live FP state?
|        tbnz    <flags>, #TIF_SVE, 2f               // Does that state include SVE?
|
| 1:     orr     <fid>, <fid>, ARM_SMCCC_1_3_SVE_HINT
| 2:
|        << SMCCC call using FID >>

This is not safe as-is:

(1) SMCCC calls can be made in a preemptible context and preemption can
    result in TIF_FOREIGN_FPSTATE being set or cleared at arbitrary
    points in time. Thus checking for TIF_FOREIGN_FPSTATE provides no
    guarantee.

(2) TIF_FOREIGN_FPSTATE only indicates that the live FP/SVE/SME state in
    the CPU does not belong to the current task, and does not indicate
    that clobbering this state is acceptable.

    When the live CPU state is clobbered it is necessary to update
    fpsimd_last_state.st to ensure that a subsequent context switch will
    reload FP/SVE/SME state from memory rather than consuming the
    clobbered state. This and the SMCCC call itself must happen in a
    critical section with preemption disabled to avoid races.

(3) Live SVE/SME state can exist with TIF_SVE clear (e.g. with only
    TIF_SME set), and checking TIF_SVE alone is insufficient.

Remove the broken support for the SMCCCv1.3 SVE saving hint. This is
effectively a revert of commits:

* cfa7ff959a ("arm64: smccc: Support SMCCC v1.3 SVE register saving hint")
* a7c3acca53 ("arm64: smccc: Save lr before calling __arm_smccc_sve_check()")

... leaving behind the ARM_SMCCC_VERSION_1_3 and ARM_SMCCC_1_3_SVE_HINT
definitions, since these are simply definitions from the SMCCC
specification, and the latter is used in KVM via ARM_SMCCC_CALL_HINTS.

If we want to bring this back in future, we'll probably want to handle
this logic in C where we can use all the usual FPSIMD/SVE/SME helper
functions, and that'll likely require some rework of the SMCCC code
and/or its callers.

Fixes: cfa7ff959a ("arm64: smccc: Support SMCCC v1.3 SVE register saving hint")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: stable@vger.kernel.org
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241106160448.2712997-1-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2024-11-07 11:18:52 +00:00
Linus Torvalds
ff7afaeca1 More NFS Client Bugfixes for Linux 6.12-rc
Stable Fixes:
 * Fix KMSAN warning in decode_getfattr_attrs()
 
 Other Bugfixes:
 * Handle -ENOTCONN in xs_tcp_setup_socked()
 * NFSv3: only use NFS timeout for MOUNT when protocols are compatible
 * Fix attribute delegation behavior on exclusive create and a/mtime changes
 * Fix localio to cope with racing nfs_local_probe()
 * Avoid i_lock contention in fs_clear_invalid_mapping()
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEnZ5MQTpR7cLU7KEp18tUv7ClQOsFAmcr1HUACgkQ18tUv7Cl
 QOtdYBAA0YohWDHflcHPbltJu0UyCyDDtowvpVacSDJwZwVEXnLQRTTqrdUnWVxx
 Bc2Ae8tGsfcwo10yZ6LUIPjcyEqLQeYvKoKv2Awf0j7eubjRYZrQVypIKtmy8aC2
 H5ETCyrbIubE06jX8EPO8LFxQ+T6nGD7kC8qJZL8z/aNVXGA2nRRCi7AzdE4o6Ht
 0t6fC+W5vxJ4hQHYKb59nGvREMwpKSLg2U4wo1lyFvkDxEJ06DobGOKEtD333cI8
 Mou/1UlSZ6RzgfwJNIPMMpCepIp2spaDeet0XVN+zqzxg55Jmk7LqpxP5pswTjLb
 WsxErV9ZRXtwutCCf+IDoMCv/YS4g4ZG7CLKXQ4felKJVYIuiS4z0n659xRqLyyi
 nW71vrRUdOBE3rCXUW6crZYwX/fHDvl6bsq9/h7cy2ZPnbGkVvXx+LIm0dJRenfb
 MaxVM3CyrMnzL3UUk/caK/rVCOHrDD5q/dAtSNfizMWnqoX+gXby3ho6Zwn0Wj89
 NiUZJIRI/s4V1WzMw4g+Daz7LUUwGblODTtphH2nnKRDfTiYXeT/r/waU6zUOVcS
 7Jd285DF/tkQp2SJ3nvsM/ni7TD2UuG2BsKA3Urlht9i32lwyENeS3nNcx6aHo3i
 blNpD+9mp3vZfWWZNVvLM/JldcIqEvd30+P6GWwS/Td8Zz4PYIM=
 =9mwu
 -----END PGP SIGNATURE-----

Merge tag 'nfs-for-6.12-3' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client fixes from Anna Schumaker:
 "These are mostly fixes that came up during the nfs bakeathon the other
  week.

  Stable Fixes:
   - Fix KMSAN warning in decode_getfattr_attrs()

  Other Bugfixes:
   - Handle -ENOTCONN in xs_tcp_setup_socked()
   - NFSv3: only use NFS timeout for MOUNT when protocols are compatible
   - Fix attribute delegation behavior on exclusive create and a/mtime
     changes
   - Fix localio to cope with racing nfs_local_probe()
   - Avoid i_lock contention in fs_clear_invalid_mapping()"

* tag 'nfs-for-6.12-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  nfs: avoid i_lock contention in nfs_clear_invalid_mapping
  nfs_common: fix localio to cope with racing nfs_local_probe()
  NFS: Further fixes to attribute delegation a/mtime changes
  NFS: Fix attribute delegation behaviour on exclusive create
  nfs: Fix KMSAN warning in decode_getfattr_attrs()
  NFSv3: only use NFS timeout for MOUNT when protocols are compatible
  sunrpc: handle -ENOTCONN in xs_tcp_setup_socket()
2024-11-06 13:09:22 -10:00
Mario Limonciello
b79276dcac ACPI: processor: Move arch_init_invariance_cppc() call later
arch_init_invariance_cppc() is called at the end of
acpi_cppc_processor_probe() in order to configure frequency invariance
based upon the values from _CPC.

This however doesn't work on AMD CPPC shared memory designs that have
AMD preferred cores enabled because _CPC needs to be analyzed from all
cores to judge if preferred cores are enabled.

This issue manifests to users as a warning since commit 21fb59ab4b
("ACPI: CPPC: Adjust debug messages in amd_set_max_freq_ratio() to warn"):
```
Could not retrieve highest performance (-19)
```

However the warning isn't the cause of this, it was actually
commit 279f838a61 ("x86/amd: Detect preferred cores in
amd_get_boost_ratio_numerator()") which exposed the issue.

To fix this problem, change arch_init_invariance_cppc() into a new weak
symbol that is called at the end of acpi_processor_driver_init().
Each architecture that supports it can declare the symbol to override
the weak one.

Define it for x86, in arch/x86/kernel/acpi/cppc.c, and for all of the
architectures using the generic arch_topology.c code.

Fixes: 279f838a61 ("x86/amd: Detect preferred cores in amd_get_boost_ratio_numerator()")
Reported-by: Ivan Shapovalov <intelfx@intelfx.name>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219431
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20241104222855.3959267-1-superm1@kernel.org
[ rjw: Changelog edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-11-06 21:31:36 +01:00
Lorenzo Stoakes
5baf8b037d mm: refactor arch_calc_vm_flag_bits() and arm64 MTE handling
Currently MTE is permitted in two circumstances (desiring to use MTE
having been specified by the VM_MTE flag) - where MAP_ANONYMOUS is
specified, as checked by arch_calc_vm_flag_bits() and actualised by
setting the VM_MTE_ALLOWED flag, or if the file backing the mapping is
shmem, in which case we set VM_MTE_ALLOWED in shmem_mmap() when the mmap
hook is activated in mmap_region().

The function that checks that, if VM_MTE is set, VM_MTE_ALLOWED is also
set is the arm64 implementation of arch_validate_flags().

Unfortunately, we intend to refactor mmap_region() to perform this check
earlier, meaning that in the case of a shmem backing we will not have
invoked shmem_mmap() yet, causing the mapping to fail spuriously.

It is inappropriate to set this architecture-specific flag in general mm
code anyway, so a sensible resolution of this issue is to instead move the
check somewhere else.

We resolve this by setting VM_MTE_ALLOWED much earlier in do_mmap(), via
the arch_calc_vm_flag_bits() call.

This is an appropriate place to do this as we already check for the
MAP_ANONYMOUS case here, and the shmem file case is simply a variant of
the same idea - we permit RAM-backed memory.

This requires a modification to the arch_calc_vm_flag_bits() signature to
pass in a pointer to the struct file associated with the mapping, however
this is not too egregious as this is only used by two architectures anyway
- arm64 and parisc.

So this patch performs this adjustment and removes the unnecessary
assignment of VM_MTE_ALLOWED in shmem_mmap().

[akpm@linux-foundation.org: fix whitespace, per Catalin]
Link: https://lkml.kernel.org/r/ec251b20ba1964fb64cf1607d2ad80c47f3873df.1730224667.git.lorenzo.stoakes@oracle.com
Fixes: deb0f65628 ("mm/mmap: undo ->mmap() when arch_validate_flags() fails")
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Jann Horn <jannh@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Helge Deller <deller@gmx.de>
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Will Deacon <will@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-11-05 16:49:55 -08:00
Lorenzo Stoakes
0fb4a7ad27 mm: refactor map_deny_write_exec()
Refactor the map_deny_write_exec() to not unnecessarily require a VMA
parameter but rather to accept VMA flags parameters, which allows us to
use this function early in mmap_region() in a subsequent commit.

While we're here, we refactor the function to be more readable and add
some additional documentation.

Link: https://lkml.kernel.org/r/6be8bb59cd7c68006ebb006eb9d8dc27104b1f70.1730224667.git.lorenzo.stoakes@oracle.com
Fixes: deb0f65628 ("mm/mmap: undo ->mmap() when arch_validate_flags() fails")
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reported-by: Jann Horn <jannh@google.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Jann Horn <jannh@google.com>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Helge Deller <deller@gmx.de>
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Will Deacon <will@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-11-05 16:49:55 -08:00
Linus Torvalds
2e1b3cc9d7 soc: fixes for 6.12, part 2
Where the last set of fixes was mostly drivers, this time the devicetree
 changes all come at once, targeting mostly the Rockchips, Qualcomm and
 NXP platforms.
 
 The Qualcomm bugfixes target the Snapdragon X Elite laptops, specifically
 problems with PCIe and NVMe support to improve reliability, and a boot
 regresion on msm8939. Also for Snapdragon platforms, there are a number
 of correctness changes in the several platform specific device drivers,
 but none of these are as impactful.
 
 On the NXP i.MX platform, the fixes are all for 64-bit i.MX8 variants,
 correcting individual entries in the devicetree that were incorrect and
 causing the media, video, mmc and spi drivers to misbehave in minor
 ways.
 
 The Arm SCMI firmware driver gets fixes for a use-after-free bug and
 for correctly parsing firmware information.
 
 On the RISC-V side, there are three minor devicetree fixes for starfive
 and sophgo, again addressing only minor mistakes. One device driver
 patch fixes a problem with spurious interrupt handling.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEiK/NIGsWEZVxh/FrYKtH/8kJUicFAmcpR7oACgkQYKtH/8kJ
 Uic9dA/+NzeNald+ap++pYYmIx9FcV3q3aieN4j5NRgAwUS84bNXpARkDQAK8lx8
 GFzH7VUe0YwKlh+70P73eaLqsRyYE37eUyvabwnxgO0QnI798MZfM5diDvAFm0LK
 kQKnNLx0qojt6HQTN3PVfOn+rcp2J5dgUV+ZAG9TEM3YKA0MY/bABRqaZtIZzSxg
 WwM+jqFh5+EugiioSlL6HCdAVk12wwEJkAInEEY1y/KaeQS9K8vzEOwk4FDeIf2a
 3V+G7IVIBI4rbvrAs2ukW3OrRiGT+svINS5k7qkap13YZUUjENnJYGYNm6woTTyb
 INpBowLKr1gJ1Aluk8AELvpa+aX1BY9rkxP+vTG0HrZVdrPcPToFUBQA4qZgpu/i
 k0uWb20uN1b2Uor2XP2hcTxvzfKPlvnYHxLTMG89PxoVrMX+oEQoCrAP24YcSkPd
 srV0aU54MUHANXEnNco0txdElK+8L7ZCyB19KpVnqqshohDpQ+zkX15Hw9uQLwEc
 RbF99SrR9KFg3sY62Q7LgJOhQ3x6LjGhqPCjejIZ9DvEzndArKYnkkiJYdxxhqkB
 WN1LB/PmnKPAAh1lJdej6SPhiwCCpEFG3IyS/H1/lv7CR94LVode1J4dYTJmcZaq
 aownmb4W1zECgMGQS6YjhuAG1h7D0QtSmWBAuiC+H+T2QTRPtKI=
 =9YYG
 -----END PGP SIGNATURE-----

Merge tag 'arm-fixes-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC fixes from Arnd Bergmann:
 "Where the last set of fixes was mostly drivers, this time the
  devicetree changes all come at once, targeting mostly the Rockchips,
  Qualcomm and NXP platforms.

