- Add NOLPM quirk for for all Crucial BX SSD1 models.
Considering that we now have had bug reports for 3 different BX SSD1
variants from Crucial with the same product name, make the quirk more
inclusive, to catch more device models from the same generation.
- Fix a trivial null pointer dereference in the error path for
ata_host_release().
- Create a ata_port_free(), so that we don't miss freeing ata_port struct
members when freeing a struct ata_port.
- Fix a trivial double free in the error path for ata_host_alloc().
- Ensure that we remove the libata "remapped NVMe device count" sysfs
entry on .probe() error.
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRN+ES/c4tHlMch3DzJZDGjmcZNcgUCZoHMzwAKCRDJZDGjmcZN
cj4wAP4nHi3Jr/ezwrIahwMGXV/VSlUhxOakj3OADdHe5spIogD/SrR8Uz7/m5QC
sMF0Rd2L7tfrQSDdJ/MztBi7cVprtQo=
=lnku
-----END PGP SIGNATURE-----
Merge tag 'ata-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Niklas Cassel:
- Add NOLPM quirk for for all Crucial BX SSD1 models.
Considering that we now have had bug reports for 3 different BX SSD1
variants from Crucial with the same product name, make the quirk more
inclusive, to catch more device models from the same generation.
- Fix a trivial NULL pointer dereference in the error path for
ata_host_release().
- Create a ata_port_free(), so that we don't miss freeing ata_port
struct members when freeing a struct ata_port.
- Fix a trivial double free in the error path for ata_host_alloc().
- Ensure that we remove the libata "remapped NVMe device count" sysfs
entry on .probe() error.
* tag 'ata-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: ahci: Clean up sysfs file on error
ata: libata-core: Fix double free on error
ata,scsi: libata-core: Do not leak memory for ata_port struct members
ata: libata-core: Fix null pointer dereference on error
ata: libata-core: Add ATA_HORKAGE_NOLPM for all Crucial BX SSD1 models
libsas is currently not freeing all the struct ata_port struct members,
e.g. ncq_sense_buf for a driver supporting Command Duration Limits (CDL).
Add a function, ata_port_free(), that is used to free a ata_port,
including its struct members. It makes sense to keep the code related to
freeing a ata_port in its own function, which will also free all the
struct members of struct ata_port.
Fixes: 18bd7718b5 ("scsi: ata: libata: Handle completion of CDL commands using policy 0xD")
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20240629124210.181537-8-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Here are a bunch of fixes/reverts for 6.10-rc6. Include in here are:
- revert the bunch of tty/serial/console changes that landed in -rc1
that didn't quite work properly yet. Everyone agreed to just revert
them for now and will work on making them better for a future
release instead of trying to quick fix the existing changes this
late in the release cycle
- 8250 driver port count bugfix
- Other tiny serial port bugfixes for reported issues
All of these have been in linux-next this week with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZoFmvg8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ymziACgvoDTxuDHHfPOd6h/1qrHqYpFK1YAn2IDMJGj
Ng4/I/gwnkJeeHQC5JSn
=g9o4
-----END PGP SIGNATURE-----
Merge tag 'tty-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial / console fixes from Greg KH:
"Here are a bunch of fixes/reverts for 6.10-rc6. Include in here are:
- revert the bunch of tty/serial/console changes that landed in -rc1
that didn't quite work properly yet.
Everyone agreed to just revert them for now and will work on making
them better for a future release instead of trying to quick fix the
existing changes this late in the release cycle
- 8250 driver port count bugfix
- Other tiny serial port bugfixes for reported issues
All of these have been in linux-next this week with no reported
issues"
* tag 'tty-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "printk: Save console options for add_preferred_console_match()"
Revert "printk: Don't try to parse DEVNAME:0.0 console options"
Revert "printk: Flag register_console() if console is set on command line"
Revert "serial: core: Add support for DEVNAME:0.0 style naming for kernel console"
Revert "serial: core: Handle serial console options"
Revert "serial: 8250: Add preferred console in serial8250_isa_init_ports()"
Revert "Documentation: kernel-parameters: Add DEVNAME:0.0 format for serial ports"
Revert "serial: 8250: Fix add preferred console for serial8250_isa_init_ports()"
Revert "serial: core: Fix ifdef for serial base console functions"
serial: bcm63xx-uart: fix tx after conversion to uart_port_tx_limited()
serial: core: introduce uart_port_tx_limited_flags()
Revert "serial: core: only stop transmit when HW fifo is empty"
serial: imx: set receiver level before starting uart
tty: mcf: MCF54418 has 10 UARTS
serial: 8250_omap: Implementation of Errata i2310
tty: serial: 8250: Fix port count mismatch with the device
simple stuff:
- null ptr/err ptr deref fixes
- fix for getting wedged on shutdown after journal error
- fix missing recalc_capacity() call, capacity now changes correctly
after a device goes read only
however: our capacity calculation still doesn't take into account when
we have mixed ro/rw devices and the ro devices have data on them,
that's going to be a more involved fix to separate accounting for
"capacity used on ro devices" and "capacity used on rw devices"
- boring syzbot stuff
slightly more involved:
- discard, invalidate workers are now per device
this has the effect of simplifying how we take device refs in these
paths, and the device ref cleanup fixes a longstanding race between
the device removal path and the discard path
- fixes for how the debugfs code takes refs on btree_trans objects
we have debugfs code that prints in use btree_trans objects. It uses
closure_get() on trans->ref, which is mainly for the cycle detector,
but the debugfs code was using it on a closure that may have hit 0,
which is not allowed; for performance reasons we cannot avoid having
not-in-use transactions on the global list.
introduce some new primitives to fix this and make the synchronization
here a whole lot saner
-----BEGIN PGP SIGNATURE-----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=svIi
-----END PGP SIGNATURE-----
Merge tag 'bcachefs-2024-06-28' of https://evilpiepirate.org/git/bcachefs
Pull bcachefs fixes from Kent Overstreet:
"Simple stuff:
- NULL ptr/err ptr deref fixes
- fix for getting wedged on shutdown after journal error
- fix missing recalc_capacity() call, capacity now changes correctly
after a device goes read only
however: our capacity calculation still doesn't take into account
when we have mixed ro/rw devices and the ro devices have data on
them, that's going to be a more involved fix to separate accounting
for "capacity used on ro devices" and "capacity used on rw devices"
- boring syzbot stuff
Slightly more involved:
- discard, invalidate workers are now per device
this has the effect of simplifying how we take device refs in these
paths, and the device ref cleanup fixes a longstanding race between
the device removal path and the discard path
- fixes for how the debugfs code takes refs on btree_trans objects we
have debugfs code that prints in use btree_trans objects.
It uses closure_get() on trans->ref, which is mainly for the cycle
detector, but the debugfs code was using it on a closure that may
have hit 0, which is not allowed; for performance reasons we cannot
avoid having not-in-use transactions on the global list.
