This adds the initial definition of the EXTENT_TREE_V2 incompat feature
flag. This also hides the support behind CONFIG_BTRFS_DEBUG.
THIS IS A IN DEVELOPMENT FORMAT CHANGE, DO NOT USE UNLESS YOU ARE A
DEVELOPER OR A TESTER.
The format is in flux and will be added in stages, any fs will need to
be re-made between updates to the format.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Merge misc fixes from David Howells:
"A set of patches for watch_queue filter issues noted by Jann. I've
added in a cleanup patch from Christophe Jaillet to convert to using
formal bitmap specifiers for the note allocation bitmap.
Also two filesystem fixes (afs and cachefiles)"
* emailed patches from David Howells <dhowells@redhat.com>:
cachefiles: Fix volume coherency attribute
afs: Fix potential thrashing in afs writeback
watch_queue: Make comment about setting ->defunct more accurate
watch_queue: Fix lack of barrier/sync/lock between post and read
watch_queue: Free the alloc bitmap when the watch_queue is torn down
watch_queue: Fix the alloc bitmap size to reflect notes allocated
watch_queue: Use the bitmap API when applicable
watch_queue: Fix to always request a pow-of-2 pipe ring size
watch_queue: Fix to release page in ->release()
watch_queue, pipe: Free watchqueue state after clearing pipe ring
watch_queue: Fix filter limit check
A network filesystem may set coherency data on a volume cookie, and if
given, cachefiles will store this in an xattr on the directory in the
cache corresponding to the volume.
The function that sets the xattr just stores the contents of the volume
coherency buffer directly into the xattr, with nothing added; the
checking function, on the other hand, has a cut'n'paste error whereby it
tries to interpret the xattr contents as would be the xattr on an
ordinary file (using the cachefiles_xattr struct). This results in a
failure to match the coherency data because the buffer ends up being
shifted by 18 bytes.
Fix this by defining a structure specifically for the volume xattr and
making both the setting and checking functions use it.
Since the volume coherency doesn't work if used, take the opportunity to
insert a reserved field for future use, set it to 0 and check that it is
0. Log mismatch through the appropriate tracepoint.
Note that this only affects cifs; 9p, afs, ceph and nfs don't use the
volume coherency data at the moment.
Fixes: 32e150037d ("fscache, cachefiles: Store the volume coherency data")
Reported-by: Rohith Surabattula <rohiths.msft@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: Steve French <smfrench@gmail.com>
cc: linux-cifs@vger.kernel.org
cc: linux-cachefs@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In watch_queue_set_filter(), there are a couple of places where we check
that the filter type value does not exceed what the type_filter bitmap
can hold. One place calculates the number of bits by:
if (tf[i].type >= sizeof(wfilter->type_filter) * 8)
which is fine, but the second does:
if (tf[i].type >= sizeof(wfilter->type_filter) * BITS_PER_LONG)
which is not. This can lead to a couple of out-of-bounds writes due to
a too-large type:
(1) __set_bit() on wfilter->type_filter
(2) Writing more elements in wfilter->filters[] than we allocated.
Fix this by just using the proper WATCH_TYPE__NR instead, which is the
number of types we actually know about.
The bug may cause an oops looking something like:
BUG: KASAN: slab-out-of-bounds in watch_queue_set_filter+0x659/0x740
Write of size 4 at addr ffff88800d2c66bc by task watch_queue_oob/611
...
Call Trace:
<TASK>
dump_stack_lvl+0x45/0x59
print_address_description.constprop.0+0x1f/0x150
...
kasan_report.cold+0x7f/0x11b
...
watch_queue_set_filter+0x659/0x740
...
__x64_sys_ioctl+0x127/0x190
do_syscall_64+0x43/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
Allocated by task 611:
kasan_save_stack+0x1e/0x40
__kasan_kmalloc+0x81/0xa0
watch_queue_set_filter+0x23a/0x740
__x64_sys_ioctl+0x127/0x190
do_syscall_64+0x43/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
The buggy address belongs to the object at ffff88800d2c66a0
which belongs to the cache kmalloc-32 of size 32
The buggy address is located 28 bytes inside of
32-byte region [ffff88800d2c66a0, ffff88800d2c66c0)
Fixes: c73be61ced ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
and ipsec.
Current release - regressions:
- Bluetooth: fix unbalanced unlock in set_device_flags()
- Bluetooth: fix not processing all entries on cmd_sync_work,
make connect with qualcomm and intel adapters reliable
- Revert "xfrm: state and policy should fail if XFRMA_IF_ID 0"
- xdp: xdp_mem_allocator can be NULL in trace_mem_connect()
- eth: ice: fix race condition and deadlock during interface enslave
Current release - new code bugs:
- tipc: fix incorrect order of state message data sanity check
Previous releases - regressions:
- esp: fix possible buffer overflow in ESP transformation
- dsa: unlock the rtnl_mutex when dsa_master_setup() fails
- phy: meson-gxl: fix interrupt handling in forced mode
- smsc95xx: ignore -ENODEV errors when device is unplugged
Previous releases - always broken:
- xfrm: fix tunnel mode fragmentation behavior
- esp: fix inter address family tunneling on GSO
- tipc: fix null-deref due to race when enabling bearer
- sctp: fix kernel-infoleak for SCTP sockets
- eth: macb: fix lost RX packet wakeup race in NAPI receive
- eth: intel stop disabling VFs due to PF error responses
- eth: bcmgenet: don't claim WOL when its not available
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bluetooth, and ipsec.
Current release - regressions:
- Bluetooth: fix unbalanced unlock in set_device_flags()
- Bluetooth: fix not processing all entries on cmd_sync_work, make
connect with qualcomm and intel adapters reliable
- Revert "xfrm: state and policy should fail if XFRMA_IF_ID 0"
- xdp: xdp_mem_allocator can be NULL in trace_mem_connect()
- eth: ice: fix race condition and deadlock during interface enslave
Current release - new code bugs:
- tipc: fix incorrect order of state message data sanity check
Previous releases - regressions:
- esp: fix possible buffer overflow in ESP transformation
- dsa: unlock the rtnl_mutex when dsa_master_setup() fails
- phy: meson-gxl: fix interrupt handling in forced mode
- smsc95xx: ignore -ENODEV errors when device is unplugged
Previous releases - always broken:
- xfrm: fix tunnel mode fragmentation behavior
- esp: fix inter address family tunneling on GSO
- tipc: fix null-deref due to race when enabling bearer
- sctp: fix kernel-infoleak for SCTP sockets
- eth: macb: fix lost RX packet wakeup race in NAPI receive
- eth: intel stop disabling VFs due to PF error responses
- eth: bcmgenet: don't claim WOL when its not available"
* tag 'net-5.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (50 commits)
xdp: xdp_mem_allocator can be NULL in trace_mem_connect().
ice: Fix race condition during interface enslave
net: phy: meson-gxl: improve link-up behavior
net: bcmgenet: Don't claim WOL when its not available
net: arc_emac: Fix use after free in arc_mdio_probe()
sctp: fix kernel-infoleak for SCTP sockets
net: phy: correct spelling error of media in documentation
net: phy: DP83822: clear MISR2 register to disable interrupts
gianfar: ethtool: Fix refcount leak in gfar_get_ts_info
selftests: pmtu.sh: Kill nettest processes launched in subshell.
selftests: pmtu.sh: Kill tcpdump processes launched by subshell.