  The Qualcomm bugfixes target the Snapdragon X Elite laptops,
  specifically problems with PCIe and NVMe support to improve
  reliability, and a boot regresion on msm8939.

  Also for Snapdragon platforms, there are a number of correctness
  changes in the several platform specific device drivers, but none of
  these are as impactful.

  On the NXP i.MX platform, the fixes are all for 64-bit i.MX8 variants,
  correcting individual entries in the devicetree that were incorrect
  and causing the media, video, mmc and spi drivers to misbehave in
  minor ways.

  The Arm SCMI firmware driver gets fixes for a use-after-free bug and
  for correctly parsing firmware information.

  On the RISC-V side, there are three minor devicetree fixes for
  starfive and sophgo, again addressing only minor mistakes. One device
  driver patch fixes a problem with spurious interrupt handling"

* tag 'arm-fixes-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (63 commits)
  firmware: arm_scmi: Use vendor string in max-rx-timeout-ms
  dt-bindings: firmware: arm,scmi: Add missing vendor string
  riscv: dts: Replace deprecated snps,nr-gpios property for snps,dw-apb-gpio-port devices
  arm64: dts: rockchip: Correct GPIO polarity on brcm BT nodes
  arm64: dts: rockchip: Drop invalid clock-names from es8388 codec nodes
  ARM: dts: rockchip: Fix the realtek audio codec on rk3036-kylin
  ARM: dts: rockchip: Fix the spi controller on rk3036
  ARM: dts: rockchip: drop grf reference from rk3036 hdmi
  ARM: dts: rockchip: fix rk3036 acodec node
  arm64: dts: rockchip: remove orphaned pinctrl-names from pinephone pro
  soc: qcom: pmic_glink: Handle GLINK intent allocation rejections
  rpmsg: glink: Handle rejected intent request better
  arm64: dts: qcom: x1e80100: fix PCIe5 interconnect
  arm64: dts: qcom: x1e80100: fix PCIe4 interconnect
  arm64: dts: qcom: x1e80100: Fix up BAR spaces
  MAINTAINERS: invert Misc RISC-V SoC Support's pattern
  soc: qcom: socinfo: fix revision check in qcom_socinfo_probe()
  arm64: dts: qcom: x1e80100-qcp: fix nvme regulator boot glitch
  arm64: dts: qcom: x1e80100-microsoft-romulus: fix nvme regulator boot glitch
  arm64: dts: qcom: x1e80100-yoga-slim7x: fix nvme regulator boot glitch
  ...
2024-11-04 15:23:26 -10:00
Mike Snitzer
bc29408695 nfs_common: fix localio to cope with racing nfs_local_probe()
Fix the possibility of racing nfs_local_probe() resulting in:
  list_add double add: new=ffff8b99707f9f58, prev=ffff8b99707f9f58, next=ffffffffc0f30000.
  ------------[ cut here ]------------
  kernel BUG at lib/list_debug.c:35!

Add nfs_uuid_init() to properly initialize all nfs_uuid_t members
(particularly its list_head).

Switch to returning bool from nfs_uuid_begin(), returns false if
nfs_uuid_t is already in-use (its list_head is on a list). Update
nfs_local_probe() to return early if the nfs_client's cl_uuid
(nfs_uuid_t) is in-use.

Also, switch nfs_uuid_begin() from using list_add_tail_rcu() to
list_add_tail() -- rculist was used in an earlier version of the
localio code that had a lockless nfs_uuid_lookup interface.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
2024-11-04 10:24:19 -05:00
Arnd Bergmann
bbfbb57958 Qualcomm driver fixes for v6.12
The Qualcomm EDAC driver's configuration of interrupts is made optional,
 to avoid violating security constriants on X Elite platform .
 
 The SCM drivers' detection mechanism for the presence of SHM bridge in QTEE,
 is corrected to handle the case where firmware successfully returns that
 the interface isn't supported.
 
 The GLINK driver and the PMIC GLINK interface is updated to handle
 buffer allocation issues during initialization of the communication
 channel.
 
 Allocation error handling in the socinfo dirver is corrected, and then
 the fix is corrected.
 -----BEGIN PGP SIGNATURE-----
 
 iQJJBAABCAAzFiEEBd4DzF816k8JZtUlCx85Pw2ZrcUFAmck/kgVHGFuZGVyc3Nv
 bkBrZXJuZWwub3JnAAoJEAsfOT8Nma3FqV8QAMEYiZp4KnS6QkT4h47ET/dl3AiY
 EIyUge41uXjJYO4rK2JpYWi2Y30CXXwb0MRuhfZyI47mU2xYqP30hLEliqZLQqU3
 ulc4hmVyPeelRtpSX36UyZQWcaTcr0IyWnhnPSPoIr/WuyvFojBVucnAzHGFYHw6
 0Wl0Uwg0vaoptAXnAxC671ggkbXeUuxR1sOMnVAzAL9sUgZMAjDHg+Yc/Oz0i7KZ
 16OcOPFWhN+PegrIAPKx5J3X9PUsEoPqE83y3DdRVv62c58RU5tfhrhEIhmo3DVn
 ruTbrf1vV6cE1iWfGQIxyVt0WJGnY/dZqQjQxinZF0U9dlJl5+ke9ZTsaRxF0s0J
 wejMDOoqtRbNeotLxhQAp0KbPbcUHg8kkUrYMiTZLMh4eNIEBi4yLT8KhDT7IUgT
 SEP6jK4z482xpaTrDf5hDmnIMSfAO9fC50QiUMc8eNGL84XYIJgcYfi+LAP7TSiV
 wP6PI1moQcSvq034csy4AfHlsULxMdqzqh86N4DSdkoa/om2JRiYIXfTkZOteOEg
 GR4gPYigdBV8X4jj4XDiRbk+hbf+bbc6qet0HKvBPjYcKyvpH+SEVMsuxzAO8ybP
 RjP5pDrOSb7mLlx/q8RBUwyuVWk6gtDhL6tgvwfP+qu+dxTcHgRSqAi5BQfOWMvf
 2K4QO3/0tYunyqaf
 =H31v
 -----END PGP SIGNATURE-----
gpgsig -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEiK/NIGsWEZVxh/FrYKtH/8kJUicFAmcoyr0ACgkQYKtH/8kJ
 UiebJA/+OwoABEZcspBT92CnlAaIgIITx0znuO9srUcaiNxOTrZH2+T6z+sKHvOV
 bfhj0JZyK0Qk6sxU9PoczIXb2Xc42lemkZwL6TfDjQlOI10mvfTOgnIFPldG1RIp
 FcFjI3Tb6SKqh9GxDm5qLdxFn8ZoGKTLtUpP3FuV6lQNpiS7jLJILSNFXbVVMnk/
 U2HY76YQ8u2DPk5ZXmjrw49NRDvQ22ufwxJJctE0fvVyr+AUhTFBHH9h6fo3RxbC
 4IMCmEfVLnJ+ye9CqB4ahkcbu4gwzzU0eRpMb7mZ2GhufuCjgfBYA4U2XZhdEv0w
 9GenVlPr0Hs1dtpUBxvfNf0kJ2uyti4UGkW7gn8+m/sl73bMVIGPX72rxdk3vbir
 yztmdl3Nya0Nh9fPJxwP4BT6JsMshsz0POzvIOqeRTUw9yKD+wIQg9a+cwWWqdlu
 jNvBGprW7MS03uQWIWYTGkjqDsStZVJaFO//PHx+ZZ0eY/H2Lminf3GL2tsAYUtE
 pIVsS4NUcCygEELb7cEbi+S9EMkgQZPd71VAex9bjKNquBs60fSU1GZr3oOuHluv
 2XI2O+FPwdTH+yAXzqRlCj5Rczum0joa9q2lHW7hs/h7AKVSNCfzj+0YjDFIhu2E
 BnS0nbwm5axYm7vsnfA4O4QkE6AtGlRpmVfiumLg/Vif8KsA3N8=
 =2qZ7
 -----END PGP SIGNATURE-----

Merge tag 'qcom-drivers-fixes-for-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/fixes

Qualcomm driver fixes for v6.12

The Qualcomm EDAC driver's configuration of interrupts is made optional,
to avoid violating security constriants on X Elite platform .

The SCM drivers' detection mechanism for the presence of SHM bridge in QTEE,
is corrected to handle the case where firmware successfully returns that
the interface isn't supported.

The GLINK driver and the PMIC GLINK interface is updated to handle
buffer allocation issues during initialization of the communication
channel.

Allocation error handling in the socinfo dirver is corrected, and then
the fix is corrected.

* tag 'qcom-drivers-fixes-for-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  soc: qcom: pmic_glink: Handle GLINK intent allocation rejections
  rpmsg: glink: Handle rejected intent request better
  soc: qcom: socinfo: fix revision check in qcom_socinfo_probe()
  firmware: qcom: scm: Return -EOPNOTSUPP for unsupported SHM bridge enabling
  EDAC/qcom: Make irq configuration optional
  firmware: qcom: scm: fix a NULL-pointer dereference
  firmware: qcom: scm: suppress download mode error
  soc: qcom: Add check devm_kasprintf() returned value
  MAINTAINERS: Qualcomm SoC: Match reserved-memory bindings

Link: https://lore.kernel.org/r/20241101161455.746290-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-11-04 14:23:09 +01:00
Linus Torvalds
a8cc743272 17 hotfixes. 9 are cc:stable. 13 are MM and 4 are non-MM.
The usual collection of singletons - please see the changelogs.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZyfGDAAKCRDdBJ7gKXxA
 jr19AQD6bfDF/6L2Alq1QG26pgrgccEbKzDSzR6pBajwCbdrNQD/XPhiv3zRJfGf
 lgt0Qkqwe/ApBhVYUnL8y1CePv3EDgA=
 =W5W0
 -----END PGP SIGNATURE-----

Merge tag 'mm-hotfixes-stable-2024-11-03-10-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "17 hotfixes.  9 are cc:stable.  13 are MM and 4 are non-MM.

  The usual collection of singletons - please see the changelogs"

* tag 'mm-hotfixes-stable-2024-11-03-10-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm: multi-gen LRU: use {ptep,pmdp}_clear_young_notify()
  mm: multi-gen LRU: remove MM_LEAF_OLD and MM_NONLEAF_TOTAL stats
  mm, mmap: limit THP alignment of anonymous mappings to PMD-aligned sizes
  mm: shrinker: avoid memleak in alloc_shrinker_info
  .mailmap: update e-mail address for Eugen Hristev
  vmscan,migrate: fix page count imbalance on node stats when demoting pages
  mailmap: update Jarkko's email addresses
  mm: allow set/clear page_type again
  nilfs2: fix potential deadlock with newly created symlinks
  Squashfs: fix variable overflow in squashfs_readpage_block
  kasan: remove vmalloc_percpu test
  tools/mm: -Werror fixes in page-types/slabinfo
  mm, swap: avoid over reclaim of full clusters
  mm: fix PSWPIN counter for large folios swap-in
  mm: avoid VM_BUG_ON when try to map an anon large folio to zero page.
  mm/codetag: fix null pointer check logic for ref and tag
  mm/gup: stop leaking pinned pages in low memory conditions
2024-11-03 10:25:05 -10:00
Yu Zhao
1d4832becd mm: multi-gen LRU: use {ptep,pmdp}_clear_young_notify()
When the MM_WALK capability is enabled, memory that is mostly accessed by
a VM appears younger than it really is, therefore this memory will be less
likely to be evicted.  Therefore, the presence of a running VM can
significantly increase swap-outs for non-VM memory, regressing the
performance for the rest of the system.

Fix this regression by always calling {ptep,pmdp}_clear_young_notify()
whenever we clear the young bits on PMDs/PTEs.

[jthoughton@google.com: fix link-time error]
Link: https://lkml.kernel.org/r/20241019012940.3656292-3-jthoughton@google.com
Fixes: bd74fdaea1 ("mm: multi-gen LRU: support page table walks")
Signed-off-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: James Houghton <jthoughton@google.com>
Reported-by: David Stevens <stevensd@google.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: David Matlack <dmatlack@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Wei Xu <weixugc@google.com>
Cc: <stable@vger.kernel.org>
Cc: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-11-03 10:47:03 -08:00
Yu Zhao
ddd6d8e975 mm: multi-gen LRU: remove MM_LEAF_OLD and MM_NONLEAF_TOTAL stats
Patch series "mm: multi-gen LRU: Have secondary MMUs participate in
MM_WALK".