Introduce some new primitives to fix this and make the
synchronization here a whole lot saner"
* tag 'bcachefs-2024-06-28' of https://evilpiepirate.org/git/bcachefs:
bcachefs: Fix kmalloc bug in __snapshot_t_mut
bcachefs: Discard, invalidate workers are now per device
bcachefs: Fix shift-out-of-bounds in bch2_blacklist_entries_gc
bcachefs: slab-use-after-free Read in bch2_sb_errors_from_cpu
bcachefs: Add missing bch2_journal_do_writes() call
bcachefs: Fix null ptr deref in journal_pins_to_text()
bcachefs: Add missing recalc_capacity() call
bcachefs: Fix btree_trans list ordering
bcachefs: Fix race between trans_put() and btree_transactions_read()
closures: closure_get_not_zero(), closure_return_sync()
bcachefs: Make btree_deadlock_to_text() clearer
bcachefs: fix seqmutex_relock()
bcachefs: Fix freeing of error pointers
-----BEGIN PGP SIGNATURE-----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=ZQ+K
-----END PGP SIGNATURE-----
Merge tag 'io_uring-6.10-20240627' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
"Removal of a struct member that's unused since the 6.10 merge window,
and a fix for a regression in SQPOLL wakeups, bringing it back to how
it worked before the SQPOLL local task_work"
* tag 'io_uring-6.10-20240627' of git://git.kernel.dk/linux:
io_uring: signal SQPOLL task_work with TWA_SIGNAL_NO_IPI
io_uring: remove dead struct io_submit_state member
These are some bugfixes for system call ABI issues I found while
working on a cleanup series. None of these are urgent since these
bugs have gone unnoticed for many years, but I think we probably
want to backport them all to stable kernels, so it makes sense
to have the fixes included as early as possible.
One more fix addresses a compile-time warning in kallsyms that was
uncovered by a patch I did to enable additional warnings in 6.10. I had
mistakenly thought that this fix was already merged through the module
tree, but as Geert pointed out it was still missing.
-----BEGIN PGP SIGNATURE-----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=ieQy
-----END PGP SIGNATURE-----
Merge tag 'asm-generic-fixes-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic fixes from Arnd Bergmann:
"These are some bugfixes for system call ABI issues I found while
working on a cleanup series. None of these are urgent since these bugs
have gone unnoticed for many years, but I think we probably want to
backport them all to stable kernels, so it makes sense to have the
fixes included as early as possible.
One more fix addresses a compile-time warning in kallsyms that was
uncovered by a patch I did to enable additional warnings in 6.10. I
had mistakenly thought that this fix was already merged through the
module tree, but as Geert pointed out it was still missing"
* tag 'asm-generic-fixes-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
kallsyms: rework symbol lookup return codes
linux/syscalls.h: add missing __user annotations
syscalls: mmap(): use unsigned offset type consistently
s390: remove native mmap2() syscall
hexagon: fix fadvise64_64 calling conventions
csky, hexagon: fix broken sys_sync_file_range
sh: rework sync_file_range ABI
powerpc: restore some missing spu syscalls
parisc: use generic sys_fanotify_mark implementation
parisc: use correct compat recv/recvfrom syscalls
sparc: fix compat recv/recvfrom syscalls
sparc: fix old compat_sys_select()
syscalls: fix compat_sys_io_pgetevents_time64 usage
ftruncate: pass a signed offset
Building with W=1 in some configurations produces a false positive
warning for kallsyms:
kernel/kallsyms.c: In function '__sprint_symbol.isra':
kernel/kallsyms.c:503:17: error: 'strcpy' source argument is the same as destination [-Werror=restrict]
503 | strcpy(buffer, name);
| ^~~~~~~~~~~~~~~~~~~~
This originally showed up while building with -O3, but later started
happening in other configurations as well, depending on inlining
decisions. The underlying issue is that the local 'name' variable is
always initialized to the be the same as 'buffer' in the called functions
that fill the buffer, which gcc notices while inlining, though it could
see that the address check always skips the copy.
The calling conventions here are rather unusual, as all of the internal
lookup functions (bpf_address_lookup, ftrace_mod_address_lookup,
ftrace_func_address_lookup, module_address_lookup and
kallsyms_lookup_buildid) already use the provided buffer and either return
the address of that buffer to indicate success, or NULL for failure,
but the callers are written to also expect an arbitrary other buffer
to be returned.
Rework the calling conventions to return the length of the filled buffer
instead of its address, which is simpler and easier to follow as well
as avoiding the warning. Leave only the kallsyms_lookup() calling conventions
unchanged, since that is called from 16 different functions and
adapting this would be a much bigger change.
Link: https://lore.kernel.org/lkml/20200107214042.855757-1-arnd@arndb.de/
Link: https://lore.kernel.org/lkml/20240326130647.7bfb1d92@gandalf.local.home/
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
All are MM related apart from a MAINTAINERS update. There is no
identifiable theme here - just singleton patches in various places.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZnyyJAAKCRDdBJ7gKXxA
jkcPAQDEsU/erozYjwo2Qq+B03micPCNGLJ6M4pG5t57snwnngEAkQClTiUCjmgK
Xb0H1KkV8ZJUt1gBUnlODXDSf1bhsAE=
=Uj0R
-----END PGP SIGNATURE-----
Merge tag 'mm-hotfixes-stable-2024-06-26-17-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"13 hotfixes, 7 are cc:stable.
All are MM related apart from a MAINTAINERS update. There is no
identifiable theme here - just singleton patches in various places"
* tag 'mm-hotfixes-stable-2024-06-26-17-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/memory: don't require head page for do_set_pmd()
mm/page_alloc: Separate THP PCP into movable and non-movable categories
nfs: drop the incorrect assertion in nfs_swap_rw()
mm/migrate: make migrate_pages_batch() stats consistent
MAINTAINERS: TPM DEVICE DRIVER: update the W-tag
selftests/mm:fix test_prctl_fork_exec return failure
mm: convert page type macros to enum
ocfs2: fix DIO failure due to insufficient transaction credits
kasan: fix bad call to unpoison_slab_object
mm: handle profiling for fake memory allocations during compaction
mm/slab: fix 'variable obj_exts set but not used' warning
/proc/pid/smaps: add mseal info for vma
mm: fix incorrect vbq reference in purge_fragmented_block
Two patches to fix kworker name formatting.
-----BEGIN PGP SIGNATURE-----
iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCZnyHUw4cdGpAa2VybmVs
Lm9yZwAKCRCxYfJx3gVYGV8AAQCi2flF10nHfE+nPsji8Z2FWtDKIzemsKgmxSnW
VvThlAD+MeK29fbz0uZzFa65TqIeckf7DGoGQpKnMzC7+FeJWAc=
=6POk
-----END PGP SIGNATURE-----
Merge tag 'wq-for-6.10-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fixes from Tejun Heo:
"Two patches to fix kworker name formatting"
* tag 'wq-for-6.10-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Increase worker desc's length to 32
workqueue: Refactor worker ID formatting and make wq_worker_comm() use full ID string
A couple of declarations in linux/syscalls.h are missing __user
annotations on their pointers, which can lead to warnings from
sparse because these don't match the implementation that have
the correct address space annotations.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This reverts commit f03e8c1060.
Let's roll back all of the serial core and printk console changes that
went into 6.10-rc1 as there still are problems with them that need to be
sorted out.
Link: https://lore.kernel.org/r/ZnpRozsdw6zbjqze@tlindgre-MOBL1
Reported-by: Petr Mladek <pmladek@suse.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since commit 5d0a661d80 ("mm/page_alloc: use only one PCP list for
THP-sized allocations") no longer differentiates the migration type of
pages in THP-sized PCP list, it's possible that non-movable allocation
requests may get a CMA page from the list, in some cases, it's not
acceptable.
If a large number of CMA memory are configured in system (for example, the
CMA memory accounts for 50% of the system memory), starting a virtual
machine with device passthrough will get stuck. During starting the
virtual machine, it will call pin_user_pages_remote(..., FOLL_LONGTERM,
...) to pin memory. Normally if a page is present and in CMA area,
pin_user_pages_remote() will migrate the page from CMA area to non-CMA
area because of FOLL_LONGTERM flag. But if non-movable allocation
requests return CMA memory, migrate_longterm_unpinnable_pages() will
migrate a CMA page to another CMA page, which will fail to pass the check
in check_and_migrate_movable_pages() and cause migration endless.