NFC: port100: fix use-after-free in port100_send_complete
net/mlx5e: SHAMPO, reduce TIR indication
net/mlx5e: Lag, Only handle events from highest priority multipath entry
net/mlx5: Fix offloading with ESWITCH_IPV4_TTL_MODIFY_ENABLE
net/mlx5: Fix a race on command flush flow
net/mlx5: Fix size field in bufferx_reg struct
ax25: Fix NULL pointer dereference in ax25_kill_by_device
net: marvell: prestera: Add missing of_node_put() in prestera_switch_set_base_mac_addr
net: ethernet: lpc_eth: Handle error for clk_enable
...
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Merge tag 'xsa396-5.17-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Several Linux PV device frontends are using the grant table interfaces
for removing access rights of the backends in ways being subject to
race conditions, resulting in potential data leaks, data corruption by
malicious backends, and denial of service triggered by malicious
backends:
- blkfront, netfront, scsifront and the gntalloc driver are testing
whether a grant reference is still in use. If this is not the case,
they assume that a following removal of the granted access will
always succeed, which is not true in case the backend has mapped
the granted page between those two operations.
As a result the backend can keep access to the memory page of the
guest no matter how the page will be used after the frontend I/O
has finished. The xenbus driver has a similar problem, as it
doesn't check the success of removing the granted access of a
shared ring buffer.
- blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p,
kbdfront, and pvcalls are using a functionality to delay freeing a
grant reference until it is no longer in use, but the freeing of
the related data page is not synchronized with dropping the granted
access.
As a result the backend can keep access to the memory page even
after it has been freed and then re-used for a different purpose.
- netfront will fail a BUG_ON() assertion if it fails to revoke
access in the rx path.
This will result in a Denial of Service (DoS) situation of the
guest which can be triggered by the backend"
* tag 'xsa396-5.17-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/netfront: react properly to failing gnttab_end_foreign_access_ref()
xen/gnttab: fix gnttab_end_foreign_access() without page specified
xen/pvcalls: use alloc/free_pages_exact()
xen/9p: use alloc/free_pages_exact()
xen/usb: don't use gnttab_end_foreign_access() in xenhcd_gnttab_done()
xen: remove gnttab_query_foreign_access()
xen/gntalloc: don't use gnttab_query_foreign_access()
xen/scsifront: don't use gnttab_query_foreign_access() for mapped status
xen/netfront: don't use gnttab_query_foreign_access() for mapped status
xen/blkfront: don't use gnttab_query_foreign_access() for mapped status
xen/grant-table: add gnttab_try_end_foreign_access()
xen/xenbus: don't let xenbus_grant_ring() remove grants in error case
SHAMPO is an RQ / WQ feature, an indication was added to the TIR in the
first place to enforce suitability between connected TIR and RQ, this
enforcement does not exist in current the Firmware implementation and was
redundant in the first place.
Fixes: 83439f3c37 ("net/mlx5e: Add HW-GRO offload")
Signed-off-by: Ben Ben-Ishay <benishay@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
According to HW spec the field "size" should be 16 bits
in bufferx register.
Fixes: e281682bf2 ("net/mlx5_core: HW data structs/types definitions cleanup")
Signed-off-by: Mohammad Kabat <mohammadkab@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Steffen Klassert says:
====================
pull request (net): ipsec 2022-03-09
1) Fix IPv6 PMTU discovery for xfrm interfaces.
From Lina Wang.
2) Revert failing for policies and states that are
configured with XFRMA_IF_ID 0. It broke a
user configuration. From Kai Lueke.
3) Fix a possible buffer overflow in the ESP output path.
4) Fix ESP GSO for tunnel and BEET mode on inter address
family tunnels.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'fuse-fixes-5.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
- Fix an issue with splice on the fuse device
- Fix a regression in the fileattr API conversion
- Add a small userspace API improvement
* tag 'fuse-fixes-5.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: fix pipe buffer lifetime for direct_io
fuse: move FUSE_SUPER_MAGIC definition to magic.h
fuse: fix fileattr op failure
- Make EL1 vectors per-cpu
- Add mitigation sequences to the EL1 and EL2 vectors on vulnerble CPUs
- Implement ARCH_WORKAROUND_3 for KVM guests
- Report Vulnerable when unprivileged eBPF is enabled
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Merge tag 'arm64-spectre-bhb-for-v5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 spectre fixes from James Morse:
"ARM64 Spectre-BHB mitigations:
- Make EL1 vectors per-cpu
- Add mitigation sequences to the EL1 and EL2 vectors on vulnerble
CPUs
- Implement ARCH_WORKAROUND_3 for KVM guests
- Report Vulnerable when unprivileged eBPF is enabled"
* tag 'arm64-spectre-bhb-for-v5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: proton-pack: Include unprivileged eBPF status in Spectre v2 mitigation reporting
arm64: Use the clearbhb instruction in mitigations
KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated
arm64: Mitigate spectre style branch history side channels
arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2
arm64: Add percpu vectors for EL1
arm64: entry: Add macro for reading symbol addresses from the trampoline
arm64: entry: Add vectors that have the bhb mitigation sequences
arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations
arm64: entry: Allow the trampoline text to occupy multiple pages
arm64: entry: Make the kpti trampoline's kpti sequence optional
arm64: entry: Move trampoline macros out of ifdef'd section
arm64: entry: Don't assume tramp_vectors is the start of the vectors
arm64: entry: Allow tramp_alias to access symbols after the 4K boundary
arm64: entry: Move the trampoline data page before the text page
arm64: entry: Free up another register on kpti's tramp_exit path
arm64: entry: Make the trampoline cleanup optional
KVM: arm64: Allow indirect vectors to be used without SPECTRE_V3A
arm64: spectre: Rename spectre_v4_patch_fw_mitigation_conduit
arm64: entry.S: Add ventry overflow sanity checks
which support eIBRS, i.e., the hardware-assisted speculation restriction
after it has been shown that such machines are vulnerable even with the
hardware mitigation.
- Do not use the default LFENCE-based Spectre v2 mitigation on AMD as it
is insufficient to mitigate such attacks. Instead, switch to retpolines
on all AMD by default.
- Update the docs and add some warnings for the obviously vulnerable
cmdline configurations.
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Merge tag 'x86_bugs_for_v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 spectre fixes from Borislav Petkov:
- Mitigate Spectre v2-type Branch History Buffer attacks on machines
which support eIBRS, i.e., the hardware-assisted speculation
restriction after it has been shown that such machines are vulnerable
even with the hardware mitigation.
- Do not use the default LFENCE-based Spectre v2 mitigation on AMD as
it is insufficient to mitigate such attacks. Instead, switch to
retpolines on all AMD by default.