Today, the MM_WALK capability causes MGLRU to clear the young bit from
PMDs and PTEs during the page table walk before eviction, but MGLRU does
not call the clear_young() MMU notifier in this case.  By not calling this
notifier, the MM walk takes less time/CPU, but it causes pages that are
accessed mostly through KVM / secondary MMUs to appear younger than they
should be.

We do call the clear_young() notifier today, but only when attempting to
evict the page, so we end up clearing young/accessed information less
frequently for secondary MMUs than for mm PTEs, and therefore they appear
younger and are less likely to be evicted.  Therefore, memory that is
*not* being accessed mostly by KVM will be evicted *more* frequently,
worsening performance.

ChromeOS observed a tab-open latency regression when enabling MGLRU with a
setup that involved running a VM:

		Tab-open latency histogram (ms)
Version		p50	mean	p95	p99	max
base		1315	1198	2347	3454	10319
mglru		2559	1311	7399	12060	43758
fix		1119	926	2470	4211	6947

This series replaces the final non-selftest patchs from this series[1],
which introduced a similar change (and a new MMU notifier) with KVM
optimizations.  I'll send a separate series (to Sean and Paolo) for the
KVM optimizations.

This series also makes proactive reclaim with MGLRU possible for KVM
memory.  I have verified that this functions correctly with the selftest
from [1], but given that that test is a KVM selftest, I'll send it with
the rest of the KVM optimizations later.  Andrew, let me know if you'd
like to take the test now anyway.

[1]: https://lore.kernel.org/linux-mm/20240926013506.860253-18-jthoughton@google.com/


This patch (of 2):

The removed stats, MM_LEAF_OLD and MM_NONLEAF_TOTAL, are not very helpful
and become more complicated to properly compute when adding
test/clear_young() notifiers in MGLRU's mm walk.

Link: https://lkml.kernel.org/r/20241019012940.3656292-1-jthoughton@google.com
Link: https://lkml.kernel.org/r/20241019012940.3656292-2-jthoughton@google.com
Fixes: bd74fdaea1 ("mm: multi-gen LRU: support page table walks")
Signed-off-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: James Houghton <jthoughton@google.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: David Matlack <dmatlack@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Stevens <stevensd@google.com>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Wei Xu <weixugc@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-11-03 10:47:02 -08:00
Linus Torvalds
295ba6501d Input updates for v6.12-rc5
- a fix for regression in input core introduced in 6.11 preventing
   re-registering input handlers
 
 - a fix for adp5588-keys driver tyring to disable interrupt 0 at suspend
   when devices is used without interrupt
 
 - a fix for edt-ft5x06 to stop leaking regmap structure when probing
   fails and to make sure it is not released too early on removal.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQST2eWILY88ieB2DOtAj56VGEWXnAUCZycQwgAKCRBAj56VGEWX
 nFgtAQDxuWplL+cwA5f3g+/Rq38faHBY5ebmsC9G/QnBZs4hTQD/dL04tU9NwvNq
 GYw4MYRNaDIeY8vyq21Y+dQe0uL0rAM=
 =xAeU
 -----END PGP SIGNATURE-----

Merge tag 'input-for-v6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input fixes from Dmitry Torokhov:

 - a fix for regression in input core introduced in 6.11 preventing
   re-registering input handlers

 - a fix for adp5588-keys driver tyring to disable interrupt 0 at
   suspend when devices is used without interrupt

 - a fix for edt-ft5x06 to stop leaking regmap structure when probing
   fails and to make sure it is not released too early on removal.

* tag 'input-for-v6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: fix regression when re-registering input handlers
  Input: adp5588-keys - do not try to disable interrupt 0
  Input: edt-ft5x06 - fix regmap leak when probe fails
2024-11-03 08:35:29 -10:00
Linus Torvalds
b019b4a670 A single fix for posix CPU timers
When a thread is cloned, the posix CPU timers are not inherited.
 
   If the parent has a CPU timer armed the corresponding tick dependency in
   the tasks tick_dep_mask is set and copied to the new thread, which means
   the new thread and all decendants will prevent the system to go into full
   NOHZ operation.
 
   Clear the tick dependency mask in copy_process() to fix this.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmcnT/oTHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoZw5D/0bqjjMYiE0ws8nuuXN1gL2T1wt6P2C
 2zzEKnk6nsxnGbMfFs7XifDkqSOHNVro7F6kCkz6cH4U/VSK6R2nNONbufz4mNWk
 6uDvdlZps30ekmxN+C3fB6S/4MNVOhXFFXjsQhT/PxX/CfibVP5fATLtcRLq9Lfx
 mV3nnxKTHPjDGz2/2QRyYpA3G1fzOj/l2QeJsVAIC8GxCo7drLVe0yn5Yt+13zhU
 JMjgt9ox4PKFsjaXrqvt1yKNTtb+evjYSIVXxIg60oxUkfva6XFLXJv3rjbARUNj
 aqBHfkZ1/d2Hwc0WexDZfvhNWeCqnfUA+db7ALSYICbNd37EVxWVZA2TwfkkWKSt
 RDq3xX6NJSd71h0lxDvzv7Ph3NUq23rq3LycAkjqfhiFjPQmE6axtnioXcR5mtVp
 q9tilB/3I4zj4BIYPfd9KowkdclRSK+B3Oo0DTyuVhKLggF0UD3poDxT4HxnBCFB
 uKDV8GDsoD8Ksjsl0/X/D4oorqLYAT0tG9gxMw1Kii16gijhhu5qeqTWY+qs9ieg
 2J+Ku83QLQgljvy2s7y0AnMZMxaeKN5YMs6zNV+yGAoTFyft3CnBMKalPHfOCI0A
 fdKHi2aKm+lLrp/UIG2Yw9N1xfcrGWA2moH+9dw6zTyAei+TInP+WYndI7VR5EDf
 3KvW3OoRf0sywA==
 =83r/
 -----END PGP SIGNATURE-----

Merge tag 'timers-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fix from Thomas Gleixner:
 "A single fix for posix CPU timers.

  When a thread is cloned, the posix CPU timers are not inherited.

  If the parent has a CPU timer armed the corresponding tick dependency
  in the tasks tick_dep_mask is set and copied to the new thread, which
  means the new thread and all decendants will prevent the system to go
  into full NOHZ operation.

  Clear the tick dependency mask in copy_process() to fix this"

* tag 'timers-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  posix-cpu-timers: Clear TICK_DEP_BIT_POSIX_TIMER on clone
2024-11-03 08:22:21 -10:00
Dmitry Torokhov
071b24b54d Input: fix regression when re-registering input handlers
Commit d469647baf ("Input: simplify event handling logic") introduced
code that would set handler->events() method to either
input_handler_events_filter() or input_handler_events_default() or
input_handler_events_null(), depending on the kind of input handler
(a filter or a regular one) we are dealing with. Unfortunately this
breaks cases when we try to re-register the same filter (as is the case
with sysrq handler): after initial registration the handler will have 2
event handling methods defined, and will run afoul of the check in
input_handler_check_methods():

	input: input_handler_check_methods: only one event processing method can be defined (sysrq)
	sysrq: Failed to register input handler, error -22

Fix this by adding handle_events() method to input_handle structure and
setting it up when registering a new input handle according to event
handling methods defined in associated input_handler structure, thus
avoiding modifying the input_handler structure.

Reported-by: "Ned T. Crigler" <crigler@gmail.com>
Reported-by: Christian Heusel <christian@heusel.eu>
Tested-by: "Ned T. Crigler" <crigler@gmail.com>
Tested-by: Peter Seiderer <ps.report@gmx.net>
Fixes: d469647baf ("Input: simplify event handling logic")
Link: https://lore.kernel.org/r/Zx2iQp6csn42PJA7@xavtug
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-11-02 22:28:58 -07:00
Linus Torvalds
269ce3bd62 drm fixes for 6.12-rc6
xe:
 - Fix missing HPD interrupt enabling, bringing one PM refactor with it
 - Workaround LNL GGTT invalidation not being visible to GuC
 - Avoid getting jobs stuck without a protecting timeout
 
 ivpu:
 - Fix firewall IRQ handling
 
 panthor:
 - Fix firmware initialization wrt page sizes
 - Fix handling and reporting of dead job groups
 
 sched:
 - Guarantee forward progress via WC_MEM_RECLAIM
 
 tests:
 - Fix memory leak in drm_display_mode_from_cea_vic()
 
 amdgpu:
 - DCN 3.5 fix
 - Vangogh SMU KASAN fix
 - SMU 13 profile reporting fix
 
 mediatek:
 - Fix degradation problem of alpha blending
 - Fix color format MACROs in OVL
 - Fix get efuse issue for MT8188 DPTX
 - Fix potential NULL dereference in mtk_crtc_destroy()
 - Correct dpi power-domains property
 - Add split subschema property constraints
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmclJX4ACgkQDHTzWXnE
 hr7rEw/9E+zpgUW52ThBDpdE4A2O0qdSUd8LtQJbkgx+Us85Hv2p9e+HOhQqrKMj
 9O4pwh47oI4vbk3uL68EQTkmmqBUbLNRhfTnps/kVPiMQLklzl3cUw7Jdq2/1E0r
 Nyh+kJFsHXFcHwB2lB2Cy+ATT8Vw28WlWni7y3hZZvzCrbOVSN16bXmTbjQ/vQYR
 TSIwJF9P9h+P96JMBXdGhZx3eyiMOqd5EfeLcR9fKRdQsY4ZVk+9Q5CKS/pyKfXP
 A9e+MHrHf7fSlFT3zptXZ9l4CLo6QGxGppYy79h8hp1oLPFmm1jnWFfDPdFSa/qm
 +ZTPncf0fz5m4YmJZFTcS+69ITQDjON6FBOu3fnoGuLG8+31/G+/1+uvrNxOID0T
 zbRcJCPPtdSpDRWsl5+29HviHTvhniM+zYZIaYl1LrCDxMAqoUjAB3dRZKgKHXmF
 KW7kILXe33m82X7V+jVuELp4m4Q062CIa5tTvDDJ3iPRFKc4HAIioD33g1DPLRPy
 +A1iwvC0EoghID6eTxVnncQO1snlgXeS4begUtx2E/LkkIH3TbtStM5aaz7tHgNT
 LTTk2YsGr+5JQQ8N1ci1clZUfSD9xgFlDwobUBGMg2Lo+tVEKhHp8c1Q3quCt214
 7PMmNOQXr243vmcs7gvl19pfy0HZRBdISabRazFYCYhiwCsvZQE=
 =U58l
 -----END PGP SIGNATURE-----

Merge tag 'drm-fixes-2024-11-02' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Regular fixes pull, nothing too out of the ordinary, the mediatek
  fixes came in a batch that I might have preferred a bit earlier but
  all seem fine, otherwise regular xe/amdgpu and a few misc ones.

  xe:
   - Fix missing HPD interrupt enabling, bringing one PM refactor with it
   - Workaround LNL GGTT invalidation not being visible to GuC
   - Avoid getting jobs stuck without a protecting timeout

  ivpu:
   - Fix firewall IRQ handling

  panthor:
   - Fix firmware initialization wrt page sizes
   - Fix handling and reporting of dead job groups

  sched:
   - Guarantee forward progress via WC_MEM_RECLAIM

  tests:
   - Fix memory leak in drm_display_mode_from_cea_vic()

  amdgpu:
   - DCN 3.5 fix
   - Vangogh SMU KASAN fix
   - SMU 13 profile reporting fix

  mediatek:
   - Fix degradation problem of alpha blending
   - Fix color format MACROs in OVL
   - Fix get efuse issue for MT8188 DPTX
   - Fix potential NULL dereference in mtk_crtc_destroy()
   - Correct dpi power-domains property
   - Add split subschema property constraints"

* tag 'drm-fixes-2024-11-02' of https://gitlab.freedesktop.org/drm/kernel: (27 commits)
  drm/xe: Don't short circuit TDR on jobs not started
  drm/xe: Add mmio read before GGTT invalidate
  drm/tests: hdmi: Fix memory leaks in drm_display_mode_from_cea_vic()
  drm/connector: hdmi: Fix memory leak in drm_display_mode_from_cea_vic()
  drm/tests: helpers: Add helper for drm_display_mode_from_cea_vic()
  drm/panthor: Report group as timedout when we fail to properly suspend
  drm/panthor: Fail job creation when the group is dead
  drm/panthor: Fix firmware initialization on systems with a page size > 4k
  accel/ivpu: Fix NOC firewall interrupt handling
  drm/xe/display: Add missing HPD interrupt enabling during non-d3cold RPM resume
  drm/xe/display: Separate the d3cold and non-d3cold runtime PM handling
  drm/xe: Remove runtime argument from display s/r functions
  drm/amdgpu/smu13: fix profile reporting
  drm/amd/pm: Vangogh: Fix kernel memory out of bounds write
  Revert "drm/amd/display: update DML2 policy EnhancedPrefetchScheduleAccelerationFinal DCN35"
  drm/sched: Mark scheduler work queues with WQ_MEM_RECLAIM
  drm/tegra: Fix NULL vs IS_ERR() check in probe()
  dt-bindings: display: mediatek: split: add subschema property constraints
  dt-bindings: display: mediatek: dpi: correct power-domains property
  drm/mediatek: Fix potential NULL dereference in mtk_crtc_destroy()
  ...
2024-11-01 15:37:09 -10:00
Linus Torvalds
b1966a1fd2 cxl fixes for v6.12-rc6
- Fix crashes when running with cxl-test code
 	- Fix Trace DRAM Event Record field decodes
 	- Fix module/built in initialization order errors
 	- Fix use after free on decoder shutdowns
 	- Fix out of order decoder allocations
 	- Improve cxl-test to better reflect real world systems
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYKADIWIQSgX9xt+GwmrJEQ+euebuN7TNx1MQUCZyUaZhQcaXJhLndlaW55
 QGludGVsLmNvbQAKCRCebuN7TNx1MRHmAP40P0fHjUxtA3FxxPiJLOouUUEfMzyr
 z2hstFw6gh1CNgEA4a4cOyDSe41ptqGFRIHfPeay7l8MdYtFV3iiYeDPnAA=
 =awb7
 -----END PGP SIGNATURE-----

Merge tag 'cxl-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull cxl fixes from Ira Weiny:
 "The bulk of these fixes center around an initialization order bug
  reported by Gregory Price and some additional fall out from the
  debugging effort.

