Avoiding the zeroing of the vma tree in mmap_region() introduced a race
with truncate in the page table walk. To avoid any races, create a hole
in the rmap during the operation by clearing the pagetable entries earlier
under the mmap write lock and (critically) before the new vma is installed
into the vma tree. The result is that the old vma(s) are left in the vma
tree, but free_pgtables() removes them from the rmap and clears the ptes
while holding the necessary locks.
This change extends the fix required for hugetblfs and the call_mmap()
function by moving the cleanup higher in the function and running it
unconditionally.
Link: https://lkml.kernel.org/r/20241016013455.2241533-1-Liam.Howlett@oracle.com
Fixes: f8d112a4e6 ("mm/mmap: avoid zeroing vma tree in mmap_region()")
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reported-by: Jann Horn <jannh@google.com>
Closes: https://lore.kernel.org/all/CAG48ez0ZpGzxi=-5O_uGQ0xKXOmbjeQ0LjZsRJ1Qtf2X5eOr1w@mail.gmail.com/
Reviewed-by: Jann Horn <jannh@google.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Under memory pressure it's possible for GFP_ATOMIC order-0 allocations to
fail even though free pages are available in the highatomic reserves.
GFP_ATOMIC allocations cannot trigger unreserve_highatomic_pageblock()
since it's only run from reclaim.
Given that such allocations will pass the watermarks in
__zone_watermark_unusable_free(), it makes sense to fallback to highatomic
reserves the same way that ALLOC_OOM can.
This fixes order-0 page allocation failures observed on Cloudflare's fleet
when handling network packets:
kswapd1: page allocation failure: order:0, mode:0x820(GFP_ATOMIC),
nodemask=(null),cpuset=/,mems_allowed=0-7
CPU: 10 PID: 696 Comm: kswapd1 Kdump: loaded Tainted: G O 6.6.43-CUSTOM #1
Hardware name: MACHINE
Call Trace:
<IRQ>
dump_stack_lvl+0x3c/0x50
warn_alloc+0x13a/0x1c0
__alloc_pages_slowpath.constprop.0+0xc9d/0xd10
__alloc_pages+0x327/0x340
__napi_alloc_skb+0x16d/0x1f0
bnxt_rx_page_skb+0x96/0x1b0 [bnxt_en]
bnxt_rx_pkt+0x201/0x15e0 [bnxt_en]
__bnxt_poll_work+0x156/0x2b0 [bnxt_en]
bnxt_poll+0xd9/0x1c0 [bnxt_en]
__napi_poll+0x2b/0x1b0
bpf_trampoline_6442524138+0x7d/0x1000
__napi_poll+0x5/0x1b0
net_rx_action+0x342/0x740
handle_softirqs+0xcf/0x2b0
irq_exit_rcu+0x6c/0x90
sysvec_apic_timer_interrupt+0x72/0x90
</IRQ>
[mfleming@cloudflare.com: update comment]
Link: https://lkml.kernel.org/r/20241015125158.3597702-1-matt@readmodwrite.com
Link: https://lkml.kernel.org/r/20241011120737.3300370-1-matt@readmodwrite.com
Link: https://lore.kernel.org/all/CAGis_TWzSu=P7QJmjD58WWiu3zjMTVKSzdOwWE8ORaGytzWJwQ@mail.gmail.com/
Fixes: 1d91df85f3 ("mm/page_alloc: handle a missing case for memalloc_nocma_{save/restore} APIs")
Signed-off-by: Matt Fleming <mfleming@cloudflare.com>
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
There is no reason to invoke these hooks early against an mm that is in an
incomplete state.
The change in commit d240629148 ("fork: use __mt_dup() to duplicate
maple tree in dup_mmap()") makes this more pertinent as we may be in a
state where entries in the maple tree are not yet consistent.