- Update the docs and add some warnings for the obviously vulnerable
cmdline configurations.
* tag 'x86_bugs_for_v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT
x86/speculation: Warn about Spectre v2 LFENCE mitigation
x86/speculation: Update link to AMD speculation whitepaper
x86/speculation: Use generic retpoline by default on AMD
x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting
Documentation/hw-vuln: Update spectre doc
x86/speculation: Add eIBRS + Retpoline options
x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE
Some fixes that took a while to get ready. Not regressions,
but they look safe and seem to be worth to have.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"Some last minute fixes that took a while to get ready. Not
regressions, but they look safe and seem to be worth to have"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
tools/virtio: handle fallout from folio work
tools/virtio: fix virtio_test execution
vhost: remove avail_event arg from vhost_update_avail_event()
virtio: drop default for virtio-mem
vdpa: fix use-after-free on vp_vdpa_remove
virtio-blk: Remove BUG_ON() in virtio_queue_rq()
virtio-blk: Don't use MAX_DISCARD_SEGMENTS if max_discard_seg is zero
vhost: fix hung thread due to erroneous iotlb entries
vduse: Fix returning wrong type in vduse_domain_alloc_iova()
vdpa/mlx5: add validation for VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET command
vdpa/mlx5: should verify CTRL_VQ feature exists for MQ
vdpa: factor out vdpa_set_features_unlocked for vdpa internal use
virtio_console: break out of buf poll on remove
virtio: document virtio_reset_device
virtio: acknowledge all features before access
virtio: unexport virtio_finalize_features
Unfortunately, we ended up merging an old version of the patch "fix info
leak with DMA_FROM_DEVICE" instead of merging the latest one. Christoph
(the swiotlb maintainer), he asked me to create an incremental fix
(after I have pointed this out the mix up, and asked him for guidance).
So here we go.
The main differences between what we got and what was agreed are:
* swiotlb_sync_single_for_device is also required to do an extra bounce
* We decided not to introduce DMA_ATTR_OVERWRITE until we have exploiters
* The implantation of DMA_ATTR_OVERWRITE is flawed: DMA_ATTR_OVERWRITE
must take precedence over DMA_ATTR_SKIP_CPU_SYNC
Thus this patch removes DMA_ATTR_OVERWRITE, and makes
swiotlb_sync_single_for_device() bounce unconditionally (that is, also
when dir == DMA_TO_DEVICE) in order do avoid synchronising back stale
data from the swiotlb buffer.
Let me note, that if the size used with dma_sync_* API is less than the
size used with dma_[un]map_*, under certain circumstances we may still
end up with swiotlb not being transparent. In that sense, this is no
perfect fix either.
To get this bullet proof, we would have to bounce the entire
mapping/bounce buffer. For that we would have to figure out the starting
address, and the size of the mapping in
swiotlb_sync_single_for_device(). While this does seem possible, there
seems to be no firm consensus on how things are supposed to work.
Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Fixes: ddbd89deb7 ("swiotlb: fix info leak with DMA_FROM_DEVICE")
Cc: stable@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The esp tunnel GSO handlers use skb_mac_gso_segment to
push the inner packet to the segmentation handlers.
However, skb_mac_gso_segment takes the Ethernet Protocol
ID from 'skb->protocol' which is wrong for inter address
family tunnels. We fix this by introducing a new
skb_eth_gso_segment function.
This function can be used if it is necessary to pass the
Ethernet Protocol ID directly to the segmentation handler.
First users of this function will be the esp4 and esp6
tunnel segmentation handlers.
Fixes: c35fe4106b ("xfrm: Add mode handlers for IPsec on layer 2")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
The maximum message size that can be send is bigger than
the maximum site that skb_page_frag_refill can allocate.
So it is possible to write beyond the allocated buffer.
Fix this by doing a fallback to COW in that case.
v2:
Avoid get get_order() costs as suggested by Linus Torvalds.
Fixes: cac2661c53 ("esp4: Avoid skb_cow_data whenever possible")
Fixes: 03e2a30f6a ("esp6: Avoid skb_cow_data whenever possible")
Reported-by: valis <sec@valis.email>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
gnttab_end_foreign_access() is used to free a grant reference and
optionally to free the associated page. In case the grant is still in
use by the other side processing is being deferred. This leads to a
problem in case no page to be freed is specified by the caller: the
caller doesn't know that the page is still mapped by the other side
and thus should not be used for other purposes.
The correct way to handle this situation is to take an additional
reference to the granted page in case handling is being deferred and
to drop that reference when the grant reference could be freed
finally.
This requires that there are no users of gnttab_end_foreign_access()
left directly repurposing the granted page after the call, as this
might result in clobbered data or information leaks via the not yet
freed grant reference.
This is part of CVE-2022-23041 / XSA-396.
Reported-by: Simon Gaiser <simon@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
---
V4:
- expand comment in header
V5:
- get page ref in case of kmalloc() failure, too
Remove gnttab_query_foreign_access(), as it is unused and unsafe to
use.
All previous use cases assumed a grant would not be in use after
gnttab_query_foreign_access() returned 0. This information is useless
in best case, as it only refers to a situation in the past, which could
have changed already.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Add a new grant table function gnttab_try_end_foreign_access(), which
will remove and free a grant if it is not in use.
Its main use case is to either free a grant if it is no longer in use,
or to take some other action if it is still in use. This other action
can be an error exit, or (e.g. in the case of blkfront persistent grant
feature) some special handling.
This is CVE-2022-23036, CVE-2022-23038 / part of XSA-396.
Reported-by: Demi Marie Obenour <demi@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
---
V2:
- new patch
V4:
- add comments to header (Jan Beulich)
Pull input updates from Dmitry Torokhov:
- a fixup for Goodix touchscreen driver allowing it to work on certain
Cherry Trail devices
- a fix for imbalanced enable/disable regulator in Elam touchpad driver
that became apparent when used with Asus TF103C 2-in-1 dock
- a couple new input keycodes used on newer keyboards
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
HID: add mapping for KEY_ALL_APPLICATIONS
HID: add mapping for KEY_DICTATE
Input: elan_i2c - fix regulator enable count imbalance after suspend/resume
Input: elan_i2c - move regulator_[en|dis]able() out of elan_[en|dis]able_power()
Input: goodix - workaround Cherry Trail devices with a bogus ACPI Interrupt() resource
Input: goodix - use the new soc_intel_is_byt() helper
Input: samsung-keypad - properly state IOMEM dependency
A deep process chain with many vmas could grow really high. With
default sysctl_max_map_count (64k) and default pid_max (32k) the max
number of vmas in the system is 2147450880 and the refcounter has
headroom of 1073774592 before it reaches REFCOUNT_SATURATED
(3221225472).