Call trace:
pin_user_pages_remote
--__gup_longterm_locked // endless loops in this function
----_get_user_pages_locked
----check_and_migrate_movable_pages
------migrate_longterm_unpinnable_pages
--------alloc_migration_target
This problem will also have a negative impact on CMA itself. For example,
when CMA is borrowed by THP, and we need to reclaim it through cma_alloc()
or dma_alloc_coherent(), we must move those pages out to ensure CMA's
users can retrieve that contigous memory. Currently, CMA's memory is
occupied by non-movable pages, meaning we can't relocate them. As a
result, cma_alloc() is more likely to fail.
To fix the problem above, we add one PCP list for THP, which will not
introduce a new cacheline for struct per_cpu_pages. THP will have 2 PCP
lists, one PCP list is used by MOVABLE allocation, and the other PCP list
is used by UNMOVABLE allocation. MOVABLE allocation contains GPF_MOVABLE,
and UNMOVABLE allocation contains GFP_UNMOVABLE and GFP_RECLAIMABLE.
Link: https://lkml.kernel.org/r/1718845190-4456-1-git-send-email-yangge1116@126.com
Fixes: 5d0a661d80 ("mm/page_alloc: use only one PCP list for THP-sized allocations")
Signed-off-by: yangge <yangge1116@126.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <21cnbao@gmail.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Changing PG_slab from a page flag to a page type in commit 46df8e73a4
("mm: free up PG_slab") in has the unintended consequence of removing the
PG_slab constant from kernel debuginfo. The commit does add the value to
the vmcoreinfo note, which allows debuggers to find the value without
hardcoding it. However it's most flexible to continue representing the
constant with an enum. To that end, convert the page type fields into an
enum. Debuggers will now be able to detect that PG_slab's type has
changed from enum pageflags to enum pagetype.
Link: https://lkml.kernel.org/r/20240607202954.1198180-1-stephen.s.brennan@oracle.com
Fixes: 46df8e73a4 ("mm: free up PG_slab")
Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hao Ge <gehao@kylinos.cn>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Omar Sandoval <osandov@osandov.com>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
When the intermediate CQE aux cache got removed, any usage of the this
member went away. As it isn't used anymore, kill it.
Fixes: 902ce82c2a ("io_uring: get rid of intermediate aux cqe caches")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The old ftruncate() syscall, using the 32-bit off_t misses a sign
extension when called in compat mode on 64-bit architectures. As a
result, passing a negative length accidentally succeeds in truncating
to file size between 2GiB and 4GiB.
Changing the type of the compat syscall to the signed compat_off_t
changes the behavior so it instead returns -EINVAL.
The native entry point, the truncate() syscall and the corresponding
loff_t based variants are all correct already and do not suffer
from this mistake.
Fixes: 3f6d078d4a ("fix compat truncate/ftruncate")
Reviewed-by: Christian Brauner <brauner@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This reverts commit 7bfb915a59.
This commit broke pxa and omap-serial, because it inhibited them from
calling stop_tx() if their TX FIFOs weren't completely empty. This
resulted in these two drivers hanging during transmits because the TX
interrupt would stay enabled, and a new TX interrupt would never fire.
Cc: stable@vger.kernel.org
Fixes: 7bfb915a59 ("serial: core: only stop transmit when HW fifo is empty")
Signed-off-by: Doug Brown <doug@schmorgal.com>
Link: https://lore.kernel.org/r/20240606195632.173255-2-doug@schmorgal.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
is not defined as well documentation fixes to start using inclusive
terminology. The drivers get paths in DT bindings fixed as well as
proper interrupt handling for the ocores driver.
-----BEGIN PGP SIGNATURE-----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=T67e
-----END PGP SIGNATURE-----
Merge tag 'i2c-for-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"The core gains placeholders for recently added functions when
CONFIG_I2C is not defined as well documentation fixes to start using
inclusive terminology.
The drivers get paths in DT bindings fixed as well as proper interrupt
handling for the ocores driver"
* tag 'i2c-for-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
docs: i2c: summary: be clearer with 'controller/target' and 'adapter/client' pairs
docs: i2c: summary: document 'local' and 'remote' targets
docs: i2c: summary: document use of inclusive language
docs: i2c: summary: update speed mode description
docs: i2c: summary: update I2C specification link
docs: i2c: summary: start sentences consistently.
i2c: Add nop fwnode operations
i2c: ocores: set IACK bit after core is enabled
dt-bindings: i2c: google,cros-ec-i2c-tunnel: correct path to i2c-controller schema
dt-bindings: i2c: atmel,at91sam: correct path to i2c-controller schema
Use numa_valid_node() function to verify that nid is a valid node ID
instead of inconsistent comparisons with either NUMA_NO_NODE or
MAX_NUMNODES.
-----BEGIN PGP SIGNATURE-----
iQFEBAABCgAuFiEEeOVYVaWZL5900a/pOQOGJssO/ZEFAmZ3vm8QHHJwcHRAa2Vy
bmVsLm9yZwAKCRA5A4Ymyw79kV6DB/41uPq1Dr2hk8ZtBEyaZg/XTA1WU8rc95PY
NqnWsrV1MjNt7ve2vBhZtirI+x8QIkpa/WV4y1qma2iBju1bOzkOw1o3VBwSeFMi
hTyLK9IFbJi9bF8xk4Lp/Km0VagpCAJLdWFdxzQCvtUfN2AZHNA+s3nk8VQIjnyj
glY7fdl9j6vtCRkT/5F0tETF8RfaoMuldwJGSIVjCQIk2oBkcPKnWcG4UQaVs2mP
F0UPQtNJxL+NCk/VGccsWhXONJ7amHK+Qq6xWZaC9MLAaoRAXDg05/S+t2m1iZxt
3HNBtrSPagNo7xTDsZ4sF+z+3YFk18QWKykRs2XXNfAapF6Ox2vs
=vZLS
-----END PGP SIGNATURE-----
Merge tag 'fixes-2024-06-23' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock fix from Mike Rapoport:
"Fix fragility in checks for unset node ID.
Use numa_valid_node() function to verify that nid is a valid node
ID instead of inconsistent comparisons with either NUMA_NO_NODE or
MAX_NUMNODES"
* tag 'fixes-2024-06-23' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
memblock: use numa_valid_node() helper to check for invalid node ID
Provide new primitives for solving a lifetime issue with bcachefs
btree_trans objects.
closure_sync_return(): like closure_sync(), wait synchronously for any
outstanding gets. like closure_return, the closure is considered
"finished" and the ref left at 0.
closure_get_not_zero(): get a ref on a closure if it's alive, i.e. the
ref is not zero.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
A number of fixes that have built up for SPI, a bunch of driver specific
ones including an unfortunate revert of an optimisation for the i.MX
driver which was causing issues with some configurations, plus a couple
of core fixes for the rarely used octal mode and for a bad interaction
between multi-CS support and target mode.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmZ2+ekACgkQJNaLcl1U
h9DD8Af/fGg7Sf7Ajt8IVI4D33+4SujFWHmu0ELgZVS4k7i+BpiZFJwHpKsfX0eN
I1/gVq5K6SJc1n1kiR2z2xCGD4JL0uqwk8y6QhARGnwQUVNrcsrM6TvT9N8uRelB
tEoCfDu8Wj2KNLHn5v4LL4uNnIEBamOHbRVTVq62JcXawgVZiiLQT436APXaS7uq
JstmiaiRzFVSQfoU2SBpbvXwp8QjqeV3l02DKwaafpoiMpccaUz2TNAXytXysHkE
h3je8uFMU+yYqK3G8t9HQQQema3GHFi1NtK472TDQe3FxZr8IzW6Gy/iFRArcSZV
rVEP07Q/X5OlK5LAs/hFbl+sEzkYbw==
=8xay
-----END PGP SIGNATURE-----
Merge tag 'spi-fix-v6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A number of fixes that have built up for SPI, a bunch of driver
specific ones including an unfortunate revert of an optimisation for
the i.MX driver which was causing issues with some configurations,
plus a couple of core fixes for the rarely used octal mode and for a
bad interaction between multi-CS support and target mode"
* tag 'spi-fix-v6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: spi-imx: imx51: revert burst length calculation back to bits_per_word
spi: Fix SPI slave probe failure
spi: Fix OCTAL mode support
spi: stm32: qspi: Clamp stm32_qspi_get_mode() output to CCR_BUSWIDTH_4
spi: stm32: qspi: Fix dual flash mode sanity test in stm32_qspi_setup()
spi: cs42l43: Drop cs35l56 SPI speed down to 11MHz
spi: cs42l43: Correct SPI root clock speed
The RDMA transport defines values for TSAS, but it cannot be changed as
we only support the 'connected' mode.