Their placement early in dup_mmap() only appears to have been meaningful
for early error checking, and since functionally it'd require a very small
allocation to fail (in practice 'too small to fail') that'd only occur in
the most dire circumstances, meaning the fork would fail or be OOM'd in
any case.
Since both khugepaged and KSM tracking are there to provide optimisations
to memory performance rather than critical functionality, it doesn't
really matter all that much if, under such dire memory pressure, we fail
to register an mm with these.
As a result, we follow the example of commit d2081b2bf8 ("mm:
khugepaged: make khugepaged_enter() void function") and make ksm_fork() a
void function also.
We only expose the mm to these functions once we are done with them and
only if no error occurred in the fork operation.
Link: https://lkml.kernel.org/r/e0cb8b840c9d1d5a6e84d4f8eff5f3f2022aa10c.1729014377.git.lorenzo.stoakes@oracle.com
Fixes: d240629148 ("fork: use __mt_dup() to duplicate maple tree in dup_mmap()")
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reported-by: Jann Horn <jannh@google.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Jann Horn <jannh@google.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Linus Torvalds <torvalds@linuxfoundation.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "fork: do not expose incomplete mm on fork".
During fork we may place the virtual memory address space into an
inconsistent state before the fork operation is complete.
In addition, we may encounter an error during the fork operation that
indicates that the virtual memory address space is invalidated.
As a result, we should not be exposing it in any way to external machinery
that might interact with the mm or VMAs, machinery that is not designed to
deal with incomplete state.
We specifically update the fork logic to defer khugepaged and ksm to the
end of the operation and only to be invoked if no error arose, and
disallow uffd from observing fork events should an error have occurred.
This patch (of 2):
Currently on fork we expose the virtual address space of a process to
userland unconditionally if uffd is registered in VMAs, regardless of
whether an error arose in the fork.
This is performed in dup_userfaultfd_complete() which is invoked
unconditionally, and performs two duties - invoking registered handlers
for the UFFD_EVENT_FORK event via dup_fctx(), and clearing down
userfaultfd_fork_ctx objects established in dup_userfaultfd().
This is problematic, because the virtual address space may not yet be
correctly initialised if an error arose.
The change in commit d240629148 ("fork: use __mt_dup() to duplicate
maple tree in dup_mmap()") makes this more pertinent as we may be in a
state where entries in the maple tree are not yet consistent.
We address this by, on fork error, ensuring that we roll back state that
we would otherwise expect to clean up through the event being handled by
userland and perform the memory freeing duty otherwise performed by
dup_userfaultfd_complete().
We do this by implementing a new function, dup_userfaultfd_fail(), which
performs the same loop, only decrementing reference counts.
Note that we perform mmgrab() on the parent and child mm's, however
userfaultfd_ctx_put() will mmdrop() this once the reference count drops to
zero, so we will avoid memory leaks correctly here.
Link: https://lkml.kernel.org/r/cover.1729014377.git.lorenzo.stoakes@oracle.com
Link: https://lkml.kernel.org/r/d3691d58bb58712b6fb3df2be441d175bd3cdf07.1729014377.git.lorenzo.stoakes@oracle.com
Fixes: d240629148 ("fork: use __mt_dup() to duplicate maple tree in dup_mmap()")
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reported-by: Jann Horn <jannh@google.com>
Reviewed-by: Jann Horn <jannh@google.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Linus Torvalds <torvalds@linuxfoundation.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
pmd_leaf()/pud_leaf() only implies a pmd_present()/pud_present() check on
some architectures. We really should check for
pmd_present()/pud_present() first.
This should explain the report we got on ppc64 (which has
CONFIG_PGTABLE_HAS_HUGE_LEAVES set in the config) that triggered:
VM_WARN_ON_ONCE(pmd_leaf(pmdp_get_lockless(pmdp)));
Likely we had a PMD migration entry for which pmd_leaf() did not trigger.