Therefore it's unlikely that an anonymous name refcounter will overflow
with these defaults. Currently the max for pid_max is PID_MAX_LIMIT
(4194304) and for sysctl_max_map_count it's INT_MAX (2147483647). In
this configuration anon_vma_name refcount overflow becomes theoretically
possible (that still require heavy sharing of that anon_vma_name between
processes).
kref refcounting interface used in anon_vma_name structure will detect a
counter overflow when it reaches REFCOUNT_SATURATED value but will only
generate a warning and freeze the ref counter. This would lead to the
refcounted object never being freed. A determined attacker could leak
memory like that but it would be rather expensive and inefficient way to
do so.
To ensure anon_vma_name refcount does not overflow, stop anon_vma_name
sharing when the refcount reaches REFCOUNT_MAX (2147483647), which still
leaves INT_MAX/2 (1073741823) values before the counter reaches
REFCOUNT_SATURATED. This should provide enough headroom for raising the
refcounts temporarily.
Link: https://lkml.kernel.org/r/20220223153613.835563-2-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: Michal Hocko <mhocko@suse.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Alexey Gladkov <legion@kernel.org>
Cc: Chris Hyser <chris.hyser@oracle.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Colin Cross <ccross@google.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Xiaofeng Cao <caoxiaofeng@yulong.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
No functional change introduced. vdpa bus driver such as virtio_vdpa
or vhost_vdpa is not supposed to take care of the locking for core
by its own. The locked API vdpa_set_features should suffice the
bus driver's need.
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/1642206481-30721-2-git-send-email-si-wei.liu@oracle.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
The feature negotiation was designed in a way that
makes it possible for devices to know which config
fields will be accessed by drivers.
This is broken since commit 404123c2db ("virtio: allow drivers to
validate features") with fallout in at least block and net. We have a
partial work-around in commit 2f9a174f91 ("virtio: write back
F_VERSION_1 before validate") which at least lets devices find out which
format should config space have, but this is a partial fix: guests
should not access config space without acknowledging features since
otherwise we'll never be able to change the config space format.
To fix, split finalize_features from virtio_finalize_features and
call finalize_features with all feature bits before validation,
and then - if validation changed any bits - once again after.
Since virtio_finalize_features no longer writes out features
rename it to virtio_features_ok - since that is what it does:
checks that features are ok with the device.
As a side effect, this also reduces the amount of hypervisor accesses -
we now only acknowledge features once unless we are clearing any
features when validating (which is uncommon).
IRC I think that this was more or less always the intent in the spec but
unfortunately the way the spec is worded does not say this explicitly, I
plan to address this at the spec level, too.
Acked-by: Jason Wang <jasowang@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 404123c2db ("virtio: allow drivers to validate features")
Fixes: 2f9a174f91 ("virtio: write back F_VERSION_1 before validate")
Cc: "Halil Pasic" <pasic@linux.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio_finalize_features is only used internally within virtio.
No reason to export it.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
This patch adds a new key definition for KEY_ALL_APPLICATIONS
and aliases KEY_DASHBOARD to it.
It also maps the 0x0c/0x2a2 usage code to KEY_ALL_APPLICATIONS.
Signed-off-by: William Mahon <wmahon@chromium.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20220303035618.1.I3a7746ad05d270161a18334ae06e3b6db1a1d339@changeid
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Numerous keyboards are adding dictate keys which allows for text
messages to be dictated by a microphone.
This patch adds a new key definition KEY_DICTATE and maps 0x0c/0x0d8
usage code to this new keycode. Additionally hid-debug is adjusted to
recognize this new usage code as well.
Signed-off-by: William Mahon <wmahon@chromium.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20220303021501.1.I5dbf50eb1a7a6734ee727bda4a8573358c6d3ec0@changeid
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
bluetooth, and netfilter.
Current release - regressions:
- iwlwifi: don't advertise TWT support, prevent FW crash
- xfrm: fix the if_id check in changelink
- xen/netfront: destroy queues before real_num_tx_queues is zeroed
- bluetooth: fix not checking MGMT cmd pending queue, make scanning
work again
Current release - new code bugs:
- mptcp: make SIOCOUTQ accurate for fallback socket
- bluetooth: access skb->len after null check
- bluetooth: hci_sync: fix not using conn_timeout
- smc: fix cleanup when register ULP fails
- dsa: restore error path of dsa_tree_change_tag_proto
- iwlwifi: fix build error for IWLMEI
- iwlwifi: mvm: propagate error from request_ownership to the user
Previous releases - regressions:
- xfrm: fix pMTU regression when reported pMTU is too small
- xfrm: fix TCP MSS calculation when pMTU is close to 1280
- bluetooth: fix bt_skb_sendmmsg not allocating partial chunks
- ipv6: ensure we call ipv6_mc_down() at most once, prevent leaks
- ipv6: prevent leaks in igmp6 when input queues get full
- fix up skbs delta_truesize in UDP GRO frag_list
- eth: e1000e: fix possible HW unit hang after an s0ix exit
- eth: e1000e: correct NVM checksum verification flow
- ptp: ocp: fix large time adjustments
Previous releases - always broken:
- tcp: make tcp_read_sock() more robust in presence of urgent data
- xfrm: distinguishing SAs and SPs by if_id in xfrm_migrate
- xfrm: fix xfrm_migrate issues when address family changes
- dcb: flush lingering app table entries for unregistered devices
- smc: fix unexpected SMC_CLC_DECL_ERR_REGRMB error
- mac80211: fix EAPoL rekey fail in 802.3 rx path
- mac80211: fix forwarded mesh frames AC & queue selection
- netfilter: nf_queue: fix socket access races and bugs
- batman-adv: fix ToCToU iflink problems and check the result
belongs to the expected net namespace
- can: gs_usb, etas_es58x: fix opened_channel_cnt's accounting
- can: rcar_canfd: register the CAN device when fully ready
- eth: igb, igc: phy: drop premature return leaking HW semaphore
- eth: ixgbe: xsk: change !netif_carrier_ok() handling in
ixgbe_xmit_zc(), prevent live lock when link goes down
- eth: stmmac: only enable DMA interrupts when ready
- eth: sparx5: move vlan checks before any changes are made
- eth: iavf: fix races around init, removal, resets and vlan ops
- ibmvnic: more reset flow fixes
Misc:
- eth: fix return value of __setup handlers
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from can, xfrm, wifi, bluetooth, and netfilter.
Lots of various size fixes, the length of the tag speaks for itself.
Most of the 5.17-relevant stuff comes from xfrm, wifi and bt trees
which had been lagging as you pointed out previously. But there's also
a larger than we'd like portion of fixes for bugs from previous
releases.
Three more fixes still under discussion, including and xfrm revert for
uAPI error.