So to avoid errors during reconfiguration we should allow to write the
current value.
Fixes: 3f123494db ("nvmet: make TCP sectype settable via configfs")
Signed-off-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
PRTYPE is the provider type, not the QP service type.
Fixes: eb793e2c92 ("nvme.h: add NVMe over Fabrics definitions")
Signed-off-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Add nop variants of i2c_find_device_by_fwnode(),
i2c_find_adapter_by_fwnode() and i2c_get_adapter_by_fwnode() for use
without CONFIG_I2C.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Current release - regressions:
- ipv6: bring NLM_DONE out to a separate recv() again
Current release - new code bugs:
- wifi: cfg80211: wext: set ssids=NULL for passive scans via old wext API
Previous releases - regressions:
- wifi: mac80211: fix monitor channel setting with chanctx emulation
(probably most awaited of the fixes in this PR, tracked by Thorsten)
- usb: ax88179_178a: bring back reset on init, if PHY is disconnected
- bpf: fix UML x86_64 compile failure with BPF
- bpf: avoid splat in pskb_pull_reason(), sanity check added can be hit
with malicious BPF
- eth: mvpp2: use slab_build_skb() for packets in slab, driver was
missed during API refactoring
- wifi: iwlwifi: add missing unlock of mvm mutex
Previous releases - always broken:
- ipv6: add a number of missing null-checks for in6_dev_get(), in case
IPv6 disabling races with the datapath
- bpf: fix reg_set_min_max corruption of fake_reg
- sched: act_ct: add netns as part of the key of tcf_ct_flow_table
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-----BEGIN PGP SIGNATURE-----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=Lb9b
-----END PGP SIGNATURE-----
Merge tag 'net-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from wireless, bpf and netfilter.
Happy summer solstice! The line count is a bit inflated by a selftest
and update to a driver's FW interface header, in reality this is
slightly below average for us. We are expecting one driver fix from
Intel, but there are no big known issues.
Current release - regressions:
- ipv6: bring NLM_DONE out to a separate recv() again
Current release - new code bugs:
- wifi: cfg80211: wext: set ssids=NULL for passive scans via old wext API
Previous releases - regressions:
- wifi: mac80211: fix monitor channel setting with chanctx emulation
(probably most awaited of the fixes in this PR, tracked by Thorsten)
- usb: ax88179_178a: bring back reset on init, if PHY is disconnected
- bpf: fix UML x86_64 compile failure with BPF
- bpf: avoid splat in pskb_pull_reason(), sanity check added can be hit
with malicious BPF
- eth: mvpp2: use slab_build_skb() for packets in slab, driver was
missed during API refactoring
- wifi: iwlwifi: add missing unlock of mvm mutex
Previous releases - always broken:
- ipv6: add a number of missing null-checks for in6_dev_get(), in case
IPv6 disabling races with the datapath
- bpf: fix reg_set_min_max corruption of fake_reg
- sched: act_ct: add netns as part of the key of tcf_ct_flow_table"
* tag 'net-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (63 commits)
net: usb: rtl8150 fix unintiatilzed variables in rtl8150_get_link_ksettings
selftests: virtio_net: add forgotten config options
bnxt_en: Restore PTP tx_avail count in case of skb_pad() error
bnxt_en: Set TSO max segs on devices with limits
bnxt_en: Update firmware interface to 1.10.3.44
net: stmmac: Assign configured channel value to EXTTS event
net: do not leave a dangling sk pointer, when socket creation fails
net/tcp_ao: Don't leak ao_info on error-path
ice: Fix VSI list rule with ICE_SW_LKUP_LAST type
ipv6: bring NLM_DONE out to a separate recv() again
selftests: add selftest for the SRv6 End.DX6 behavior with netfilter
selftests: add selftest for the SRv6 End.DX4 behavior with netfilter
netfilter: move the sysctl nf_hooks_lwtunnel into the netfilter core
seg6: fix parameter passing when calling NF_HOOK() in End.DX4 and End.DX6 behaviors
netfilter: ipset: Fix suspicious rcu_dereference_protected()
selftests: openvswitch: Set value to nla flags.
octeontx2-pf: Fix linking objects into multiple modules
octeontx2-pf: Add error handling to VLAN unoffload handling
virtio_net: fixing XDP for fully checksummed packets handling
virtio_net: checksum offloading handling fix
...
-----BEGIN PGP SIGNATURE-----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=nYky
-----END PGP SIGNATURE-----
Merge tag 'lsm-pr-20240617' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
Pull lsm fix from Paul Moore:
"A single LSM/IMA patch to fix a problem caused by sleeping while in a
RCU critical section"
* tag 'lsm-pr-20240617' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
ima: Avoid blocking in RCU read-side critical section
Mainly MM singleton fixes. And a couple of ocfs2 regression fixes.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZnCEQAAKCRDdBJ7gKXxA
jmgSAQDk3BYs1n67cnwx/Zi04yMYDyfYTCYg2udPfT2a+GpmbwD+N5dJd/vCztXH
5eLpP11xd/yr2+I9FefyZeUuA80KtgQ=
=2agY
-----END PGP SIGNATURE-----
Merge tag 'mm-hotfixes-stable-2024-06-17-11-43' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"Mainly MM singleton fixes. And a couple of ocfs2 regression fixes"
* tag 'mm-hotfixes-stable-2024-06-17-11-43' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
kcov: don't lose track of remote references during softirqs
mm: shmem: fix getting incorrect lruvec when replacing a shmem folio
mm/debug_vm_pgtable: drop RANDOM_ORVALUE trick
mm: fix possible OOB in numa_rebuild_large_mapping()
mm/migrate: fix kernel BUG at mm/compaction.c:2761!
selftests: mm: make map_fixed_noreplace test names stable
mm/memfd: add documentation for MFD_NOEXEC_SEAL MFD_EXEC
mm: mmap: allow for the maximum number of bits for randomizing mmap_base by default
gcov: add support for GCC 14
zap_pid_ns_processes: clear TIF_NOTIFY_SIGNAL along with TIF_SIGPENDING
mm: huge_memory: fix misused mapping_large_folio_support() for anon folios
lib/alloc_tag: fix RCU imbalance in pgalloc_tag_get()
lib/alloc_tag: do not register sysctl interface when CONFIG_SYSCTL=n
MAINTAINERS: remove Lorenzo as vmalloc reviewer
Revert "mm: init_mlocked_on_free_v3"
mm/page_table_check: fix crash on ZONE_DEVICE
gcc: disable '-Warray-bounds' for gcc-9
ocfs2: fix NULL pointer dereference in ocfs2_abort_trigger()
ocfs2: fix NULL pointer dereference in ocfs2_journal_dirty()
Here are some small USB and Thunderbolt driver fixes for 6.10-rc4.