  In summary, cxl_acpi and cxl_mem race and previously worked because of
  a bus_rescan_devices() while testing without modules built in.

  Unfortunately with modules built in the rescan would fail due to the
  cxl_port driver being registered late via the build order. Furthermore
  it was found bus_rescan_devices() did not guarantee a probe barrier
  which CXL was expecting. Additional fixes to cxl-test and decoder
  allocation came along as they were found in this debugging effort.

  The other fixes are pretty minor but one affects trace point data seen
  by user space.

  Summary:

   - Fix crashes when running with cxl-test code

   - Fix Trace DRAM Event Record field decodes

   - Fix module/built in initialization order errors

   - Fix use after free on decoder shutdowns

   - Fix out of order decoder allocations

   - Improve cxl-test to better reflect real world systems"

* tag 'cxl-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/test: Improve init-order fidelity relative to real-world systems
  cxl/port: Prevent out-of-order decoder allocation
  cxl/port: Fix use-after-free, permit out-of-order decoder shutdown
  cxl/acpi: Ensure ports ready at cxl_acpi_probe() return
  cxl/port: Fix cxl_bus_rescan() vs bus_rescan_devices()
  cxl/port: Fix CXL port initialization order when the subsystem is built-in
  cxl/events: Fix Trace DRAM Event Record
  cxl/core: Return error when cxl_endpoint_gather_bandwidth() handles a non-PCI device
2024-11-01 15:22:57 -10:00
Linus Torvalds
c426456857 ACPI fix for 6.12-rc6
Make the ACPI CPPC library use a raw spinlock for operations carried
 out in scheduler context via the schedutil governor and the ACPI CPPC
 cpufreq driver (Pierre Gondois).
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmclHlESHHJqd0Byand5
 c29ja2kubmV0AAoJEILEb/54YlRxkasQAKKLQlbVhzb/JZvd56VpJH6Ma0ImuXvX
 uyqhO3gjiCdSx1pxLakaBXM4J887Mtsx5hfy7WrsbUEkEUJqkrwScJee4zjcCH2k
 tWai3Q7YJsqDg4/7Pq8T9uFNEue9ZvWAOuQ/wV8kBPSIuQKCQ59d83eosQyOnSYE
 Avaa78URdnszOXmn3a9chzIUD4HWCmF+/v1D+Bw/HR1vqrdoBnlaRfq9PUsWSjUe
 91CP0HI5I6brKipJgjxv/joxXqKCmvnSkBnD+sk8OyR9kASk8j1TKn1YZDoiNY0x
 bQI5NlOVm+Sx1RTMQCDY1y2EsmIvVYtxHTkPm87dy/q6xyXkwAKBXkfaogsn7fgb
 IbHQrpWnenQP/M49Iqwq0BVelX9jVaWPLtCMYA9nsrYsgUlCH/0rlQ9rcKcP0uhn
 qIbkUt40AyrYmVFon2D+upa7ccqFpfVX/9LljwFujxSwNVGA0tAl52GTQ6+jLWfE
 bOOq8dIJdra03T1IDpmgq/GK3RlYHDZVt/QsaZ2SYBZgh9wl4A65tX97++tsP0Re
 ytZES41uPqmuN4gmR+/T6RL3tb/c7N/7R5Zk/o51kFMFP0DCuOP6GO7JLPAgkRj+
 e/6zq+eaIcSuDzYCfzh66zlcOexj4EucjImKe/AC1VJSF5qgK98QJlAqn1jbfonk
 09ErkHWNwjNl
 =vxLs
 -----END PGP SIGNATURE-----

Merge tag 'acpi-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Make the ACPI CPPC library use a raw spinlock for operations carried
  out in scheduler context via the schedutil governor and the ACPI CPPC
  cpufreq driver (Pierre Gondois)"

* tag 'acpi-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: CPPC: Make rmw_lock a raw_spin_lock
2024-11-01 09:04:23 -10:00
Linus Torvalds
3dfffd506e arm64 fixes for -rc6
- Fix handling of POR_EL0 during signal delivery so that pushing the
   signal context doesn't fail based on the pkey configuration of the
   interrupted context and align our user-visible behaviour with that of
   x86.
 
 - Fix a bogus pointer being passed to the CPU hotplug code from the
   Arm SDEI driver.
 
 - Re-enable software tag-based KASAN with GCC by using an alternative
   implementation of '__no_sanitize_address'.
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAmcjr8wQHHdpbGxAa2Vy
 bmVsLm9yZwAKCRC3rHDchMFjNL2DB/4tNl7feCA2V4fW/Eu3RzXrHTdJbZvTjLDl
 JjeXPZr4WdGQQMgQ0DPZtpnmeBzd5nswx9WHG9VSsUxc5g+rzWxwvMnUeplDvEXo
 Y/QMUq4JZN3eqDZWPs0mEN4fMI+QOihInErVHvFXaJLcbxYrU5BvfwExgfY53AjT
 ZJEPmF291OL6V4UCWVWggk44BQaTBeWmc4itJcYm6z6mIgAgh84MZGK5M0e582ip
 CRAImDiAPqLxRO9kzKcYthI3FDyyVi1HtiSL1CiNktOXMNz19qPelq1XAnDEyvBt
 TEUitTLTwbUJ0nqi4u7ve09aebneAq8nsGucteYTrBU4U/PRjvQO
 =LTB9
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "The important one is a change to the way in which we handle protection
  keys around signal delivery so that we're more closely aligned with
  the x86 behaviour, however there is also a revert of the previous fix
  to disable software tag-based KASAN with GCC, since a workaround
  materialised shortly afterwards.

  I'd love to say we're done with 6.12, but we're aware of some
  longstanding fpsimd register corruption issues that we're almost at
  the bottom of resolving.

  Summary:

   - Fix handling of POR_EL0 during signal delivery so that pushing the
     signal context doesn't fail based on the pkey configuration of the
     interrupted context and align our user-visible behaviour with that
     of x86.

   - Fix a bogus pointer being passed to the CPU hotplug code from the
     Arm SDEI driver.

   - Re-enable software tag-based KASAN with GCC by using an alternative
     implementation of '__no_sanitize_address'"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: signal: Improve POR_EL0 handling to avoid uaccess failures
  firmware: arm_sdei: Fix the input parameter of cpuhp_remove_state()
  Revert "kasan: Disable Software Tag-Based KASAN with GCC"
  kasan: Fix Software Tag-Based KASAN with GCC
2024-11-01 07:54:11 -10:00
Linus Torvalds
17fa6a5f93 vfs-6.12-rc6.iomap
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZyTGVAAKCRCRxhvAZXjc
 oltEAP9r8cWa3Tdv8DzMNWu/jezTUXoW/mX5Qe+c1L6faqj0WQD/dIVtBtG37Tfq
 3Ci9F/GEWjKijtCQ5lwMGUq27jQJ1gk=
 =/0iA
 -----END PGP SIGNATURE-----

Merge tag 'vfs-6.12-rc6.iomap' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs

Pull iomap fixes from Christian Brauner:
 "Fixes for iomap to prevent data corruption bugs in the fallocate
  unshare range implementation of fsdax and a small cleanup to turn
  iomap_want_unshare_iter() into an inline function"

* tag 'vfs-6.12-rc6.iomap' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs:
  iomap: turn iomap_want_unshare_iter into an inline function
  fsdax: dax_unshare_iter needs to copy entire blocks
  fsdax: remove zeroing code from dax_unshare_iter
  iomap: share iomap_unshare_iter predicate code with fsdax
  xfs: don't allocate COW extents when unsharing a hole
2024-11-01 07:45:00 -10:00
Linus Torvalds
d56239a82e vfs-6.12-rc6.fixes
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZyTGAQAKCRCRxhvAZXjc
 opd6AQCal4omyfS8FYe4VRRZ/0XHouagq99I0U0TAmKkvoKAsgD/XrdE+pSTEkPX
 Pv4T9phh1cZRxcyKVu77UoYkuHJEDAg=
 =Lu9R
 -----END PGP SIGNATURE-----

Merge tag 'vfs-6.12-rc6.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs

Pull filesystem fixes from Christian Brauner:
 "VFS:

   - Fix copy_page_from_iter_atomic() if KMAP_LOCAL_FORCE_MAP=y is set

   - Add a get_tree_bdev_flags() helper that allows to modify e.g.,
     whether errors are logged into the filesystem context during
     superblock creation. This is used by erofs to fix a userspace
     regression where an error is currently logged when its used on a
     regular file which is an new allowed mode in erofs.

  netfs:

   - Fix the sysfs debug path in the documentation.

   - Fix iov_iter_get_pages*() for folio queues by skipping the page
     extracation if we're at the end of a folio.

  afs:

   - Fix moving subdirectories to different parent directory.

  autofs:

   - Fix handling of AUTOFS_DEV_IOCTL_TIMEOUT_CMD ioctl in
     validate_dev_ioctl(). The actual ioctl number, not the ioctl
     command needs to be checked for autofs"

* tag 'vfs-6.12-rc6.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs:
  iov_iter: fix copy_page_from_iter_atomic() if KMAP_LOCAL_FORCE_MAP
  autofs: fix thinko in validate_dev_ioctl()
  iov_iter: Fix iov_iter_get_pages*() for folio_queue
  afs: Fix missing subdir edit when renamed between parent dirs
  doc: correcting the debug path for cachefiles
  erofs: use get_tree_bdev_flags() to avoid misleading messages
  fs/super.c: introduce get_tree_bdev_flags()
2024-11-01 07:37:10 -10:00
Linus Torvalds
5635f18942 BPF fixes:
- Fix BPF verifier to force a checkpoint when the program's jump
   history becomes too long (Eduard Zingerman)
 
 - Add several fixes to the BPF bits iterator addressing issues
   like memory leaks and overflow problems (Hou Tao)
 
 - Fix an out-of-bounds write in trie_get_next_key (Byeonguk Jeong)
 
 - Fix BPF test infra's LIVE_FRAME frame update after a page has
   been recycled (Toke Høiland-Jørgensen)
 
 - Fix BPF verifier and undo the 40-bytes extra stack space for
   bpf_fastcall patterns due to various bugs (Eduard Zingerman)
 
 - Fix a BPF sockmap race condition which could trigger a NULL
   pointer dereference in sock_map_link_update_prog (Cong Wang)
 
 - Fix tcp_bpf_recvmsg_parser to retrieve seq_copied from tcp_sk
   under the socket lock (Jiayuan Chen)
 
 Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 -----BEGIN PGP SIGNATURE-----
 
 iIsEABYIADMWIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZyQO/RUcZGFuaWVsQGlv
 Z2VhcmJveC5uZXQACgkQ2yufC7HISIO2vAD+NAng11x6W9tnIOVDHTwvsWL4aafQ
 pmf1zda90bwCIyIA/07ptFPWOH+WTmWqP8pZ9PGY5279KAxurZZDud0SOwIO
 =28aY
 -----END PGP SIGNATURE-----

Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Pull bpf fixes from Daniel Borkmann:

 - Fix BPF verifier to force a checkpoint when the program's jump
   history becomes too long (Eduard Zingerman)

 - Add several fixes to the BPF bits iterator addressing issues like
   memory leaks and overflow problems (Hou Tao)

 - Fix an out-of-bounds write in trie_get_next_key (Byeonguk Jeong)

 - Fix BPF test infra's LIVE_FRAME frame update after a page has been
   recycled (Toke Høiland-Jørgensen)

 - Fix BPF verifier and undo the 40-bytes extra stack space for
   bpf_fastcall patterns due to various bugs (Eduard Zingerman)

 - Fix a BPF sockmap race condition which could trigger a NULL pointer
   dereference in sock_map_link_update_prog (Cong Wang)

 - Fix tcp_bpf_recvmsg_parser to retrieve seq_copied from tcp_sk under
   the socket lock (Jiayuan Chen)

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf, test_run: Fix LIVE_FRAME frame update after a page has been recycled
  selftests/bpf: Add three test cases for bits_iter
  bpf: Use __u64 to save the bits in bits iterator
  bpf: Check the validity of nr_words in bpf_iter_bits_new()
  bpf: Add bpf_mem_alloc_check_size() helper
  bpf: Free dynamically allocated bits in bpf_iter_bits_destroy()
  bpf: disallow 40-bytes extra stack for bpf_fastcall patterns
  selftests/bpf: Add test for trie_get_next_key()
  bpf: Fix out-of-bounds write in trie_get_next_key()
  selftests/bpf: Test with a very short loop
  bpf: Force checkpoint when jmp history is too long
  bpf: fix filed access without lock
  sock_map: fix a NULL pointer dereference in sock_map_link_update_prog()
2024-10-31 14:56:19 -10:00
Linus Torvalds
90602c251c Including fixes from WiFi, bluetooth and netfilter.
No known new regressions outstanding.
 