Current release - regressions:
- iwlwifi: don't advertise TWT support, prevent FW crash
- xfrm: fix the if_id check in changelink
- xen/netfront: destroy queues before real_num_tx_queues is zeroed
- bluetooth: fix not checking MGMT cmd pending queue, make scanning
work again
Current release - new code bugs:
- mptcp: make SIOCOUTQ accurate for fallback socket
- bluetooth: access skb->len after null check
- bluetooth: hci_sync: fix not using conn_timeout
- smc: fix cleanup when register ULP fails
- dsa: restore error path of dsa_tree_change_tag_proto
- iwlwifi: fix build error for IWLMEI
- iwlwifi: mvm: propagate error from request_ownership to the user
Previous releases - regressions:
- xfrm: fix pMTU regression when reported pMTU is too small
- xfrm: fix TCP MSS calculation when pMTU is close to 1280
- bluetooth: fix bt_skb_sendmmsg not allocating partial chunks
- ipv6: ensure we call ipv6_mc_down() at most once, prevent leaks
- ipv6: prevent leaks in igmp6 when input queues get full
- fix up skbs delta_truesize in UDP GRO frag_list
- eth: e1000e: fix possible HW unit hang after an s0ix exit
- eth: e1000e: correct NVM checksum verification flow
- ptp: ocp: fix large time adjustments
Previous releases - always broken:
- tcp: make tcp_read_sock() more robust in presence of urgent data
- xfrm: distinguishing SAs and SPs by if_id in xfrm_migrate
- xfrm: fix xfrm_migrate issues when address family changes
- dcb: flush lingering app table entries for unregistered devices
- smc: fix unexpected SMC_CLC_DECL_ERR_REGRMB error
- mac80211: fix EAPoL rekey fail in 802.3 rx path
- mac80211: fix forwarded mesh frames AC & queue selection
- netfilter: nf_queue: fix socket access races and bugs
- batman-adv: fix ToCToU iflink problems and check the result belongs
to the expected net namespace
- can: gs_usb, etas_es58x: fix opened_channel_cnt's accounting
- can: rcar_canfd: register the CAN device when fully ready
- eth: igb, igc: phy: drop premature return leaking HW semaphore
- eth: ixgbe: xsk: change !netif_carrier_ok() handling in
ixgbe_xmit_zc(), prevent live lock when link goes down
- eth: stmmac: only enable DMA interrupts when ready
- eth: sparx5: move vlan checks before any changes are made
- eth: iavf: fix races around init, removal, resets and vlan ops
- ibmvnic: more reset flow fixes
Misc:
- eth: fix return value of __setup handlers"
* tag 'net-5.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (92 commits)
ipv6: fix skb drops in igmp6_event_query() and igmp6_event_report()
net: dsa: make dsa_tree_change_tag_proto actually unwind the tag proto change
ixgbe: xsk: change !netif_carrier_ok() handling in ixgbe_xmit_zc()
selftests: mlxsw: resource_scale: Fix return value
selftests: mlxsw: tc_police_scale: Make test more robust
net: dcb: disable softirqs in dcbnl_flush_dev()
bnx2: Fix an error message
sfc: extend the locking on mcdi->seqno
net/smc: fix unexpected SMC_CLC_DECL_ERR_REGRMB error cause by server
net/smc: fix unexpected SMC_CLC_DECL_ERR_REGRMB error generated by client
net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()
tcp: make tcp_read_sock() more robust
bpf, sockmap: Do not ignore orig_len parameter
net: ipa: add an interconnect dependency
net: fix up skbs delta_truesize in UDP GRO frag_list
iwlwifi: mvm: return value for request_ownership
nl80211: Update bss channel on channel switch for P2P_CLIENT
iwlwifi: fix build error for IWLMEI
ptp: ocp: Add ptp_ocp_adjtime_coarse for large adjustments
batman-adv: Don't expect inter-netns unique iflink indices
...
While investigating on why a synchronize_net() has been added recently
in ipv6_mc_down(), I found that igmp6_event_query() and igmp6_event_report()
might drop skbs in some cases.
Discussion about removing synchronize_net() from ipv6_mc_down()
will happen in a different thread.
Fixes: f185de28d9 ("mld: add new workqueues for process mld events")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Taehee Yoo <ap420073@gmail.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20220303173728.937869-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
1) Use kfree_rcu(ptr, rcu) variant, using kfree_rcu(ptr) was not
intentional. From Eric Dumazet.
2) Use-after-free in netfilter hook core, from Eric Dumazet.
3) Missing rcu read lock side for netfilter egress hook,
from Florian Westphal.
4) nf_queue assume state->sk is full socket while it might not be.
Invoke sock_gen_put(), from Florian Westphal.
5) Add selftest to exercise the reported KASAN splat in 4)
6) Fix possible use-after-free in nf_queue in case sk_refcnt is 0.
Also from Florian.
7) Use input interface index only for hardware offload, not for
the software plane. This breaks tc ct action. Patch from Paul Blakey.
* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
net/sched: act_ct: Fix flow table lookup failure with no originating ifindex
netfilter: nf_queue: handle socket prefetch
netfilter: nf_queue: fix possible use-after-free
selftests: netfilter: add nfqueue TCP_NEW_SYN_RECV socket race test
netfilter: nf_queue: don't assume sk is full socket
netfilter: egress: silence egress hook lockdep splats
netfilter: fix use-after-free in __nf_register_net_hook()
netfilter: nf_tables: prefer kfree_rcu(ptr, rcu) variant
====================
Link: https://lore.kernel.org/r/20220301215337.378405-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
After cited commit optimizted hw insertion, flow table entries are
populated with ifindex information which was intended to only be used
for HW offload. This tuple ifindex is hashed in the flow table key, so
it must be filled for lookup to be successful. But tuple ifindex is only
relevant for the netfilter flowtables (nft), so it's not filled in
act_ct flow table lookup, resulting in lookup failure, and no SW
offload and no offload teardown for TCP connection FIN/RST packets.
To fix this, add new tc ifindex field to tuple, which will
only be used for offloading, not for lookup, as it will not be
part of the tuple hash.
Fixes: 9795ded7f9 ("net/sched: act_ct: Fill offloading tuple iifidx")
Signed-off-by: Paul Blakey <paulb@nvidia.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* rfkill
- add missing rfill_soft_blocked() when disabled
* cfg80211
- handle a nla_memdup() failure correctly
- fix CONFIG_CFG80211_EXTRA_REGDB_KEYDIR typo in
Makefile
* mac80211
- fix EAPOL handling in 802.3 RX path
- reject setting up aggregation sessions before
connection is authorized to avoid timeouts or
similar
- handle some SAE authentication steps correctly
- fix AC selection in mesh forwarding
* iwlwifi
- remove TWT support as it causes firmware crashes
when the AP isn't behaving correctly
- check debugfs pointer before dereferncing it
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Merge tag 'wireless-for-net-2022-03-01' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
johannes Berg says:
====================
Some last-minute fixes:
* rfkill
- add missing rfill_soft_blocked() when disabled
* cfg80211
- handle a nla_memdup() failure correctly
- fix CONFIG_CFG80211_EXTRA_REGDB_KEYDIR typo in
Makefile
* mac80211
- fix EAPOL handling in 802.3 RX path
- reject setting up aggregation sessions before
connection is authorized to avoid timeouts or
similar
- handle some SAE authentication steps correctly
- fix AC selection in mesh forwarding
* iwlwifi
- remove TWT support as it causes firmware crashes
when the AP isn't behaving correctly
- check debugfs pointer before dereferncing it
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet says:
The sock_hold() side seems suspect, because there is no guarantee
that sk_refcnt is not already 0.