Included in here are:
- thunderbolt debugfs bugfix
- USB typec bugfixes
- kcov usb bugfix
- xhci bugfixes
- usb-storage bugfix
- dt-bindings bugfix
- cdc-wdm log message spam bugfix
All of these, except for the last cdc-wdm log level change, have been in
linux-next for a while with no reported problems. The cdc-wdm bugfix
has been tested by syzbot and proved to fix the reported cpu lockup
issues when the log is constantly spammed by a broken device.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZm68wA8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ylZmgCfeRfuQkFXgRs1LYZ8x2g2FfHmxFgAoJe+2RAW
yR6Lp2bPhH+YQS3rhjNL
=hNwg
-----END PGP SIGNATURE-----
Merge tag 'usb-6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt fixes from Greg KH:
"Here are some small USB and Thunderbolt driver fixes for 6.10-rc4.
Included in here are:
- thunderbolt debugfs bugfix
- USB typec bugfixes
- kcov usb bugfix
- xhci bugfixes
- usb-storage bugfix
- dt-bindings bugfix
- cdc-wdm log message spam bugfix
All of these, except for the last cdc-wdm log level change, have been
in linux-next for a while with no reported problems. The cdc-wdm
bugfix has been tested by syzbot and proved to fix the reported cpu
lockup issues when the log is constantly spammed by a broken device"
* tag 'usb-6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: class: cdc-wdm: Fix CPU lockup caused by excessive log messages
xhci: Handle TD clearing for multiple streams case
xhci: Apply broken streams quirk to Etron EJ188 xHCI host
xhci: Apply reset resume quirk to Etron EJ188 xHCI host
xhci: Set correct transferred length for cancelled bulk transfers
usb-storage: alauda: Check whether the media is initialized
usb: typec: ucsi: Ack also failed Get Error commands
kcov, usb: disable interrupts in kcov_remote_start_usb_softirq
dt-bindings: usb: realtek,rts5411: Add missing "additionalProperties" on child nodes
usb: typec: tcpm: Ignore received Hard Reset in TOGGLING state
usb: typec: tcpm: fix use-after-free case in tcpm_register_source_caps
USB: xen-hcd: Traverse host/ when CONFIG_USB_XEN_HCD is selected
usb: typec: ucsi: glink: increase max ports for x1e80100
Revert "usb: chipidea: move ci_ulpi_init after the phy initialization"
thunderbolt: debugfs: Fix margin debugfs node creation condition
Here are 3 small changes for 6.10-rc4 that resolve reported problems,
and finally drop an unused api call. These are:
- removal of devm_device_add_groups(), all the callers of this are
finally gone after the 6.10-rc1 merge (changes came in through
different trees), so it's safe to remove.
- much reported sysfs build error fixed up for systems that did not
have sysfs enabled
- driver core sync issue fix for a many reported issue over the years
that no one really paid much attention to, until Dirk finally
tracked down the real issue and made the "obviously correct and
simple" fix for it.
All of these have been in linux-next for over a week with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZm7A2w8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ykqCwCgxcSy9dsZPvXLjIUGWlT7pJk6a4MAoMUlXWF5
vjwwgsA0XOOaWxQc9XhT
=AM42
-----END PGP SIGNATURE-----
Merge tag 'driver-core-6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and sysfs fixes from Greg KH:
"Here are three small changes for 6.10-rc4 that resolve reported
problems, and finally drop an unused api call. These are:
- removal of devm_device_add_groups(), all the callers of this are
finally gone after the 6.10-rc1 merge (changes came in through
different trees), so it's safe to remove.
- much reported sysfs build error fixed up for systems that did not
have sysfs enabled
- driver core sync issue fix for a many reported issue over the years
that no one really paid much attention to, until Dirk finally
tracked down the real issue and made the "obviously correct and
simple" fix for it.
All of these have been in linux-next for over a week with no reported
problems"
* tag 'driver-core-6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
drivers: core: synchronize really_probe() and dev_uevent()
sysfs: Unbreak the build around sysfs_bin_attr_simple_read()
driver core: remove devm_device_add_groups()
Introduce numa_valid_node(nid) that verifies that nid is a valid node ID
and use that instead of comparing nid parameter with either NUMA_NO_NODE
or MAX_NUMNODES.
This makes the checks for valid node IDs consistent and more robust and
allows to get rid of multiple WARNings.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
In kcov_remote_start()/kcov_remote_stop(), we swap the previous KCOV
metadata of the current task into a per-CPU variable. However, the
kcov_mode_enabled(mode) check is not sufficient in the case of remote KCOV
coverage: current->kcov_mode always remains KCOV_MODE_DISABLED for remote
KCOV objects.
If the original task that has invoked the KCOV_REMOTE_ENABLE ioctl happens
to get interrupted and kcov_remote_start() is called, it ultimately leads
to kcov_remote_stop() NOT restoring the original KCOV reference. So when
the task exits, all registered remote KCOV handles remain active forever.
The most uncomfortable effect (at least for syzkaller) is that the bug
prevents the reuse of the same /sys/kernel/debug/kcov descriptor. If
we obtain it in the parent process and then e.g. drop some
capabilities and continuously fork to execute individual programs, at
some point current->kcov of the forked process is lost,
kcov_task_exit() takes no action, and all KCOV_REMOTE_ENABLE ioctls
calls from subsequent forks fail.
And, yes, the efficiency is also affected if we keep on losing remote
kcov objects.
a) kcov_remote_map keeps on growing forever.
b) (If I'm not mistaken), we're also not freeing the memory referenced
by kcov->area.
Fix it by introducing a special kcov_mode that is assigned to the task
that owns a KCOV remote object. It makes kcov_mode_enabled() return true
and yet does not trigger coverage collection in __sanitizer_cov_trace_pc()
and write_comp_data().
[nogikh@google.com: replace WRITE_ONCE() with an ordinary assignment]
Link: https://lkml.kernel.org/r/20240614171221.2837584-1-nogikh@google.com
Link: https://lkml.kernel.org/r/20240611133229.527822-1-nogikh@google.com
Fixes: 5ff3b30ab5 ("kcov: collect coverage from interrupts")
Signed-off-by: Aleksandr Nogikh <nogikh@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Tested-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Marco Elver <elver@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
When I did a large folios split test, a WARNING "[ 5059.122759][ T166]
Cannot split file folio to non-0 order" was triggered. But the test cases
are only for anonmous folios. while mapping_large_folio_support() is only
reasonable for page cache folios.
In split_huge_page_to_list_to_order(), the folio passed to
mapping_large_folio_support() maybe anonmous folio. The folio_test_anon()
check is missing. So the split of the anonmous THP is failed. This is
also the same for shmem_mapping(). We'd better add a check for both. But
the shmem_mapping() in __split_huge_page() is not involved, as for
anonmous folios, the end parameter is set to -1, so (head[i].index >= end)
is always false. shmem_mapping() is not called.
Also add a VM_WARN_ON_ONCE() in mapping_large_folio_support() for anon
mapping, So we can detect the wrong use more easily.
THP folios maybe exist in the pagecache even the file system doesn't
support large folio, it is because when CONFIG_TRANSPARENT_HUGEPAGE is
enabled, khugepaged will try to collapse read-only file-backed pages to
THP. But the mapping does not actually support multi order large folios
properly.
Using /sys/kernel/debug/split_huge_pages to verify this, with this patch,
large anon THP is successfully split and the warning is ceased.