 Current release - regressions:
 
   - wifi: mt76: do not increase mcu skb refcount if retry is not supported
 
 Current release - new code bugs:
 
   - wifi:
     - rtw88: fix the RX aggregation in USB 3 mode
     - mac80211: fix memory corruption bug in struct ieee80211_chanctx
 
 Previous releases - regressions:
 
   - sched:
     - stop qdisc_tree_reduce_backlog on TC_H_ROOT
     - sch_api: fix xa_insert() error path in tcf_block_get_ext()
 
   - wifi:
     - revert "wifi: iwlwifi: remove retry loops in start"
     - cfg80211: clear wdev->cqm_config pointer on free
 
   - netfilter: fix potential crash in nf_send_reset6()
 
   - ip_tunnel: fix suspicious RCU usage warning in ip_tunnel_find()
 
   - bluetooth: fix null-ptr-deref in hci_read_supported_codecs
 
   - eth: mlxsw: add missing verification before pushing Tx header
 
   - eth: hns3: fixed hclge_fetch_pf_reg accesses bar space out of bounds issue
 
 Previous releases - always broken:
 
   - wifi: mac80211: do not pass a stopped vif to the driver in .get_txpower
 
   - netfilter: sanitize offset and length before calling skb_checksum()
 
   - core:
     - fix crash when config small gso_max_size/gso_ipv4_max_size
     - skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension
 
   - mptcp: protect sched with rcu_read_lock
 
   - eth: ice: fix crash on probe for DPLL enabled E810 LOM
 
   - eth: macsec: fix use-after-free while sending the offloading packet
 
   - eth: stmmac: fix unbalanced DMA map/unmap for non-paged SKB data
 
   - eth: hns3: fix kernel crash when 1588 is sent on HIP08 devices
 
   - eth: mtk_wed: fix path of MT7988 WO firmware
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEEg1AjqC77wbdLX2LbKSR5jcyPE6QFAmcjfLUSHHBhYmVuaUBy
 ZWRoYXQuY29tAAoJECkkeY3MjxOkONUP/35Vf0++xmZC12pvpL88B5RDqh9vH4Tv
 mYMIBUJNzXQhPoC27gGdY2v4U2ntVfbhFXVyYDJAVl5gwaCZkYufffrsBPqKBFBA
 tQnNpy+A2F+h4rRcTmugYoDdocwCK3qaAjZnF69SJ//6dtahorhOitdMoYbM2Vpj
 nNDWVPiN4pdIUBa+HrDeZ7f+Hou/i5q+mwXTh3/FZrJTWDdMfrFTSM3MMvKv+Fwk
 VoV7QwrR1APVjzgJmYujnil84d4D7etxHIgHFIvASJ5AgSZwnwVYWDfgTAalCD8a
 aoRtDvOZYJfVmRaitAFQd1tRrWn/Sk/QLqUyVfH8rZrGv3n/SEihZ00EtodOzAV4
 31DSdpipdopfht5pFBN1o/VwvAWx2s34uXL1/L8eQWbMLOp4lQoqXoHbQ6yDac2p
 L6ESQH/DY3dMTsKgpkpUm7w4RzutoI3QXpoxlWO2KIwNcawiyVcdKKlKvfFgBQZr
 cGHG/Nzp6P6y9BiX36Rq3I7QKz/GjZN9zPe+3kPX99C2/UoO6St2yPBPLdh+BT2a
 3cqq7ypkxvKtp5EByUjTRQwJZDsD8yY3VWTQN7GYAae0AWJlY8hET05tZEJmwWF8
 TFKdme6lAN4XxNunEVQmUG93kuQRHJkPsN6pRhqGdOv/yUOxJT+meWBVJfMBQCq/
 70L0e6WiIJUe
 =3oi9
 -----END PGP SIGNATURE-----

Merge tag 'net-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from WiFi, bluetooth and netfilter.

  No known new regressions outstanding.

  Current release - regressions:

   - wifi: mt76: do not increase mcu skb refcount if retry is not
     supported

  Current release - new code bugs:

   - wifi:
      - rtw88: fix the RX aggregation in USB 3 mode
      - mac80211: fix memory corruption bug in struct ieee80211_chanctx

  Previous releases - regressions:

   - sched:
      - stop qdisc_tree_reduce_backlog on TC_H_ROOT
      - sch_api: fix xa_insert() error path in tcf_block_get_ext()

   - wifi:
      - revert "wifi: iwlwifi: remove retry loops in start"
      - cfg80211: clear wdev->cqm_config pointer on free

   - netfilter: fix potential crash in nf_send_reset6()

   - ip_tunnel: fix suspicious RCU usage warning in ip_tunnel_find()

   - bluetooth: fix null-ptr-deref in hci_read_supported_codecs

   - eth: mlxsw: add missing verification before pushing Tx header

   - eth: hns3: fixed hclge_fetch_pf_reg accesses bar space out of
     bounds issue

  Previous releases - always broken:

   - wifi: mac80211: do not pass a stopped vif to the driver in
     .get_txpower

   - netfilter: sanitize offset and length before calling skb_checksum()

   - core:
      - fix crash when config small gso_max_size/gso_ipv4_max_size
      - skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension

   - mptcp: protect sched with rcu_read_lock

   - eth: ice: fix crash on probe for DPLL enabled E810 LOM

   - eth: macsec: fix use-after-free while sending the offloading packet

   - eth: stmmac: fix unbalanced DMA map/unmap for non-paged SKB data

   - eth: hns3: fix kernel crash when 1588 is sent on HIP08 devices

   - eth: mtk_wed: fix path of MT7988 WO firmware"

* tag 'net-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (70 commits)
  net: hns3: fix kernel crash when 1588 is sent on HIP08 devices
  net: hns3: fixed hclge_fetch_pf_reg accesses bar space out of bounds issue
  net: hns3: initialize reset_timer before hclgevf_misc_irq_init()
  net: hns3: don't auto enable misc vector
  net: hns3: Resolved the issue that the debugfs query result is inconsistent.
  net: hns3: fix missing features due to dev->features configuration too early
  net: hns3: fixed reset failure issues caused by the incorrect reset type
  net: hns3: add sync command to sync io-pgtable
  net: hns3: default enable tx bounce buffer when smmu enabled
  netfilter: nft_payload: sanitize offset and length before calling skb_checksum()
  net: ethernet: mtk_wed: fix path of MT7988 WO firmware
  selftests: forwarding: Add IPv6 GRE remote change tests
  mlxsw: spectrum_ipip: Fix memory leak when changing remote IPv6 address
  mlxsw: pci: Sync Rx buffers for device
  mlxsw: pci: Sync Rx buffers for CPU
  mlxsw: spectrum_ptp: Add missing verification before pushing Tx header
  net: skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension
  Bluetooth: hci: fix null-ptr-deref in hci_read_supported_codecs
  netfilter: nf_reject_ipv6: fix potential crash in nf_send_reset6()
  netfilter: Fix use-after-free in get_info()
  ...
2024-10-31 12:39:58 -10:00
Dave Airlie
989c5b9051 Short summary of fixes pull:
ivpu:
 - Fix firewall IRQ handling
 
 panthor:
 - Fix firmware initialization wrt page sizes
 - Fix handling and reporting of dead job groups
 
 sched:
 - Guarantee forward progress via WC_MEM_RECLAIM
 
 tests:
 - Fix memory leak in drm_display_mode_from_cea_vic()
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEchf7rIzpz2NEoWjlaA3BHVMLeiMFAmcjl28ACgkQaA3BHVML
 eiMePgf/aO8pHJDeUzDzbQ4FnT38RRlwpBCG6Z8BYBHU7QsSfrZ8f99quHArK9Pq
 DwSWkb44YgEETaerfXO4QizhmVFVcM9CnDKJzLg598dqfo9mAXu3mnXS8UKnEA43
 wz9KAkdkl7P+fsGfvYK8iN/rSeHISQvh2XU5XF/tp7UNtc0HHwfvK/+MC+rkPo/z
 cwOErNUXEQFfW0f0Y5g2bvcIB5xykdY7JOtHVbVe6Y0fuw66wuznE/vexYSbgoE+
 taJhQTNuz6E8rWKyNUR4PLvggYj5MU57uk94dWx34AFXKDS6TBiZph1auQctXldu
 6caGwJkcIsCmCy0n+iWoiNahH10NRA==
 =m9+F
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-fixes-2024-10-31' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

Short summary of fixes pull:

ivpu:
- Fix firewall IRQ handling

panthor:
- Fix firmware initialization wrt page sizes
- Fix handling and reporting of dead job groups

sched:
- Guarantee forward progress via WC_MEM_RECLAIM

tests:
- Fix memory leak in drm_display_mode_from_cea_vic()

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241031144348.GA7826@linux-2.fritz.box
2024-11-01 06:08:24 +10:00
Jinjie Ruan
caa714f866
drm/tests: helpers: Add helper for drm_display_mode_from_cea_vic()
As Maxime suggested, add a new helper
drm_kunit_display_mode_from_cea_vic(), it can replace the direct call
of drm_display_mode_from_cea_vic(), and it will help solving
the `mode` memory leaks.

Acked-by: Maxime Ripard <mripard@kernel.org>
Suggested-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241030023504.530425-2-ruanjinjie@huawei.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
2024-10-31 10:31:34 +01:00
Yu Zhao
9d08ec41a0 mm: allow set/clear page_type again
Some page flags (page->flags) were converted to page types
(page->page_types).  A recent example is PG_hugetlb.

From the exclusive writer's perspective, e.g., a thread doing
__folio_set_hugetlb(), there is a difference between the page flag and
type APIs: the former allows the same non-atomic operation to be repeated
whereas the latter does not.  For example, calling __folio_set_hugetlb()
twice triggers VM_BUG_ON_FOLIO(), since the second call expects the type
(PG_hugetlb) not to be set previously.

Using add_hugetlb_folio() as an example, it calls __folio_set_hugetlb() in
the following error-handling path.  And when that happens, it triggers the
aforementioned VM_BUG_ON_FOLIO().

  if (folio_test_hugetlb(folio)) {
    rc = hugetlb_vmemmap_restore_folio(h, folio);
    if (rc) {
      spin_lock_irq(&hugetlb_lock);
      add_hugetlb_folio(h, folio, false);
      ...

It is possible to make hugeTLB comply with the new requirements from the
page type API.  However, a straightforward fix would be to just allow the
same page type to be set or cleared again inside the API, to avoid any
changes to its callers.

Link: https://lkml.kernel.org/r/20241020042212.296781-1-yuzhao@google.com
Fixes: d99e3140a4 ("mm: turn folio_test_hugetlb into a PageType")
Signed-off-by: Yu Zhao <yuzhao@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-10-30 20:14:12 -07:00
Kairui Song
5168a68eb7 mm, swap: avoid over reclaim of full clusters
When running low on usable slots, cluster allocator will try to reclaim
the full clusters aggressively to reclaim HAS_CACHE slots.  This
guarantees that as long as there are any usable slots, HAS_CACHE or not,
the swap device will be usable and workload won't go OOM early.