On failure, we cannot queue the packet and need to indicate an
error. The packet will be dropped by the caller.
v2: split skb prefetch hunk into separate change
Fixes: 271b72c7fa ("udp: RCU handling for Unicast packets.")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
If CONFIG_RFKILL is not set, the Intel WiFi driver will not build
the iw_mvm driver part due to the missing rfill_soft_blocked()
call. Adding a inline declaration of rfill_soft_blocked() if
CONFIG_RFKILL=n fixes the following error:
drivers/net/wireless/intel/iwlwifi/mvm/mvm.h: In function 'iwl_mvm_mei_set_sw_rfkill_state':
drivers/net/wireless/intel/iwlwifi/mvm/mvm.h:2215:38: error: implicit declaration of function 'rfkill_soft_blocked'; did you mean 'rfkill_blocked'? [-Werror=implicit-function-declaration]
2215 | mvm->hw_registered ? rfkill_soft_blocked(mvm->hw->wiphy->rfkill) : false;
| ^~~~~~~~~~~~~~~~~~~
| rfkill_blocked
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reported-by: Neill Whillans <neill.whillans@codethink.co.uk>
Fixes: 5bc9a9dd75 ("rfkill: allow to get the software rfkill state")
Link: https://lore.kernel.org/r/20220218093858.1245677-1-ben.dooks@codethink.co.uk
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Netfilter assumes its called with rcu_read_lock held, but in egress
hook case it may be called with BH readlock.
This triggers lockdep splat.
In order to avoid to change all rcu_dereference() to
rcu_dereference_check(..., rcu_read_lock_bh_held()), wrap nf_hook_slow
with read lock/unlock pair.
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The code changes address mostly minor problems:
- Several NXP/FSL SoC driver fixes, addressing issues with error
handling and compilation
- Fix a clock disabling imbalance in gpcv2 driver.
- Arm Juno DMA coherency issue
- Trivial firmware driver fixes for op-tee and scmi firmware
The remaining changes address issues in the devicetree files:
- a timer regression for the OMAP devkit8000, which has to use
the alternative timer.
- A hang in the i.MX8MM power domain configuration
- Multiple fixes for the Rockchip RK3399 addressing issues
with sound and eMMC
- Cosmetic fixes for i.MX8ULP, RK3xxx, and Tegra124
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Merge tag 'soc-fixes-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"The code changes address mostly minor problems:
- Several NXP/FSL SoC driver fixes, addressing issues with error
handling and compilation
- Fix a clock disabling imbalance in gpcv2 driver.
- Arm Juno DMA coherency issue
- Trivial firmware driver fixes for op-tee and scmi firmware
The remaining changes address issues in the devicetree files:
- A timer regression for the OMAP devkit8000, which has to use the
alternative timer.
- A hang in the i.MX8MM power domain configuration
- Multiple fixes for the Rockchip RK3399 addressing issues with sound
and eMMC
- Cosmetic fixes for i.MX8ULP, RK3xxx, and Tegra124"
* tag 'soc-fixes-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (32 commits)
ARM: tegra: Move panels to AUX bus
soc: imx: gpcv2: Fix clock disabling imbalance in error path
soc: fsl: qe: Check of ioremap return value
soc: fsl: qe: fix typo in a comment
soc: fsl: guts: Add a missing memory allocation failure check
soc: fsl: guts: Revert commit 3c0d64e867
soc: fsl: Correct MAINTAINERS database (SOC)
soc: fsl: Correct MAINTAINERS database (QUICC ENGINE LIBRARY)
soc: fsl: Replace kernel.h with the necessary inclusions
dt-bindings: fsl,layerscape-dcfg: add missing compatible for lx2160a
dt-bindings: qoriq-clock: add missing compatible for lx2160a
ARM: dts: Use 32KiHz oscillator on devkit8000
ARM: dts: switch timer config to common devkit8000 devicetree
tee: optee: fix error return code in probe function
arm64: dts: imx8ulp: Set #thermal-sensor-cells to 1 as required
arm64: dts: imx8mm: Fix VPU Hanging
ARM: dts: rockchip: fix a typo on rk3288 crypto-controller
ARM: dts: rockchip: reorder rk322x hmdi clocks
firmware: arm_scmi: Remove space in MODULE_ALIAS name
arm64: dts: agilex: use the compatible "intel,socfpga-agilex-hsotg"
...
- fix a swiotlb info leak (Halil Pasic)
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Merge tag 'dma-mapping-5.17-1' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fix from Christoph Hellwig:
- fix a swiotlb info leak (Halil Pasic)
* tag 'dma-mapping-5.17-1' of git://git.infradead.org/users/hch/dma-mapping:
swiotlb: fix info leak with DMA_FROM_DEVICE
- rtla (Real-Time Linux Analysis tool): fix typo in man page
- rtla: Update API -e to -E before it is released
- rlla: Error message fix and memory leak fix
- Partially uninline trace event soft disable to shrink text
- Fix function graph start up test
- Have triggers affect the trace instance they are in and not top level
- Have osnoise sleep in the units it says it uses
- Remove unused ftrace stub function
- Remove event probe redundant info from event in the buffer
- Fix group ownership setting in tracefs
- Ensure trace buffer is minimum size to prevent crashes
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Merge tag 'trace-v5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
- rtla (Real-Time Linux Analysis tool):
- fix typo in man page
- Update API -e to -E before it is released
- Error message fix and memory leak fix
- Partially uninline trace event soft disable to shrink text
- Fix function graph start up test
- Have triggers affect the trace instance they are in and not top level
- Have osnoise sleep in the units it says it uses
- Remove unused ftrace stub function
- Remove event probe redundant info from event in the buffer
- Fix group ownership setting in tracefs
- Ensure trace buffer is minimum size to prevent crashes
* tag 'trace-v5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
rtla/osnoise: Fix error message when failing to enable trace instance
rtla/osnoise: Free params at the exit
rtla/hist: Make -E the short version of --entries
tracing: Fix selftest config check for function graph start up test
tracefs: Set the group ownership in apply_options() not parse_options()
tracing/osnoise: Make osnoise_main to sleep for microseconds
ftrace: Remove unused ftrace_startup_enable() stub
tracing: Ensure trace buffer is at least 4096 bytes large
tracing: Uninline trace_trigger_soft_disabled() partly
eprobes: Remove redundant event type information
tracing: Have traceon and traceoff trigger honor the instance
tracing: Dump stacktrace trigger to the corresponding instance
rtla: Fix systme -> system typo on man page
Here are a few small driver fixes for 5.17-rc6 for reported issues. The
majority of these are IIO fixes for small things, and the other two are
a mvmem and mtd core conflict fix.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a few small driver fixes for 5.17-rc6 for reported issues.