Link: https://lkml.kernel.org/r/202406071740485174hcFl7jRxncsHDtI-Pz-o@zte.com.cn
Fixes: c010d47f10 ("mm: thp: split huge page to any lower order pages")
Reviewed-by: Barry Song <baohua@kernel.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Ran Xiaokai <ran.xiaokai@zte.com.cn>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: xu xin <xu.xin16@zte.com.cn>
Cc: Yang Yang <yang.yang29@zte.com.cn>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
put_page_tag_ref() should be called only when get_page_tag_ref() returns a
valid reference because only in that case get_page_tag_ref() enters RCU
read section while put_page_tag_ref() will call rcu_read_unlock() even if
the provided reference is NULL. Fix pgalloc_tag_get() which does not
follow this rule causing RCU imbalance. Add a warning in
put_page_tag_ref() to catch any future mistakes.
Link: https://lkml.kernel.org/r/20240601233840.617458-1-surenb@google.com
Fixes: cc92eba1c8 ("mm: fix non-compound multi-order memory accounting in __free_pages")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202405271029.6d2f9c4c-lkp@intel.com
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Kees Cook <keescook@chromium.org>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
There was insufficient review and no agreement that this is the right
approach.
There are serious flaws with the implementation that make processes using
mlock() not even work with simple fork() [1] and we get reliable crashes
when rebooting.
Further, simply because we might be unmapping a single PTE of a large
mlocked folio, we shouldn't zero out the whole folio.
... especially because the code can also *corrupt* urelated memory because
kernel_init_pages(page, folio_nr_pages(folio));
Could end up writing outside of the actual folio if we work with a tail
page.
Let's revert it. Once there is agreement that this is the right approach,
the issues were fixed and there was reasonable review and proper testing,
we can consider it again.
[1] https://lkml.kernel.org/r/4da9da2f-73e4-45fd-b62f-a8a513314057@redhat.com
Link: https://lkml.kernel.org/r/20240605091710.38961-1-david@redhat.com
Fixes: ba42b524a0 ("mm: init_mlocked_on_free_v3")
Signed-off-by: David Hildenbrand <david@redhat.com>
Reported-by: David Wang <00107082@163.com>
Closes: https://lore.kernel.org/lkml/20240528151340.4282-1-00107082@163.com/
Reported-by: Lance Yang <ioworker0@gmail.com>
Closes: https://lkml.kernel.org/r/20240601140917.43562-1-ioworker0@gmail.com
Acked-by: Lance Yang <ioworker0@gmail.com>
Cc: York Jasper Niebuhr <yjnworkstation@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
- Fix long standing lockdep issue of using remap_pfn_range() from
the vfio-pci fault handler for mapping device MMIO. Commit
ba168b52bf ("mm: use rwsem assertion macros for mmap_lock") now
exposes this as a warning forcing this to be addressed.
remap_pfn_range() was used here to efficiently map the entire vma,
but it really never should have been used in the fault handler and
doesn't handle concurrency, which introduced complex locking. We
also needed to track vmas mapping the device memory in order to zap
those vmas when the memory is disabled resulting in a vma list.
Instead of all that mess, setup an address space on the device fd
such that we can use unmap_mapping_range() for zapping to avoid
the tracking overhead and use the standard vmf_insert_pfn() to
insert mappings on fault. For now we'll iterate the vma and
opportunistically try to insert mappings for the entire vma. This
aligns with typical use cases, but hopefully in the future we can
drop the iterative approach and make use of huge_fault instead,
once vmf_insert_pfn{pud,pmd}() learn to handle pfnmaps.
(Alex Williamson)
-----BEGIN PGP SIGNATURE-----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=bSXX
-----END PGP SIGNATURE-----
Merge tag 'vfio-v6.10-rc4' of https://github.com/awilliam/linux-vfio
Pull VFIO fixes from Alex Williamson:
"Fix long standing lockdep issue of using remap_pfn_range() from the
vfio-pci fault handler for mapping device MMIO. Commit ba168b52bf
("mm: use rwsem assertion macros for mmap_lock") now exposes this as a
warning forcing this to be addressed.
remap_pfn_range() was used here to efficiently map the entire vma, but
it really never should have been used in the fault handler and doesn't
handle concurrency, which introduced complex locking. We also needed
to track vmas mapping the device memory in order to zap those vmas
when the memory is disabled resulting in a vma list.
Instead of all that mess, setup an address space on the device fd
such that we can use unmap_mapping_range() for zapping to avoid the
tracking overhead and use the standard vmf_insert_pfn() to insert
mappings on fault.
For now we'll iterate the vma and opportunistically try to insert
mappings for the entire vma. This aligns with typical use cases, but
hopefully in the future we can drop the iterative approach and make
use of huge_fault instead, once vmf_insert_pfn{pud,pmd}() learn to
handle pfnmaps"
* tag 'vfio-v6.10-rc4' of https://github.com/awilliam/linux-vfio:
vfio/pci: Insert full vma on mmap'd MMIO fault
vfio/pci: Use unmap_mapping_range()
vfio: Create vfio_fs_type with inode per device
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZmykPwAKCRDbK58LschI
g7LOAQDVPkJ9k50/xrWIBtgvkGq1jCrMlpwEh49QYO0xoqh1IgEA+6Xje9jCIsdp
AHz9WmZ6G0EpTuDgFq50K1NVZ7MgSQE=
=zKfv
-----END PGP SIGNATURE-----
Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2024-06-14
We've added 8 non-merge commits during the last 2 day(s) which contain
a total of 9 files changed, 92 insertions(+), 11 deletions(-).
The main changes are:
1) Silence a syzkaller splat under CONFIG_DEBUG_NET=y in pskb_pull_reason()
triggered via __bpf_try_make_writable(), from Florian Westphal.
2) Fix removal of kfuncs during linking phase which then throws a kernel
build warning via resolve_btfids about unresolved symbols,
from Tony Ambardar.
3) Fix a UML x86_64 compilation failure from BPF as pcpu_hot symbol
is not available on User Mode Linux, from Maciej Żenczykowski.
4) Fix a register corruption in reg_set_min_max triggering an invariant
violation in BPF verifier, from Daniel Borkmann.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Harden __bpf_kfunc tag against linker kfunc removal
compiler_types.h: Define __retain for __attribute__((__retain__))
bpf: Avoid splat in pskb_pull_reason
bpf: fix UML x86_64 compile failure
selftests/bpf: Add test coverage for reg_set_min_max handling
bpf: Reduce stack consumption in check_stack_write_fixed_off
bpf: Fix reg_set_min_max corruption of fake_reg
MAINTAINERS: mailmap: Update Stanislav's email address
====================
Link: https://lore.kernel.org/r/20240614203223.26500-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-----BEGIN PGP SIGNATURE-----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=p7jM
-----END PGP SIGNATURE-----
Merge tag 'block-6.10-20240614' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- NVMe pull request via Keith:
- Discard double free on error conditions (Chunguang)
- Target Fixes (Daniel)
- Namespace detachment regression fix (Keith)
- Fix for an issue with flush requests and queuelist reuse (Chengming)
- nbd sparse annotation fixes (Christoph)
- unmap and free bio mapped data via submitter (Anuj)
- loop discard/fallocate unsupported fix (Cyril)
- Fix for the zoned write plugging added in this release (Damien)
- sed-opal wrong address fix (Su)
* tag 'block-6.10-20240614' of git://git.kernel.dk/linux:
loop: Disable fallocate() zero and discard if not supported
nvme: fix namespace removal list
nbd: Remove __force casts
nvmet: always initialize cqe.result
nvmet-passthru: propagate status from id override functions
nvme: avoid double free special payload
block: unmap and free user mapped integrity via submitter
block: fix request.queuelist usage in flush
block: Optimize disk zone resource cleanup
block: sed-opal: avoid possible wrong address reference in read_sed_opal_key()
-----BEGIN PGP SIGNATURE-----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=bA5c
-----END PGP SIGNATURE-----
Merge tag 'io_uring-6.10-20240614' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
"Two fixes from Pavel headed to stable:
- Ensure that the task state is correct before attempting to grab a
mutex
- Split cancel sequence flag into a separate variable, as it can get
set by someone not owning the request (but holding the ctx lock)"
* tag 'io_uring-6.10-20240614' of git://git.kernel.dk/linux:
io_uring: fix cancellation overwriting req->flags
io_uring/rsrc: don't lock while !TASK_RUNNING
BPF kfuncs are often not directly referenced and may be inadvertently
removed by optimization steps during kernel builds, thus the __bpf_kfunc
tag mitigates against this removal by including the __used macro. However,
this macro alone does not prevent removal during linking, and may still
yield build warnings (e.g. on mips64el):
[...]