Before the cluster allocator, swap allocator fails easily if device is
filled up with reclaimable HAS_CACHE slots.  Which can be easily
reproduced with following simple program:

    #include <stdio.h>
    #include <string.h>
    #include <linux/mman.h>
    #include <sys/mman.h>
    #define SIZE 8192UL * 1024UL * 1024UL
    int main(int argc, char **argv) {
        long tmp;
        char *p = mmap(NULL, SIZE, PROT_READ | PROT_WRITE,
               MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
        memset(p, 0, SIZE);
        madvise(p, SIZE, MADV_PAGEOUT);
        for (unsigned long i = 0; i < SIZE; ++i)
            tmp += p[i];
        getchar(); /* Pause */
        return 0;
    }

Setup an 8G non ramdisk swap, the first run of the program will swapout 8G
ram successfully.  But run same program again after the first run paused,
the second run can't swapout all 8G memory as now half of the swap device
is pinned by HAS_CACHE.  There was a random scan in the old allocator that
may reclaim part of the HAS_CACHE by luck, but it's unreliable.

The new allocator's added reclaim of full clusters when device is low on
usable slots.  But when multiple CPUs are seeing the device is low on
usable slots at the same time, they ran into a thundering herd problem.

This is an observable problem on large machine with mass parallel
workload, as full cluster reclaim is slower on large swap device and
higher number of CPUs will also make things worse.

Testing using a 128G ZRAM on a 48c96t system.  When the swap device is
very close to full (eg.  124G / 128G), running build linux kernel with
make -j96 in a 1G memory cgroup will hung (not a softlockup though)
spinning in full cluster reclaim for about ~5min before go OOM.

To solve this, split the full reclaim into two parts:

- Instead of do a synchronous aggressively reclaim when device is low,
  do only one aggressively reclaim when device is strictly full with a
  kworker. This still ensures in worst case the device won't be unusable
  because of HAS_CACHE slots.

- To avoid allocation (especially higher order) suffer from HAS_CACHE
  filling up clusters and kworker not responsive enough, do one synchronous
  scan every time the free list is drained, and only scan one cluster. This
  is kind of similar to the random reclaim before, keeps the full clusters
  rotated and has a minimal latency. This should provide a fair reclaim
  strategy suitable for most workloads.

Link: https://lkml.kernel.org/r/20241022175512.10398-1-ryncsn@gmail.com
Fixes: 2cacbdfdee ("mm: swap: add a adaptive full cluster cache reclaim")
Signed-off-by: Kairui Song <kasong@tencent.com>
Cc: Barry Song <v-songbaohua@oppo.com>
Cc: Chris Li <chrisl@kernel.org>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-10-30 20:14:11 -07:00
Hao Ge
f4657e16e7 mm/codetag: fix null pointer check logic for ref and tag
When we compile and load lib/slub_kunit.c,it will cause a panic.

The root cause is that __kmalloc_cache_noprof was directly called instead
of kmem_cache_alloc,which resulted in no alloc_tag being allocated.This
caused current->alloc_tag to be null,leading to a null pointer dereference
in alloc_tag_ref_set.

Despite the fact that my colleague Pei Xiao will later fix the code in
slub_kunit.c,we still need fix null pointer check logic for ref and tag to
avoid panic caused by a null pointer dereference.

Here is the log for the panic:

[   74.779373][ T2158] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020
[   74.780130][ T2158] Mem abort info:
[   74.780406][ T2158]   ESR = 0x0000000096000004
[   74.780756][ T2158]   EC = 0x25: DABT (current EL), IL = 32 bits
[   74.781225][ T2158]   SET = 0, FnV = 0
[   74.781529][ T2158]   EA = 0, S1PTW = 0
[   74.781836][ T2158]   FSC = 0x04: level 0 translation fault
[   74.782288][ T2158] Data abort info:
[   74.782577][ T2158]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
[   74.783068][ T2158]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0
[   74.783533][ T2158]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[   74.784010][ T2158] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000105f34000
[   74.784586][ T2158] [0000000000000020] pgd=0000000000000000, p4d=0000000000000000
[   74.785293][ T2158] Internal error: Oops: 0000000096000004 [#1] SMP
[   74.785805][ T2158] Modules linked in: slub_kunit kunit ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle 4
[   74.790661][ T2158] CPU: 0 UID: 0 PID: 2158 Comm: kunit_try_catch Kdump: loaded Tainted: G        W        N 6.12.0-rc3+ #2
[   74.791535][ T2158] Tainted: [W]=WARN, [N]=TEST
[   74.791889][ T2158] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
[   74.792479][ T2158] pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   74.793101][ T2158] pc : alloc_tagging_slab_alloc_hook+0x120/0x270
[   74.793607][ T2158] lr : alloc_tagging_slab_alloc_hook+0x120/0x270
[   74.794095][ T2158] sp : ffff800084d33cd0
[   74.794418][ T2158] x29: ffff800084d33cd0 x28: 0000000000000000 x27: 0000000000000000
[   74.795095][ T2158] x26: 0000000000000000 x25: 0000000000000012 x24: ffff80007b30e314
[   74.795822][ T2158] x23: ffff000390ff6f10 x22: 0000000000000000 x21: 0000000000000088
[   74.796555][ T2158] x20: ffff000390285840 x19: fffffd7fc3ef7830 x18: ffffffffffffffff
[   74.797283][ T2158] x17: ffff8000800e63b4 x16: ffff80007b33afc4 x15: ffff800081654c00
[   74.798011][ T2158] x14: 0000000000000000 x13: 205d383531325420 x12: 5b5d383734363537
[   74.798744][ T2158] x11: ffff800084d337e0 x10: 000000000000005d x9 : 00000000ffffffd0
[   74.799476][ T2158] x8 : 7f7f7f7f7f7f7f7f x7 : ffff80008219d188 x6 : c0000000ffff7fff
[   74.800206][ T2158] x5 : ffff0003fdbc9208 x4 : ffff800081edd188 x3 : 0000000000000001
[   74.800932][ T2158] x2 : 0beaa6dee1ac5a00 x1 : 0beaa6dee1ac5a00 x0 : ffff80037c2cb000
[   74.801656][ T2158] Call trace:
[   74.801954][ T2158]  alloc_tagging_slab_alloc_hook+0x120/0x270
[   74.802494][ T2158]  __kmalloc_cache_noprof+0x148/0x33c
[   74.802976][ T2158]  test_kmalloc_redzone_access+0x4c/0x104 [slub_kunit]
[   74.803607][ T2158]  kunit_try_run_case+0x70/0x17c [kunit]
[   74.804124][ T2158]  kunit_generic_run_threadfn_adapter+0x2c/0x4c [kunit]
[   74.804768][ T2158]  kthread+0x10c/0x118
[   74.805141][ T2158]  ret_from_fork+0x10/0x20
[   74.805540][ T2158] Code: b9400a80 11000400 b9000a80 97ffd858 (f94012d3)
[   74.806176][ T2158] SMP: stopping secondary CPUs
[   74.808130][ T2158] Starting crashdump kernel...

Link: https://lkml.kernel.org/r/20241020070819.307944-1-hao.ge@linux.dev
Fixes: e0a955bf7f ("mm/codetag: add pgalloc_tag_copy()")
Signed-off-by: Hao Ge <gehao@kylinos.cn>
Acked-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Yu Zhao <yuzhao@google.com>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-10-30 20:14:10 -07:00
Linus Torvalds
0fc810ae3a x86/uaccess: Avoid barrier_nospec() in 64-bit copy_from_user()
The barrier_nospec() in 64-bit copy_from_user() is slow. Instead use
pointer masking to force the user pointer to all 1's for an invalid
address.

The kernel test robot reports a 2.6% improvement in the per_thread_ops
benchmark [1].

This is a variation on a patch originally by Josh Poimboeuf [2].

Link: https://lore.kernel.org/202410281344.d02c72a2-oliver.sang@intel.com [1]
Link: https://lore.kernel.org/5b887fe4c580214900e21f6c61095adf9a142735.1730166635.git.jpoimboe@kernel.org [2]
Tested-and-reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-10-30 11:38:10 -10:00
Hou Tao
62a898b07b bpf: Add bpf_mem_alloc_check_size() helper
Introduce bpf_mem_alloc_check_size() to check whether the allocation
size exceeds the limitation for the kmalloc-equivalent allocator. The
upper limit for percpu allocation is LLIST_NODE_SZ bytes larger than
non-percpu allocation, so a percpu argument is added to the helper.

The helper will be used in the following patch to check whether the size
parameter passed to bpf_mem_alloc() is too big.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20241030100516.3633640-3-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-10-30 12:13:46 -07:00
Ido Schimmel
ad4a3ca6a8 ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow()
There are code paths from which the function is called without holding
the RCU read lock, resulting in a suspicious RCU usage warning [1].

Fix by using l3mdev_master_upper_ifindex_by_index() which will acquire
the RCU read lock before calling
l3mdev_master_upper_ifindex_by_index_rcu().

[1]
WARNING: suspicious RCU usage
6.12.0-rc3-custom-gac8f72681cf2 #141 Not tainted
-----------------------------
net/core/dev.c:876 RCU-list traversed in non-reader section!!

other info that might help us debug this:

rcu_scheduler_active = 2, debug_locks = 1
1 lock held by ip/361:
 #0: ffffffff86fc7cb0 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x377/0xf60

stack backtrace:
CPU: 3 UID: 0 PID: 361 Comm: ip Not tainted 6.12.0-rc3-custom-gac8f72681cf2 #141
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Call Trace:
 <TASK>
 dump_stack_lvl+0xba/0x110
 lockdep_rcu_suspicious.cold+0x4f/0xd6
 dev_get_by_index_rcu+0x1d3/0x210
 l3mdev_master_upper_ifindex_by_index_rcu+0x2b/0xf0
 ip_tunnel_bind_dev+0x72f/0xa00
 ip_tunnel_newlink+0x368/0x7a0
 ipgre_newlink+0x14c/0x170
 __rtnl_newlink+0x1173/0x19c0
 rtnl_newlink+0x6c/0xa0
 rtnetlink_rcv_msg+0x3cc/0xf60
 netlink_rcv_skb+0x171/0x450
 netlink_unicast+0x539/0x7f0
 netlink_sendmsg+0x8c1/0xd80
 ____sys_sendmsg+0x8f9/0xc20
 ___sys_sendmsg+0x197/0x1e0
 __sys_sendmsg+0x122/0x1f0
 do_syscall_64+0xbb/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Fixes: db53cd3d88 ("net: Handle l3mdev in ip_tunnel_init_flow")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20241022063822.462057-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-10-29 11:12:25 -07:00
Pierre Gondois
1c10941e34 ACPI: CPPC: Make rmw_lock a raw_spin_lock
The following BUG was triggered:

=============================
[ BUG: Invalid wait context ]
6.12.0-rc2-XXX #406 Not tainted
-----------------------------
kworker/1:1/62 is trying to lock:
ffffff8801593030 (&cpc_ptr->rmw_lock){+.+.}-{3:3}, at: cpc_write+0xcc/0x370
other info that might help us debug this:
context-{5:5}
2 locks held by kworker/1:1/62:
  #0: ffffff897ef5ec98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2c/0x50
  #1: ffffff880154e238 (&sg_policy->update_lock){....}-{2:2}, at: sugov_update_shared+0x3c/0x280
stack backtrace:
CPU: 1 UID: 0 PID: 62 Comm: kworker/1:1 Not tainted 6.12.0-rc2-g9654bd3e8806 #406
Workqueue:  0x0 (events)
Call trace:
  dump_backtrace+0xa4/0x130
  show_stack+0x20/0x38
  dump_stack_lvl+0x90/0xd0
  dump_stack+0x18/0x28
  __lock_acquire+0x480/0x1ad8
  lock_acquire+0x114/0x310
  _raw_spin_lock+0x50/0x70
  cpc_write+0xcc/0x370
  cppc_set_perf+0xa0/0x3a8
  cppc_cpufreq_fast_switch+0x40/0xc0
  cpufreq_driver_fast_switch+0x4c/0x218
  sugov_update_shared+0x234/0x280
  update_load_avg+0x6ec/0x7b8
  dequeue_entities+0x108/0x830
  dequeue_task_fair+0x58/0x408
  __schedule+0x4f0/0x1070
  schedule+0x54/0x130
  worker_thread+0xc0/0x2e8
  kthread+0x130/0x148
  ret_from_fork+0x10/0x20

sugov_update_shared() locks a raw_spinlock while cpc_write() locks a
spinlock.

To have a correct wait-type order, update rmw_lock to a raw spinlock and
ensure that interrupts will be disabled on the CPU holding it.

Fixes: 60949b7b80 ("ACPI: CPPC: Fix MASK_VAL() usage")
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Link: https://patch.msgid.link/20241028125657.1271512-1-pierre.gondois@arm.com
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-10-29 12:56:19 +01:00
Lorenzo Stoakes
985da552a9 fork: only invoke khugepaged, ksm hooks if no error
There is no reason to invoke these hooks early against an mm that is in an
incomplete state.