The majority of these are IIO fixes for small things, and the other
two are a mvmem and mtd core conflict fix.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mtd: core: Fix a conflict between MTD and NVMEM on wp-gpios property
nvmem: core: Fix a conflict between MTD and NVMEM on wp-gpios property
iio: imu: st_lsm6dsx: wait for settling time in st_lsm6dsx_read_oneshot
iio: Fix error handling for PM
iio: addac: ad74413r: correct comparator gpio getters mask usage
iio: addac: ad74413r: use ngpio size when iterating over mask
iio: addac: ad74413r: Do not reference negative array offsets
iio: adc: men_z188_adc: Fix a resource leak in an error handling path
iio: frequency: admv1013: remove the always true condition
iio: accel: fxls8962af: add padding to regmap for SPI
iio:imu:adis16480: fix buffering for devices with no burst mode
iio: adc: ad7124: fix mask used for setting AIN_BUFP & AIN_BUFM bits
iio: adc: tsc2046: fix memory corruption by preventing array overflow
On a powerpc32 build with CONFIG_CC_OPTIMISE_FOR_SIZE, the inline
keyword is not honored and trace_trigger_soft_disabled() appears
approx 50 times in vmlinux.
Adding -Winline to the build, the following message appears:
./include/linux/trace_events.h:712:1: error: inlining failed in call to 'trace_trigger_soft_disabled': call is unlikely and code size would grow [-Werror=inline]
That function is rather big for an inlined function:
c003df60 <trace_trigger_soft_disabled>:
c003df60: 94 21 ff f0 stwu r1,-16(r1)
c003df64: 7c 08 02 a6 mflr r0
c003df68: 90 01 00 14 stw r0,20(r1)
c003df6c: bf c1 00 08 stmw r30,8(r1)
c003df70: 83 e3 00 24 lwz r31,36(r3)
c003df74: 73 e9 01 00 andi. r9,r31,256
c003df78: 41 82 00 10 beq c003df88 <trace_trigger_soft_disabled+0x28>
c003df7c: 38 60 00 00 li r3,0
c003df80: 39 61 00 10 addi r11,r1,16
c003df84: 4b fd 60 ac b c0014030 <_rest32gpr_30_x>
c003df88: 73 e9 00 80 andi. r9,r31,128
c003df8c: 7c 7e 1b 78 mr r30,r3
c003df90: 41 a2 00 14 beq c003dfa4 <trace_trigger_soft_disabled+0x44>
c003df94: 38 c0 00 00 li r6,0
c003df98: 38 a0 00 00 li r5,0
c003df9c: 38 80 00 00 li r4,0
c003dfa0: 48 05 c5 f1 bl c009a590 <event_triggers_call>
c003dfa4: 73 e9 00 40 andi. r9,r31,64
c003dfa8: 40 82 00 28 bne c003dfd0 <trace_trigger_soft_disabled+0x70>
c003dfac: 73 ff 02 00 andi. r31,r31,512
c003dfb0: 41 82 ff cc beq c003df7c <trace_trigger_soft_disabled+0x1c>
c003dfb4: 80 01 00 14 lwz r0,20(r1)
c003dfb8: 83 e1 00 0c lwz r31,12(r1)
c003dfbc: 7f c3 f3 78 mr r3,r30
c003dfc0: 83 c1 00 08 lwz r30,8(r1)
c003dfc4: 7c 08 03 a6 mtlr r0
c003dfc8: 38 21 00 10 addi r1,r1,16
c003dfcc: 48 05 6f 6c b c0094f38 <trace_event_ignore_this_pid>
c003dfd0: 38 60 00 01 li r3,1
c003dfd4: 4b ff ff ac b c003df80 <trace_trigger_soft_disabled+0x20>
However it is located in a hot path so inlining it is important.
But forcing inlining of the entire function by using __always_inline
leads to increasing the text size by approx 20 kbytes.
Instead, split the fonction in two parts, one part with the likely
fast path, flagged __always_inline, and a second part out of line.
With this change, on a powerpc32 with CONFIG_CC_OPTIMISE_FOR_SIZE
vmlinux text increases by only 1,4 kbytes, which is partly
compensated by a decrease of vmlinux data by 7 kbytes.
On ppc64_defconfig which has CONFIG_CC_OPTIMISE_FOR_SPEED, this
change reduces vmlinux text by more than 30 kbytes.
Link: https://lkml.kernel.org/r/69ce0986a52d026d381d612801d978aa4f977460.1644563295.git.christophe.leroy@csgroup.eu
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Steffen Klassert says:
====================
1) Fix PMTU for IPv6 if the reported MTU minus the ESP overhead is
smaller than 1280. From Jiri Bohac.
2) Fix xfrm interface ID and inter address family tunneling when
migrating xfrm states. From Yan Yan.
3) Add missing xfrm intrerface ID initialization on xfrmi_changelink.
From Antony Antony.
4) Enforce validity of xfrm offload input flags so that userspace can't
send undefined flags to the offload driver.
From Leon Romanovsky.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
- Fix regression with RFCOMM
- Fix regression with LE devices using Privacy (RPA)
- Fix regression with LE devices not waiting proper timeout to
establish connections
- Fix race in smp
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Merge tag 'for-net-2022-02-24' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Luiz Augusto von Dentz says:
====================
bluetooth pull request for net:
- Fix regression with RFCOMM
- Fix regression with LE devices using Privacy (RPA)
- Fix regression with LE devices not waiting proper timeout to
establish connections
- Fix race in smp
* tag 'for-net-2022-02-24' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth:
Bluetooth: hci_sync: Fix not using conn_timeout
Bluetooth: hci_sync: Fix hci_update_accept_list_sync
Bluetooth: assign len after null check
Bluetooth: Fix bt_skb_sendmmsg not allocating partial chunks
Bluetooth: fix data races in smp_unregister(), smp_del_chan()
Bluetooth: hci_core: Fix leaking sent_cmd skb
====================
Link: https://lore.kernel.org/r/20220224210838.197787-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* Expose KVM_CAP_ENABLE_CAP since it is supported
* Disable KVM_HC_CLOCK_PAIRING in TSC catchup mode
* Ensure async page fault token is nonzero
* Fix lockdep false negative
* Fix FPU migration regression from the AMX changes
x86 guest:
* Don't use PV TLB/IPI/yield on uniprocessor guests
PPC:
* reserve capability id (topic branch for ppc/kvm)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"x86 host:
- Expose KVM_CAP_ENABLE_CAP since it is supported
- Disable KVM_HC_CLOCK_PAIRING in TSC catchup mode
- Ensure async page fault token is nonzero
- Fix lockdep false negative
- Fix FPU migration regression from the AMX changes
x86 guest:
- Don't use PV TLB/IPI/yield on uniprocessor guests
PPC:
- reserve capability id (topic branch for ppc/kvm)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: nSVM: disallow userspace setting of MSR_AMD64_TSC_RATIO to non default value when tsc scaling disabled
KVM: x86/mmu: make apf token non-zero to fix bug
KVM: PPC: reserve capability 210 for KVM_CAP_PPC_AIL_MODE_3
x86/kvm: Don't use pv tlb/ipi/sched_yield if on 1 vCPU
x86/kvm: Fix compilation warning in non-x86_64 builds
x86/kvm/fpu: Remove kvm_vcpu_arch.guest_supported_xcr0
x86/kvm/fpu: Limit guest user_xfeatures to supported bits of XCR0
kvm: x86: Disable KVM_HC_CLOCK_PAIRING if tsc is in always catchup mode
KVM: Fix lockdep false negative during host resume
KVM: x86: Add KVM_CAP_ENABLE_CAP to x86
Current release - regressions:
- bpf: fix crash due to out of bounds access into reg2btf_ids
- mvpp2: always set port pcs ops, avoid null-deref
- eth: marvell: fix driver load from initrd
- eth: intel: revert "Fix reset bw limit when DCB enabled with 1 TC"
Current release - new code bugs:
- mptcp: fix race in overlapping signal events
Previous releases - regressions:
- xen-netback: revert hotplug-status changes causing devices to
not be configured
- dsa:
- avoid call to __dev_set_promiscuity() while rtnl_mutex isn't held
- fix panic when removing unoffloaded port from bridge
- dsa: microchip: fix bridging with more than two member ports
Previous releases - always broken:
- bpf:
- fix crash due to incorrect copy_map_value when both spin lock
and timer are present in a single value
- fix a bpf_timer initialization issue with clang
- do not try bpf_msg_push_data with len 0
- add schedule points in batch ops
- nf_tables:
- unregister flowtable hooks on netns exit
- correct flow offload action array size
- fix a couple of memory leaks
- vsock: don't check owner in vhost_vsock_stop() while releasing
- gso: do not skip outer ip header in case of ipip and net_failover
- smc: use a mutex for locking "struct smc_pnettable"
- openvswitch: fix setting ipv6 fields causing hw csum failure
- mptcp: fix race in incoming ADD_ADDR option processing
- sysfs: add check for netdevice being present to speed_show
- sched: act_ct: fix flow table lookup after ct clear or switching
zones
- eth: intel: fixes for SR-IOV forwarding offloads
- eth: broadcom: fixes for selftests and error recovery
- eth: mellanox: flow steering and SR-IOV forwarding fixes
Misc:
- make __pskb_pull_tail() & pskb_carve_frag_list() drop_monitor
friends not report freed skbs as drops
- force inlining of checksum functions in net/checksum.h
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf and netfilter.
Current release - regressions:
- bpf: fix crash due to out of bounds access into reg2btf_ids
- mvpp2: always set port pcs ops, avoid null-deref
- eth: marvell: fix driver load from initrd
- eth: intel: revert "Fix reset bw limit when DCB enabled with 1 TC"
Current release - new code bugs:
- mptcp: fix race in overlapping signal events
Previous releases - regressions:
- xen-netback: revert hotplug-status changes causing devices to not
be configured
- dsa:
- avoid call to __dev_set_promiscuity() while rtnl_mutex isn't
held
- fix panic when removing unoffloaded port from bridge
- dsa: microchip: fix bridging with more than two member ports
Previous releases - always broken:
- bpf:
- fix crash due to incorrect copy_map_value when both spin lock
and timer are present in a single value
- fix a bpf_timer initialization issue with clang
- do not try bpf_msg_push_data with len 0
- add schedule points in batch ops
- nf_tables:
- unregister flowtable hooks on netns exit
- correct flow offload action array size
- fix a couple of memory leaks
- vsock: don't check owner in vhost_vsock_stop() while releasing
- gso: do not skip outer ip header in case of ipip and net_failover
- smc: use a mutex for locking "struct smc_pnettable"
- openvswitch: fix setting ipv6 fields causing hw csum failure
- mptcp: fix race in incoming ADD_ADDR option processing
- sysfs: add check for netdevice being present to speed_show
- sched: act_ct: fix flow table lookup after ct clear or switching
zones
- eth: intel: fixes for SR-IOV forwarding offloads
- eth: broadcom: fixes for selftests and error recovery
- eth: mellanox: flow steering and SR-IOV forwarding fixes
Misc:
- make __pskb_pull_tail() & pskb_carve_frag_list() drop_monitor
friends not report freed skbs as drops
- force inlining of checksum functions in net/checksum.h"
* tag 'net-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (85 commits)
net: mv643xx_eth: process retval from of_get_mac_address
ping: remove pr_err from ping_lookup
Revert "i40e: Fix reset bw limit when DCB enabled with 1 TC"
openvswitch: Fix setting ipv6 fields causing hw csum failure
ipv6: prevent a possible race condition with lifetimes
net/smc: Use a mutex for locking "struct smc_pnettable"
bnx2x: fix driver load from initrd
Revert "xen-netback: Check for hotplug-status existence before watching"
Revert "xen-netback: remove 'hotplug-status' once it has served its purpose"
net/mlx5e: Fix VF min/max rate parameters interchange mistake
net/mlx5e: Add missing increment of count
net/mlx5e: MPLSoUDP decap, fix check for unsupported matches
net/mlx5e: Fix MPLSoUDP encap to use MPLS action information
net/mlx5e: Add feature check for set fec counters
net/mlx5e: TC, Skip redundant ct clear actions
net/mlx5e: TC, Reject rules with forward and drop actions
net/mlx5e: TC, Reject rules with drop and modify hdr action
net/mlx5e: kTLS, Use CHECKSUM_UNNECESSARY for device-offloaded packets
net/mlx5e: Fix wrong return value on ioctl EEPROM query failure
net/mlx5: Fix possible deadlock on rule deletion
...
When using hci_le_create_conn_sync it shall wait for the conn_timeout
since the connection complete may take longer than just 2 seconds.
Also fix the masking of HCI_EV_LE_ENHANCED_CONN_COMPLETE and
HCI_EV_LE_CONN_COMPLETE so they are never both set so we can predict
which one the controller will use in case of HCI_OP_LE_CREATE_CONN.
Fixes: 6cd29ec6ae ("Bluetooth: hci_sync: Wait for proper events when connecting LE")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Since bt_skb_sendmmsg can be used with the likes of SOCK_STREAM it
shall return the partial chunks it could allocate instead of freeing
everything as otherwise it can cause problems like bellow.
Fixes: 81be03e026 ("Bluetooth: RFCOMM: Replace use of memcpy_from_msg with bt_skb_sendmmsg")
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Link: https://lore.kernel.org/r/d7206e12-1b99-c3be-84f4-df22af427ef5@molgen.mpg.de
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215594
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tested-by: Paul Menzel <pmenzel@molgen.mpg.de> (Nokia N9 (MeeGo/Harmattan)
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Merge tag 'block-5.17-2022-02-24' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull request:
- send H2CData PDUs based on MAXH2CDATA (Varun Prakash)
- fix passthrough to namespaces with unsupported features (Christoph
Hellwig)
- Clear iocb->private at poll completion (Stefano)
* tag 'block-5.17-2022-02-24' of git://git.kernel.dk/linux-block:
nvme-tcp: send H2CData PDUs based on MAXH2CDATA
nvme: also mark passthrough-only namespaces ready in nvme_update_ns_info
nvme: don't return an error from nvme_configure_metadata
block: clear iocb->private in blkdev_bio_end_io_async()