LD vmlinux
BTFIDS vmlinux
WARN: resolve_btfids: unresolved symbol bpf_verify_pkcs7_signature
WARN: resolve_btfids: unresolved symbol bpf_lookup_user_key
WARN: resolve_btfids: unresolved symbol bpf_lookup_system_key
WARN: resolve_btfids: unresolved symbol bpf_key_put
WARN: resolve_btfids: unresolved symbol bpf_iter_task_next
WARN: resolve_btfids: unresolved symbol bpf_iter_css_task_new
WARN: resolve_btfids: unresolved symbol bpf_get_file_xattr
WARN: resolve_btfids: unresolved symbol bpf_ct_insert_entry
WARN: resolve_btfids: unresolved symbol bpf_cgroup_release
WARN: resolve_btfids: unresolved symbol bpf_cgroup_from_id
WARN: resolve_btfids: unresolved symbol bpf_cgroup_acquire
WARN: resolve_btfids: unresolved symbol bpf_arena_free_pages
NM System.map
SORTTAB vmlinux
OBJCOPY vmlinux.32
[...]
Update the __bpf_kfunc tag to better guard against linker optimization by
including the new __retain compiler macro, which fixes the warnings above.
Verify the __retain macro with readelf by checking object flags for 'R':
$ readelf -Wa kernel/trace/bpf_trace.o
Section Headers:
[Nr] Name Type Address Off Size ES Flg Lk Inf Al
[...]
[178] .text.bpf_key_put PROGBITS 00000000 6420 0050 00 AXR 0 0 8
[...]
Key to Flags:
[...]
R (retain), D (mbind), p (processor specific)
Fixes: 57e7c169cd ("bpf: Add __bpf_kfunc tag for marking kernel functions as kfuncs")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Tony Ambardar <tony.ambardar@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Yonghong Song <yonghong.song@linux.dev>
Closes: https://lore.kernel.org/r/202401211357.OCX9yllM-lkp@intel.com/
Link: https://lore.kernel.org/bpf/ZlmGoT9KiYLZd91S@krava/T/
Link: https://lore.kernel.org/bpf/e9c64e9b5c073dabd457ff45128aabcab7630098.1717477560.git.Tony.Ambardar@gmail.com
Some code includes the __used macro to prevent functions and data from
being optimized out. This macro implements __attribute__((__used__)),
which operates at the compiler and IR-level, and so still allows a linker
to remove objects intended to be kept.
Compilers supporting __attribute__((__retain__)) can address this gap by
setting the flag SHF_GNU_RETAIN on the section of a function/variable,
indicating to the linker the object should be retained. This attribute is
available since gcc 11, clang 13, and binutils 2.36.
Provide a __retain macro implementing __attribute__((__retain__)), whose
first user will be the '__bpf_kfunc' tag.
[ Additional remark from discussion:
Why is CONFIG_LTO_CLANG added here? The __used macro permits garbage
collection at section level, so CLANG_LTO_CLANG without
CONFIG_LD_DEAD_CODE_DATA_ELIMINATION should not change final section
dynamics?
The conditional guard was included to ensure consistent behaviour
between __retain and other features forcing split sections. In
particular, the same guard is used in vmlinux.lds.h to merge split
sections where needed. For example, using __retain in LLVM builds
without CONFIG_LTO was failing CI tests on kernel-patches/bpf because
the kernel didn't boot properly. And in further testing, the kernel
had no issues loading BPF kfunc modules with such split sections, so
the module (partial) linking scripts were left alone. ]
Signed-off-by: Tony Ambardar <tony.ambardar@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/bpf/ZlmGoT9KiYLZd91S@krava/T/
Link: https://lore.kernel.org/bpf/b31bca5a5e6765a0f32cc8c19b1d9cdbfaa822b5.1717477560.git.Tony.Ambardar@gmail.com
Only the current owner of a request is allowed to write into req->flags.
Hence, the cancellation path should never touch it. Add a new field
instead of the flag, move it into the 3rd cache line because it should
always be initialised. poll_refs can move further as polling is an
involved process anyway.
It's a minimal patch, in the future we can and should find a better
place for it and remove now unused REQ_F_CANCEL_SEQ.
Fixes: 521223d7c2 ("io_uring/cancel: don't default to setting req->work.cancel_seq")
Cc: stable@vger.kernel.org
Reported-by: Li Shi <sl1589472800@gmail.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/6827b129f8f0ad76fa9d1f0a773de938b240ffab.1718323430.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Juan reported that after doing some changes to buzzer [0] and implementing
a new fuzzing strategy guided by coverage, they noticed the following in
one of the probes:
[...]
13: (79) r6 = *(u64 *)(r0 +0) ; R0=map_value(ks=4,vs=8) R6_w=scalar()
14: (b7) r0 = 0 ; R0_w=0
15: (b4) w0 = -1 ; R0_w=0xffffffff
16: (74) w0 >>= 1 ; R0_w=0x7fffffff
17: (5c) w6 &= w0 ; R0_w=0x7fffffff R6_w=scalar(smin=smin32=0,smax=umax=umax32=0x7fffffff,var_off=(0x0; 0x7fffffff))
18: (44) w6 |= 2 ; R6_w=scalar(smin=umin=smin32=umin32=2,smax=umax=umax32=0x7fffffff,var_off=(0x2; 0x7ffffffd))
19: (56) if w6 != 0x7ffffffd goto pc+1
REG INVARIANTS VIOLATION (true_reg2): range bounds violation u64=[0x7fffffff, 0x7ffffffd] s64=[0x7fffffff, 0x7ffffffd] u32=[0x7fffffff, 0x7ffffffd] s32=[0x7fffffff, 0x7ffffffd] var_off=(0x7fffffff, 0x0)
REG INVARIANTS VIOLATION (false_reg1): range bounds violation u64=[0x7fffffff, 0x7ffffffd] s64=[0x7fffffff, 0x7ffffffd] u32=[0x7fffffff, 0x7ffffffd] s32=[0x7fffffff, 0x7ffffffd] var_off=(0x7fffffff, 0x0)
REG INVARIANTS VIOLATION (false_reg2): const tnum out of sync with range bounds u64=[0x0, 0xffffffffffffffff] s64=[0x8000000000000000, 0x7fffffffffffffff] u32=[0x0, 0xffffffff] s32=[0x80000000, 0x7fffffff] var_off=(0x7fffffff, 0x0)
19: R6_w=0x7fffffff
20: (95) exit
from 19 to 21: R0=0x7fffffff R6=scalar(smin=umin=smin32=umin32=2,smax=umax=smax32=umax32=0x7ffffffe,var_off=(0x2; 0x7ffffffd)) R7=map_ptr(ks=4,vs=8) R9=ctx() R10=fp0 fp-24=map_ptr(ks=4,vs=8) fp-40=mmmmmmmm
21: R0=0x7fffffff R6=scalar(smin=umin=smin32=umin32=2,smax=umax=smax32=umax32=0x7ffffffe,var_off=(0x2; 0x7ffffffd)) R7=map_ptr(ks=4,vs=8) R9=ctx() R10=fp0 fp-24=map_ptr(ks=4,vs=8) fp-40=mmmmmmmm
21: (14) w6 -= 2147483632 ; R6_w=scalar(smin=umin=umin32=2,smax=umax=0xffffffff,smin32=0x80000012,smax32=14,var_off=(0x2; 0xfffffffd))
22: (76) if w6 s>= 0xe goto pc+1 ; R6_w=scalar(smin=umin=umin32=2,smax=umax=0xffffffff,smin32=0x80000012,smax32=13,var_off=(0x2; 0xfffffffd))
23: (95) exit
from 22 to 24: R0=0x7fffffff R6_w=14 R7=map_ptr(ks=4,vs=8) R9=ctx() R10=fp0 fp-24=map_ptr(ks=4,vs=8) fp-40=mmmmmmmm
24: R0=0x7fffffff R6_w=14 R7=map_ptr(ks=4,vs=8) R9=ctx() R10=fp0 fp-24=map_ptr(ks=4,vs=8) fp-40=mmmmmmmm
24: (14) w6 -= 14 ; R6_w=0
[...]