The change in commit d240629148 ("fork: use __mt_dup() to duplicate
maple tree in dup_mmap()") makes this more pertinent as we may be in a
state where entries in the maple tree are not yet consistent.

Their placement early in dup_mmap() only appears to have been meaningful
for early error checking, and since functionally it'd require a very small
allocation to fail (in practice 'too small to fail') that'd only occur in
the most dire circumstances, meaning the fork would fail or be OOM'd in
any case.

Since both khugepaged and KSM tracking are there to provide optimisations
to memory performance rather than critical functionality, it doesn't
really matter all that much if, under such dire memory pressure, we fail
to register an mm with these.

As a result, we follow the example of commit d2081b2bf8 ("mm:
khugepaged: make khugepaged_enter() void function") and make ksm_fork() a
void function also.

We only expose the mm to these functions once we are done with them and
only if no error occurred in the fork operation.

Link: https://lkml.kernel.org/r/e0cb8b840c9d1d5a6e84d4f8eff5f3f2022aa10c.1729014377.git.lorenzo.stoakes@oracle.com
Fixes: d240629148 ("fork: use __mt_dup() to duplicate maple tree in dup_mmap()")
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reported-by: Jann Horn <jannh@google.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Jann Horn <jannh@google.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Linus Torvalds <torvalds@linuxfoundation.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-10-28 21:40:39 -07:00
Lorenzo Stoakes
f64e67e5d3 fork: do not invoke uffd on fork if error occurs
Patch series "fork: do not expose incomplete mm on fork".

During fork we may place the virtual memory address space into an
inconsistent state before the fork operation is complete.

In addition, we may encounter an error during the fork operation that
indicates that the virtual memory address space is invalidated.

As a result, we should not be exposing it in any way to external machinery
that might interact with the mm or VMAs, machinery that is not designed to
deal with incomplete state.

We specifically update the fork logic to defer khugepaged and ksm to the
end of the operation and only to be invoked if no error arose, and
disallow uffd from observing fork events should an error have occurred.


This patch (of 2):

Currently on fork we expose the virtual address space of a process to
userland unconditionally if uffd is registered in VMAs, regardless of
whether an error arose in the fork.

This is performed in dup_userfaultfd_complete() which is invoked
unconditionally, and performs two duties - invoking registered handlers
for the UFFD_EVENT_FORK event via dup_fctx(), and clearing down
userfaultfd_fork_ctx objects established in dup_userfaultfd().

This is problematic, because the virtual address space may not yet be
correctly initialised if an error arose.

The change in commit d240629148 ("fork: use __mt_dup() to duplicate
maple tree in dup_mmap()") makes this more pertinent as we may be in a
state where entries in the maple tree are not yet consistent.

We address this by, on fork error, ensuring that we roll back state that
we would otherwise expect to clean up through the event being handled by
userland and perform the memory freeing duty otherwise performed by
dup_userfaultfd_complete().

We do this by implementing a new function, dup_userfaultfd_fail(), which
performs the same loop, only decrementing reference counts.

Note that we perform mmgrab() on the parent and child mm's, however
userfaultfd_ctx_put() will mmdrop() this once the reference count drops to
zero, so we will avoid memory leaks correctly here.

Link: https://lkml.kernel.org/r/cover.1729014377.git.lorenzo.stoakes@oracle.com
Link: https://lkml.kernel.org/r/d3691d58bb58712b6fb3df2be441d175bd3cdf07.1729014377.git.lorenzo.stoakes@oracle.com
Fixes: d240629148 ("fork: use __mt_dup() to duplicate maple tree in dup_mmap()")
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reported-by: Jann Horn <jannh@google.com>
Reviewed-by: Jann Horn <jannh@google.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Linus Torvalds <torvalds@linuxfoundation.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-10-28 21:40:38 -07:00
Benjamin Segall
b5413156ba posix-cpu-timers: Clear TICK_DEP_BIT_POSIX_TIMER on clone
When cloning a new thread, its posix_cputimers are not inherited, and
are cleared by posix_cputimers_init(). However, this does not clear the
tick dependency it creates in tsk->tick_dep_mask, and the handler does
not reach the code to clear the dependency if there were no timers to
begin with.

Thus if a thread has a cputimer running before clone/fork, all
descendants will prevent nohz_full unless they create a cputimer of
their own.

Fix this by entirely clearing the tick_dep_mask in copy_process().
(There is currently no inherited state that needs a tick dependency)

Process-wide timers do not have this problem because fork does not copy
signal_struct as a baseline, it creates one from scratch.

Fixes: b78783000d ("posix-cpu-timers: Migrate to use new tick dependency mask model")
Signed-off-by: Ben Segall <bsegall@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/xm26o737bq8o.fsf@google.com
2024-10-27 10:36:04 +01:00
Dan Williams
101c268bd2 cxl/port: Fix use-after-free, permit out-of-order decoder shutdown
In support of investigating an initialization failure report [1],
cxl_test was updated to register mock memory-devices after the mock
root-port/bus device had been registered. That led to cxl_test crashing
with a use-after-free bug with the following signature:

    cxl_port_attach_region: cxl region3: cxl_host_bridge.0:port3 decoder3.0 add: mem0:decoder7.0 @ 0 next: cxl_switch_uport.0 nr_eps: 1 nr_targets: 1
    cxl_port_attach_region: cxl region3: cxl_host_bridge.0:port3 decoder3.0 add: mem4:decoder14.0 @ 1 next: cxl_switch_uport.0 nr_eps: 2 nr_targets: 1
    cxl_port_setup_targets: cxl region3: cxl_switch_uport.0:port6 target[0] = cxl_switch_dport.0 for mem0:decoder7.0 @ 0
1)  cxl_port_setup_targets: cxl region3: cxl_switch_uport.0:port6 target[1] = cxl_switch_dport.4 for mem4:decoder14.0 @ 1
    [..]
    cxld_unregister: cxl decoder14.0:
    cxl_region_decode_reset: cxl_region region3:
    mock_decoder_reset: cxl_port port3: decoder3.0 reset
2)  mock_decoder_reset: cxl_port port3: decoder3.0: out of order reset, expected decoder3.1
    cxl_endpoint_decoder_release: cxl decoder14.0:
    [..]
    cxld_unregister: cxl decoder7.0:
3)  cxl_region_decode_reset: cxl_region region3:
    Oops: general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6bc3: 0000 [#1] PREEMPT SMP PTI
    [..]
    RIP: 0010:to_cxl_port+0x8/0x60 [cxl_core]
    [..]
    Call Trace:
     <TASK>
     cxl_region_decode_reset+0x69/0x190 [cxl_core]
     cxl_region_detach+0xe8/0x210 [cxl_core]
     cxl_decoder_kill_region+0x27/0x40 [cxl_core]
     cxld_unregister+0x5d/0x60 [cxl_core]

At 1) a region has been established with 2 endpoint decoders (7.0 and
14.0). Those endpoints share a common switch-decoder in the topology
(3.0). At teardown, 2), decoder14.0 is the first to be removed and hits
the "out of order reset case" in the switch decoder. The effect though
is that region3 cleanup is aborted leaving it in-tact and
referencing decoder14.0. At 3) the second attempt to teardown region3
trips over the stale decoder14.0 object which has long since been
deleted.

The fix here is to recognize that the CXL specification places no
mandate on in-order shutdown of switch-decoders, the driver enforces
in-order allocation, and hardware enforces in-order commit. So, rather
than fail and leave objects dangling, always remove them.

In support of making cxl_region_decode_reset() always succeed,
cxl_region_invalidate_memregion() failures are turned into warnings.
Crashing the kernel is ok there since system integrity is at risk if
caches cannot be managed around physical address mutation events like
CXL region destruction.

A new device_for_each_child_reverse_from() is added to cleanup
port->commit_end after all dependent decoders have been disabled. In
other words if decoders are allocated 0->1->2 and disabled 1->2->0 then
port->commit_end only decrements from 2 after 2 has been disabled, and
it decrements all the way to zero since 1 was disabled previously.

Link: http://lore.kernel.org/20241004212504.1246-1-gourry@gourry.net [1]
Cc: stable@vger.kernel.org
Fixes: 176baefb2e ("cxl/hdm: Commit decoder state to hardware")
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Alison Schofield <alison.schofield@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Zijun Hu <quic_zijuhu@quicinc.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/172964782781.81806.17902885593105284330.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
2024-10-25 16:07:03 -05:00
Linus Torvalds
81dcc79758 fuse fixes for 6.12-rc5
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCZxu02AAKCRDh3BK/laaZ
 PLDHAPwMzz4c+wbqz8Qo2IEo3lxvgPjgzMNXQetCgZFKvxKRlwD+PaIeRixGwwmB
 ON3IsScZjROphzb+ofroUpj7lLEM7Ag=
 =9rYN
 -----END PGP SIGNATURE-----

Merge tag 'fuse-fixes-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

Pull fuse fixes from Miklos Szeredi:

 - Fix cached size after passthrough writes

   This fix needed a trivial change in the backing-file API, which
   resulted in some non-fuse files being touched.

 - Revert a commit meant as a cleanup but which triggered a WARNING

 - Remove a stray debug line left-over

* tag 'fuse-fixes-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: remove stray debug line
  Revert "fuse: move initialization of fuse_file to fuse_writepages() instead of in callback"
  fuse: update inode size after extending passthrough write
  fs: pass offset and result to backing_file end_write() callback
2024-10-25 11:41:18 -07:00
Linus Torvalds
86d6688e60 fbdev fixes for 6.12-rc5:
- Fix some build warnings and failures with CONFIG_FB_IOMEM_FOPS and
   CONFIG_FB_DEVICE
 - Remove the da8xx fbdev driver
 - Constify struct sbus_mmap_map and fix indentation warning
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQS86RI+GtKfB8BJu973ErUQojoPXwUCZxu/TwAKCRD3ErUQojoP
 XwV/AQC8Q0gNXLH2kx5pgtGwtSHkDJYG0NeMgyN4mUWuk7IEugEAhapxyU+7ZsEk
 ttpTmiNQU8z80SySPmmgy8/v5VSTpQg=
 =fh1y
 -----END PGP SIGNATURE-----

Merge tag 'fbdev-for-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev fixes from Helge Deller:

 - Fix some build warnings and failures with CONFIG_FB_IOMEM_FOPS and
   CONFIG_FB_DEVICE

 - Remove the da8xx fbdev driver

 - Constify struct sbus_mmap_map and fix indentation warning

* tag 'fbdev-for-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbdev: wm8505fb: select CONFIG_FB_IOMEM_FOPS
  fbdev: da8xx: remove the driver
  fbdev: Constify struct sbus_mmap_map
  fbdev: nvidiafb: fix inconsistent indentation warning
  fbdev: sstfb: Make CONFIG_FB_DEVICE optional
2024-10-25 10:51:58 -07:00
Linus Torvalds
01154cc30e sound fixes for 6.12-rc5
The majority of changes here are about ASoC.
 
 There are two core changes in ASoC (the bump of minimal topology
 ABI version and the fix for references of components in DAPM code),
 and others are mostly various device-specific fixes for SoundWire,
 AMD, Intel, SOF, Qualcomm and FSL, in addition to a few usual
 HD-audio quirks and fixes.
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAmcbWbMOHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE/YKxAAt4WhN/98T2y5RBZEpDyDrxFF3TGNhgHO61tv
 9zEpOpz2CR4vP7qbImTlzWZ8ehcbqQK3I3xlq/xsD8/nRacUyVO1XX3Zb+SlSYGp
 Ln6IFiLSnCuJKavEJtoWbEIsg+jhKQCvApq55Yxvxk/PO91Sehx+/LWa0ZeHbVrG
 ChJRXStBEfUu1eBQL/7oMPkXm7QJYzR3pE4eieom33I4wJXFRHrBtSR4Ldj1kpCJ
 GQKVqZVkUgFLLzHckJyHTswi2wX1w8H6FWTIQydqK8beHCCEBR3c3PzUQgI5QXwS
 Hfe2lyvOkK78eAPn8GdAAT1cMdMfAy/iLC78QDGhk117JACOzEU8mRWYS3Dh268a
 W8iiNYhnTRC/7M6OM+boD7IhCXADlA3wiEwV4n5BtqkjmXkNJDEWxMZrUyk6R/rO
 csEsARtue3ISClEnU0ih3Ebl3iHCUlzzCkG0bNPkMnw6dRtJyppg9LpBijt7Y6Ep
 DyaAGFBI5qMcOHIh6A35m8K3d9YwnqhAj/ZdmMLS34r8e96KdBNH4yKo7ftqqHXW
 eRDCDSjKdeWSfymutwV2jfVLR0e1C77ysL9z1MZgoRfLskjpET3Qp526hIBe+qoG
 TbGl5VLyZqhRmHwYxdDsAq+XbMm41eHJskg49iOIG3Cru1y30y0or2R1e9r10/eB
 Ue8Pb1w=
 =hhTD
 -----END PGP SIGNATURE-----

Merge tag 'sound-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "The majority of changes here are about ASoC.