We raced with restoring the PMD migration entry, and suddenly saw a
pmd_leaf(). In this case, pte_offset_map_lock() saved us from more
trouble, because it rechecks the PMD value, but we would not have
processed the migration entry -- which is not too bad because the only
user of FW_MIGRATION is KSM for unsharing, and KSM only applies to small
folios.
Further, we shouldn't re-read the PMD/PUD value for our warning, the
primary purpose of the VM_WARN_ON_ONCE() is to find spurious use of
pmd_leaf()/pud_leaf() without CONFIG_PGTABLE_HAS_HUGE_LEAVES.
As a side note, we are currently not implementing FW_MIGRATION support for
PUD migration entries, which likely should exist due to hugetlb. Add a
TODO so this won't fall through the cracks if more FW_MIGRATION users get
added.
Was able to write a quick reproducer and verify that the issue no longer triggers with this fix.
https://gitlab.com/davidhildenbrand/scratchspace/-/blob/main/reproducers/move-pages-pmd-leaf.c
Without this fix after a couple of seconds in a VM with 2 NUMA nodes:
[ 54.333753] ------------[ cut here ]------------
[ 54.334901] WARNING: CPU: 20 PID: 1704 at mm/pagewalk.c:815 folio_walk_start+0x48f/0x6e0
[ 54.336455] Modules linked in: ...
[ 54.345009] CPU: 20 UID: 0 PID: 1704 Comm: move-pages-pmd- Not tainted 6.12.0-rc2+ #81
[ 54.346529] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 04/01/2014
[ 54.348191] RIP: 0010:folio_walk_start+0x48f/0x6e0
[ 54.349134] Code: b5 ad 48 8d 35 00 00 00 00 e8 6d 59 d7 ff e8 08 74 da ff e9 9c fe ff ff 4c 8b 7c 24 08 4c 89 ff e8 26 2b be 00 e9 8a fe ff ff <0f> 0b e9 ec fe ff ff f7 c2 ff 0f 00 00 0f 85 81 fe ff ff 48 8b 02
[ 54.352660] RSP: 0018:ffffb7e4c430bc78 EFLAGS: 00010282
[ 54.353679] RAX: 80000002a3e008e7 RBX: ffff9946039aa580 RCX: ffff994380000000
[ 54.355056] RDX: ffff994606aec000 RSI: 00007f004b000000 RDI: 0000000000000000
[ 54.356440] RBP: 00007f004b000000 R08: 0000000000000591 R09: 0000000000000001
[ 54.357820] R10: 0000000000000200 R11: 0000000000000001 R12: ffffb7e4c430bd10
[ 54.359198] R13: ffff994606aec2c0 R14: 0000000000000002 R15: ffff994604a89b00
[ 54.360564] FS: 00007f004ae006c0(0000) GS:ffff9947f7400000(0000) knlGS:0000000000000000
[ 54.362111] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 54.363242] CR2: 00007f004adffe58 CR3: 0000000281e12005 CR4: 0000000000770ef0
[ 54.364615] PKRU: 55555554
[ 54.365153] Call Trace:
[ 54.365646] <TASK>
[ 54.366073] ? __warn.cold+0xb7/0x14d
[ 54.366796] ? folio_walk_start+0x48f/0x6e0
[ 54.367628] ? report_bug+0xff/0x140
[ 54.368324] ? handle_bug+0x58/0x90
[ 54.369019] ? exc_invalid_op+0x17/0x70
[ 54.369771] ? asm_exc_invalid_op+0x1a/0x20
[ 54.370606] ? folio_walk_start+0x48f/0x6e0
[ 54.371415] ? folio_walk_start+0x9e/0x6e0
[ 54.372227] do_pages_move+0x1c5/0x680
[ 54.372972] kernel_move_pages+0x1a1/0x2b0
[ 54.373804] __x64_sys_move_pages+0x25/0x30
Link: https://lkml.kernel.org/r/20241015111236.1290921-1-david@redhat.com
Fixes: aa39ca6940 ("mm/pagewalk: introduce folio_walk_start() + folio_walk_end()")
Signed-off-by: David Hildenbrand <david@redhat.com>
Reported-by: syzbot+7d917f67c05066cec295@syzkaller.appspotmail.com