What can be seen here is a register invariant violation on line 19. After
the binary-or in line 18, the verifier knows that bit 2 is set but knows
nothing about the rest of the content which was loaded from a map value,
meaning, range is [2,0x7fffffff] with var_off=(0x2; 0x7ffffffd). When in
line 19 the verifier analyzes the branch, it splits the register states
in reg_set_min_max() into the registers of the true branch (true_reg1,
true_reg2) and the registers of the false branch (false_reg1, false_reg2).
Since the test is w6 != 0x7ffffffd, the src_reg is a known constant.
Internally, the verifier creates a "fake" register initialized as scalar
to the value of 0x7ffffffd, and then passes it onto reg_set_min_max(). Now,
for line 19, it is mathematically impossible to take the false branch of
this program, yet the verifier analyzes it. It is impossible because the
second bit of r6 will be set due to the prior or operation and the
constant in the condition has that bit unset (hex(fd) == binary(1111 1101).
When the verifier first analyzes the false / fall-through branch, it will
compute an intersection between the var_off of r6 and of the constant. This
is because the verifier creates a "fake" register initialized to the value
of the constant. The intersection result later refines both registers in
regs_refine_cond_op():
[...]
t = tnum_intersect(tnum_subreg(reg1->var_off), tnum_subreg(reg2->var_off));
reg1->var_off = tnum_with_subreg(reg1->var_off, t);
reg2->var_off = tnum_with_subreg(reg2->var_off, t);
[...]
Since the verifier is analyzing the false branch of the conditional jump,
reg1 is equal to false_reg1 and reg2 is equal to false_reg2, i.e. the reg2
is the "fake" register that was meant to hold a constant value. The resulting
var_off of the intersection says that both registers now hold a known value
of var_off=(0x7fffffff, 0x0) or in other words: this operation manages to
make the verifier think that the "constant" value that was passed in the
jump operation now holds a different value.
Normally this would not be an issue since it should not influence the true
branch, however, false_reg2 and true_reg2 are pointers to the same "fake"
register. Meaning, the false branch can influence the results of the true
branch. In line 24, the verifier assumes R6_w=0, but the actual runtime
value in this case is 1. The fix is simply not passing in the same "fake"
register location as inputs to reg_set_min_max(), but instead making a
copy. Moving the fake_reg into the env also reduces stack consumption by
120 bytes. With this, the verifier successfully rejects invalid accesses
from the test program.
[0] https://github.com/google/buzzer
Fixes: 67420501e8 ("bpf: generalize reg_set_min_max() to handle non-const register comparisons")
Reported-by: Juan José López Jaimez <jjlopezjaimez@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/20240613115310.25383-1-daniel@iogearbox.net
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Current release - regressions:
- Revert "igc: fix a log entry using uninitialized netdev",
it traded lack of netdev name in a printk() for a crash
Previous releases - regressions:
- Bluetooth: L2CAP: fix rejecting L2CAP_CONN_PARAM_UPDATE_REQ
- geneve: fix incorrectly setting lengths of inner headers in the skb,
confusing the drivers and causing mangled packets
- sched: initialize noop_qdisc owner to avoid false-positive recursion
detection (recursing on CPU 0), which bubbles up to user space as
a sendmsg() error, while noop_qdisc should silently drop
- netdevsim: fix backwards compatibility in nsim_get_iflink()
Previous releases - always broken:
- netfilter: ipset: fix race between namespace cleanup and gc
in the list:set type
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-----BEGIN PGP SIGNATURE-----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=cyRR
-----END PGP SIGNATURE-----
Merge tag 'net-6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bluetooth and netfilter.
Slim pickings this time, probably a combination of summer, DevConf.cz,
and the end of first half of the year at corporations.
Current release - regressions:
- Revert "igc: fix a log entry using uninitialized netdev", it traded
lack of netdev name in a printk() for a crash
Previous releases - regressions:
- Bluetooth: L2CAP: fix rejecting L2CAP_CONN_PARAM_UPDATE_REQ
- geneve: fix incorrectly setting lengths of inner headers in the
skb, confusing the drivers and causing mangled packets
- sched: initialize noop_qdisc owner to avoid false-positive
recursion detection (recursing on CPU 0), which bubbles up to user
space as a sendmsg() error, while noop_qdisc should silently drop
- netdevsim: fix backwards compatibility in nsim_get_iflink()
Previous releases - always broken:
- netfilter: ipset: fix race between namespace cleanup and gc in the
list:set type"
* tag 'net-6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (35 commits)
bnxt_en: Adjust logging of firmware messages in case of released token in __hwrm_send()
af_unix: Read with MSG_PEEK loops if the first unread byte is OOB
bnxt_en: Cap the size of HWRM_PORT_PHY_QCFG forwarded response
gve: Clear napi->skb before dev_kfree_skb_any()
ionic: fix use after netif_napi_del()
Revert "igc: fix a log entry using uninitialized netdev"
net: bridge: mst: fix suspicious rcu usage in br_mst_set_state
net: bridge: mst: pass vlan group directly to br_mst_vlan_set_state
net/ipv6: Fix the RT cache flush via sysctl using a previous delay
net: stmmac: replace priv->speed with the portTransmitRate from the tc-cbs parameters
gve: ignore nonrelevant GSO type bits when processing TSO headers
net: pse-pd: Use EOPNOTSUPP error code instead of ENOTSUPP
netfilter: Use flowlabel flow key when re-routing mangled packets
netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type
netfilter: nft_inner: validate mandatory meta and payload
tcp: use signed arithmetic in tcp_rtx_probe0_timed_out()
mailmap: map Geliang's new email address
mptcp: pm: update add_addr counters after connect
mptcp: pm: inc RmAddr MIB counter once per RM_ADDR ID
mptcp: ensure snd_una is properly initialized on connect
...
The user mapped intergity is copied back and unpinned by
bio_integrity_free which is a low-level routine. Do it via the submitter
rather than doing it in the low-level block layer code, to split the
submitter side from the consumer side of the bio.
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20240610111144.14647-1-anuj20.g@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP as reported by
checkpatch script.
Fixes: 18ff0bcda6 ("ethtool: add interface to interact with Ethernet Power Equipment")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://lore.kernel.org/r/20240610083426.740660-1-kory.maincent@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