  There are two core changes in ASoC (the bump of minimal topology ABI
  version and the fix for references of components in DAPM code), and
  others are mostly various device-specific fixes for SoundWire, AMD,
  Intel, SOF, Qualcomm and FSL, in addition to a few usual HD-audio
  quirks and fixes"

* tag 'sound-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (33 commits)
  ALSA: hda/realtek: Update default depop procedure
  ASoC: qcom: sc7280: Fix missing Soundwire runtime stream alloc
  ASoC: fsl_micfil: Add sample rate constraint
  ASoC: rt722-sdca: increase clk_stop_timeout to fix clock stop issue
  ALSA: hda/tas2781: select CRC32 instead of CRC32_SARWATE
  ALSA: hda/realtek: Add subwoofer quirk for Acer Predator G9-593
  ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()
  ASoC: fsl_micfil: Add a flag to distinguish with different volume control types
  ASoC: codecs: lpass-rx-macro: fix RXn(rx,n) macro for DSM_CTL and SEC7 regs
  ASoC: Change my e-mail to gmail
  ASoC: Intel: soc-acpi: lnl: Add match entry for TM2 laptops
  ASoC: amd: yc: Fix non-functional mic on ASUS E1404FA
  ASoC: SOF: Intel: hda: Always clean up link DMA during stop
  soundwire: intel_ace2x: Send PDI stream number during prepare
  ASoC: SOF: Intel: hda: Handle prepare without close for non-HDA DAI's
  ASoC: SOF: ipc4-topology: Do not set ALH node_id for aggregated DAIs
  MAINTAINERS: Update maintainer list for MICROCHIP ASOC, SSC and MCP16502 drivers
  ASoC: qcom: Select missing common Soundwire module code on SDM845
  ASoC: fsl_esai: change dev_warn to dev_dbg in irq handler
  ASoC: rsnd: Fix probe failure on HiHope boards due to endpoint parsing
  ...
2024-10-25 10:35:29 -07:00
David S. Miller
e31a8219fb wireless fixes for v6.12-rc5
The first set of wireless fixes for v6.12. We have been busy and have
 not been able to send this earlier, so there are more fixes than
 usual. The fixes are all over, both in stack and in drivers, but
 nothing special really standing out.
 -----BEGIN PGP SIGNATURE-----
 
 iQFFBAABCgAvFiEEiBjanGPFTz4PRfLobhckVSbrbZsFAmcWl7MRHGt2YWxvQGtl
 cm5lbC5vcmcACgkQbhckVSbrbZv0Qgf/fQJKXkGJkvozrbJATkKHfHKUOphIl4Y8
 /r3SlrsIL6qXZAUq5N+NH9vfUeKt5kkKG8Fc8yrJaygDLsV9v1LGiBSsb5eJ+PfM
 4fCOdzPSrWG984dLwsCK8UGEzfQ1G4d6HckwubUMimK2X/m6wx/99fenjMAQvdWO
 rjAJmpAkgoT0Fvf8GD3joMBKKjMFr2KT8tgbfvwpyr9cXAPZYf35+74Nl84UjHiP
 rGTGN++NQuPMsYyYIPPA+eMNUnlUVyDah+UVmzsMp27YUdKBKjx23kRH6tKM/46H
 dWqpqEV50xshlPaotHoFg9+4KRrxnxwvFtGTsnbvHcuSnkPBUusAvw==
 =l6SI
 -----END PGP SIGNATURE-----

Merge tag 'wireless-2024-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

wireless fixes for v6.12-rc5

The first set of wireless fixes for v6.12. We have been busy and have
not been able to send this earlier, so there are more fixes than
usual. The fixes are all over, both in stack and in drivers, but
nothing special really standing out.
2024-10-25 10:44:41 +01:00
Linus Torvalds
ae90f6a617 BPF fixes:
- Fix an out-of-bounds read in bpf_link_show_fdinfo for BPF
   sockmap link file descriptors (Hou Tao)
 
 - Fix BPF arm64 JIT's address emission with tag-based KASAN
   enabled reserving not enough size (Peter Collingbourne)
 
 - Fix BPF verifier do_misc_fixups patching for inlining of the
   bpf_get_branch_snapshot BPF helper (Andrii Nakryiko)
 
 - Fix a BPF verifier bug and reject BPF program write attempts
   into read-only marked BPF maps (Daniel Borkmann)
 
 - Fix perf_event_detach_bpf_prog error handling by removing an
   invalid check which would skip BPF program release (Jiri Olsa)
 
 - Fix memory leak when parsing mount options for the BPF
   filesystem (Hou Tao)
 
 Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
 -----BEGIN PGP SIGNATURE-----
 
 iIsEABYIADMWIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZxrAzxUcZGFuaWVsQGlv
 Z2VhcmJveC5uZXQACgkQ2yufC7HISIPcHwD8DnBSPlHX9OezMWCm8mjVx2Fd26W9
 /IaiW2tyOPtoSGIA/3hfgfLrxkb3Raoh0miQB2+FRrz9e+y7i8c4Q91mcUgJ
 =Hvht
 -----END PGP SIGNATURE-----

Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Pull bpf fixes from Daniel Borkmann:

 - Fix an out-of-bounds read in bpf_link_show_fdinfo for BPF sockmap
   link file descriptors (Hou Tao)

 - Fix BPF arm64 JIT's address emission with tag-based KASAN enabled
   reserving not enough size (Peter Collingbourne)

 - Fix BPF verifier do_misc_fixups patching for inlining of the
   bpf_get_branch_snapshot BPF helper (Andrii Nakryiko)

 - Fix a BPF verifier bug and reject BPF program write attempts into
   read-only marked BPF maps (Daniel Borkmann)

 - Fix perf_event_detach_bpf_prog error handling by removing an invalid
   check which would skip BPF program release (Jiri Olsa)

 - Fix memory leak when parsing mount options for the BPF filesystem
   (Hou Tao)

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf: Check validity of link->type in bpf_link_show_fdinfo()
  bpf: Add the missing BPF_LINK_TYPE invocation for sockmap
  bpf: fix do_misc_fixups() for bpf_get_branch_snapshot()
  bpf,perf: Fix perf_event_detach_bpf_prog error handling
  selftests/bpf: Add test for passing in uninit mtu_len
  selftests/bpf: Add test for writes to .rodata
  bpf: Remove MEM_UNINIT from skb/xdp MTU helpers
  bpf: Fix overloading of MEM_UNINIT's meaning
  bpf: Add MEM_WRITE attribute
  bpf: Preserve param->string when parsing mount options
  bpf, arm64: Fix address emission with tag-based KASAN enabled
2024-10-24 16:53:20 -07:00
Linus Torvalds
d44cd82264 Including fixes from netfiler, xfrm and bluetooth.
Current release - regressions:
 
   - posix-clock: Fix unbalanced locking in pc_clock_settime()
 
   - netfilter: fix typo causing some targets not to load on IPv6
 
 Current release - new code bugs:
 
   - xfrm: policy: remove last remnants of pernet inexact list
 
 Previous releases - regressions:
 
   - core: fix races in netdev_tx_sent_queue()/dev_watchdog()
 
   - bluetooth: fix UAF on sco_sock_timeout
 
   - eth: hv_netvsc: fix VF namespace also in synthetic NIC NETDEV_REGISTER event
 
   - eth: usbnet: fix name regression
 
   - eth: be2net: fix potential memory leak in be_xmit()
 
   - eth: plip: fix transmit path breakage
 
 Previous releases - always broken:
 
   - sched: deny mismatched skip_sw/skip_hw flags for actions created by classifiers
 
   - netfilter: bpf: must hold reference on net namespace
 
   - eth: virtio_net: fix integer overflow in stats
 
   - eth: bnxt_en: replace ptp_lock with irqsave variant
 
   - eth: octeon_ep: add SKB allocation failures handling in __octep_oq_process_rx()
 
 Misc:
 
   - MAINTAINERS: add Simon as an official reviewer
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEEg1AjqC77wbdLX2LbKSR5jcyPE6QFAmcaTkUSHHBhYmVuaUBy
 ZWRoYXQuY29tAAoJECkkeY3MjxOkW8kP/iYfaxQ8zR61wUU7bOcVUSnEADR9XQ1H
 Nta5Z0tDJprZv254XW3hYDzU0Iy3OgclRE1oewF5fQVLn6Sfg4U5awxRTNdJw7KV
 wj62ziAv/xht2W/4nBsNfYkOZaDAibItbKtxlkOhgCGXSrXBoS22IonKRqEv2HLV
 Gu0vAY/VI9YNvB5Z6SEKFmQp2bWfX79AChVT72shLBLakOCUHBavk/DOU56XH1Ci
 IRmU5Lt8ysXWxCTF91rPCAbMyuxBbIv6phIKPV2ALpRUd6ha5nBqcl0wcS7Y1E+/
 0XOV71zjcXFoE/6hc5W3/mC7jm+ipXKVJOnIkCcWq40p6kDVJJ+E1RWEr5JxGEyF
 FtnUCZ8iK/F3/jSalMras2z+AZ/CGtfHF9wAS3YfMGtOJJb/k4dCxAddp7UzD9O4
 yxAJhJ0DrVuplzwovL5owoJJXeRAMQeFydzHBYun5P8Sc9TtvviICi19fMgKGn4O
 eUQhjgZZY371sPnTDLDEw1Oqzs9qeaeV3S2dSeFJ98PQuPA5KVOf/R2/CptBIMi5
 +UNcqeXrlUeYSBW94pPioEVStZDrzax5RVKh/Jo1tTnKzbnWDOOKZqSVsGPMWXdO
 0aBlGuSsNe36VDg2C0QMxGk7+gXbKmk9U4+qVQH3KMpB8uqdAu5deMbTT6dfcwBV
 O/BaGiqoR4ak
 =dR3Q
 -----END PGP SIGNATURE-----

Merge tag 'net-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from netfiler, xfrm and bluetooth.

  Oddly this includes a fix for a posix clock regression; in our
  previous PR we included a change there as a pre-requisite for
  networking one. That fix proved to be buggy and requires the follow-up
  included here. Thomas suggested we should send it, given we sent the
  buggy patch.

  Current release - regressions:

   - posix-clock: Fix unbalanced locking in pc_clock_settime()

   - netfilter: fix typo causing some targets not to load on IPv6

  Current release - new code bugs:

   - xfrm: policy: remove last remnants of pernet inexact list

  Previous releases - regressions:

   - core: fix races in netdev_tx_sent_queue()/dev_watchdog()

   - bluetooth: fix UAF on sco_sock_timeout

   - eth: hv_netvsc: fix VF namespace also in synthetic NIC
     NETDEV_REGISTER event

   - eth: usbnet: fix name regression

   - eth: be2net: fix potential memory leak in be_xmit()

   - eth: plip: fix transmit path breakage

  Previous releases - always broken:

   - sched: deny mismatched skip_sw/skip_hw flags for actions created by
     classifiers

   - netfilter: bpf: must hold reference on net namespace

   - eth: virtio_net: fix integer overflow in stats

   - eth: bnxt_en: replace ptp_lock with irqsave variant

   - eth: octeon_ep: add SKB allocation failures handling in
     __octep_oq_process_rx()

  Misc:

   - MAINTAINERS: add Simon as an official reviewer"

* tag 'net-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (40 commits)
  net: dsa: mv88e6xxx: support 4000ps cycle counter period
  net: dsa: mv88e6xxx: read cycle counter period from hardware
  net: dsa: mv88e6xxx: group cycle counter coefficients
  net: usb: qmi_wwan: add Fibocom FG132 0x0112 composition
  hv_netvsc: Fix VF namespace also in synthetic NIC NETDEV_REGISTER event
  net: dsa: microchip: disable EEE for KSZ879x/KSZ877x/KSZ876x
  Bluetooth: ISO: Fix UAF on iso_sock_timeout
  Bluetooth: SCO: Fix UAF on sco_sock_timeout
  Bluetooth: hci_core: Disable works on hci_unregister_dev
  posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()
  r8169: avoid unsolicited interrupts
  net: sched: use RCU read-side critical section in taprio_dump()
  net: sched: fix use-after-free in taprio_change()
  net/sched: act_api: deny mismatched skip_sw/skip_hw flags for actions created by classifiers
  net: usb: usbnet: fix name regression
  mlxsw: spectrum_router: fix xa_store() error checking
  virtio_net: fix integer overflow in stats
  net: fix races in netdev_tx_sent_queue()/dev_watchdog()
  net: wwan: fix global oob in wwan_rtnl_policy
  netfilter: xtables: fix typo causing some targets not to load on IPv6
  ...
2024-10-24 16:43:50 -07:00