Closes: https://lkml.kernel.org/r/670d3248.050a0220.3e960.0064.GAE@google.com
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Jann Horn <jannh@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
allocated to a CoCo (SNP) guest which cannot use them and thus fail booting
- Fix the microcode loader on AMD to pay attention to the stepping of a patch
and to handle the case where a BIOS config option splits the machine into
logical NUMA nodes per L3 cache slice
- Disable LAM from being built by default due to security concerns of
a various kind
-----BEGIN PGP SIGNATURE-----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=P9TV
-----END PGP SIGNATURE-----
Merge tag 'x86_urgent_for_v6.12_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Prevent a certain range of pages which get marked as hypervisor-only,
to get allocated to a CoCo (SNP) guest which cannot use them and thus
fail booting
- Fix the microcode loader on AMD to pay attention to the stepping of a
patch and to handle the case where a BIOS config option splits the
machine into logical NUMA nodes per L3 cache slice
- Disable LAM from being built by default due to security concerns
* tag 'x86_urgent_for_v6.12_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev: Ensure that RMP table fixups are reserved
x86/microcode/AMD: Split load_microcode_amd()
x86/microcode/AMD: Pay attention to the stepping dynamically
x86/lam: Disable ADDRESS_MASKING in most cases
- Fix missing mutex unlock in error path of register_ftrace_graph()
A previous fix added a return on an error path and forgot to unlock the
mutex. Instead of dealing with error paths, use guard(mutex) as the mutex
is just released at the exit of the function anyway. Other functions
in this file should be updated with this, but that's a cleanup and not
a fix.
- Change cpuhp setup name to be consistent with other cpuhp states
The same fix that the above patch fixes added a cpuhp_setup_state() call
with the name of "fgraph_idle_init". I was informed that it should instead
be something like: "fgraph:online". Update that too.
-----BEGIN PGP SIGNATURE-----
iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCZxydTRQccm9zdGVkdEBn
b29kbWlzLm9yZwAKCRAp5XQQmuv6qsE/APoDcsqqaDJvQ0OsMqVaPdHoj2IUkU4M
yueb6U/Kyq1m4wEA259W1PZuQlM0Vo0yJM1w2YIAH18UpO09ZroLnbWoUAc=
=2sS+
-----END PGP SIGNATURE-----
Merge tag 'ftrace-v6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull ftrace fixes from Steven Rostedt:
- Fix missing mutex unlock in error path of register_ftrace_graph()
A previous fix added a return on an error path and forgot to unlock
the mutex. Instead of dealing with error paths, use guard(mutex) as
the mutex is just released at the exit of the function anyway. Other
functions in this file should be updated with this, but that's a
cleanup and not a fix.
- Change cpuhp setup name to be consistent with other cpuhp states
The same fix that the above patch fixes added a cpuhp_setup_state()
call with the name of "fgraph_idle_init". I was informed that it
should instead be something like: "fgraph:online". Update that too.
* tag 'ftrace-v6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
fgraph: Change the name of cpuhp state to "fgraph:online"
fgraph: Fix missing unlock in register_ftrace_graph()
Highlights:
- Asus thermal profile fix, fixing performance issues on Lunar Lake
- Intel PMC: 1 revert for a lockdep issue + 1 bugfix
- Dell WMI: Ignore some WMI events on suspend/resume to silence warnings
The following is an automated git shortlog grouped by driver:
asus-wmi:
- Fix thermal profile initialization
dell-wmi:
- Ignore suspend notifications
intel/pmc:
- Revert "Enable the ACPI PM Timer to be turned off when suspended"
platform/x86/intel/pmc:
- Fix pmc_core_iounmap to call iounmap for valid addresses
-----BEGIN PGP SIGNATURE-----
iQFIBAABCAAyFiEEuvA7XScYQRpenhd+kuxHeUQDJ9wFAmcc1zAUHGhkZWdvZWRl
QHJlZGhhdC5jb20ACgkQkuxHeUQDJ9yNDAgAgHmoIX1Z02pJuNGAnWfWPSU83EUT
YdJRIzMBs45dMY+Cuugfe+YbcZttr5C0LIDdYrU28rVaTbNrL6XQlmteC6cTGbMZ
kEscXsgnY++IMf8mzNKTrZj7Vm4d3oEWGPkaGoNU6j7fPzF2UU6nPMfjOaKi2h4z
DL/SIJNOHptdKf11/U1zhiMJmGFxuvszINGwbpXK4CSamc2K8Cmre/J7O8gyX7wI
ZlYlgf+M/Lz7ob9y+e62evg3mzGFyGNkL4SoEPdUrP0OsULdBq0Q9bcJwxklBco8
TxsXr+wvjRcN2krxhB+ZbW1BmQW80JR+7sxht7p5+Wq3EJO5xGIMq15Cbg==
=S/K7
-----END PGP SIGNATURE-----
Merge tag 'platform-drivers-x86-v6.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
- Asus thermal profile fix, fixing performance issues on Lunar Lake
- Intel PMC: one revert for a lockdep issue and one bugfix
- Dell WMI: Ignore some WMI events on suspend/resume to silence warnings
* tag 'platform-drivers-x86-v6.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: asus-wmi: Fix thermal profile initialization
platform/x86: dell-wmi: Ignore suspend notifications
platform/x86/intel/pmc: Fix pmc_core_iounmap to call iounmap for valid addresses
platform/x86:intel/pmc: Revert "Enable the ACPI PM Timer to be turned off when suspended"
This update includes a single commit to resolve a regression existing in
v6.11 or later.
The change in 1394 OHCI driver in v6.11 kernel could cause general
protection faults when rediscovering nodes in IEEE 1394 bus while holding
a spin lock. Consequently, watchdog checks can report a hard lockup.
Currently, this issue is observed primarily during the system resume phase
when using an extra node with three ports or more is used. However, it
could potentially occur in the other cases as well.
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQQE66IEYNDXNBPeGKSsLtaWM8LwEwUCZx3k/gAKCRCsLtaWM8Lw
E7mlAP9Zw94KE2AvNDwRQrY9hLPkEVSdLZYcfG3zo0wDvLukeAEAh06k+B4ZpkVr
KNd9Epb/dcouK6ucUqDlyY/R/64b2A0=
=L4mg
-----END PGP SIGNATURE-----
Merge tag 'firewire-fixes-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire fix from Takashi Sakamoto:
"A single commit to resolve a regression existing in v6.11 or later.
The change in 1394 OHCI driver in v6.11 kernel could cause general
protection faults when rediscovering nodes in IEEE 1394 bus while
holding a spin lock. Consequently, watchdog checks can report a hard
lockup.
Currently, this issue is observed primarily during the system resume
phase when using an extra node with three ports or more is used.
However, it could potentially occur in the other cases as well"
* tag 'firewire-fixes-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: core: fix invalid port index for parent device
-----BEGIN PGP SIGNATURE-----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=zznR
-----END PGP SIGNATURE-----
Merge tag 'block-6.12-20241026' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- Pull request for MD via Song fixing a few issues
- Fix a wrong check in blk_rq_map_user_bvec(), causing IO errors on
passthrough IO (Xinyu)
* tag 'block-6.12-20241026' of git://git.kernel.dk/linux:
block: fix sanity checks in blk_rq_map_user_bvec
md/raid10: fix null ptr dereference in raid10_size()
md: ensure child flush IO does not affect origin bio->bi_status
* fix recovery of allocator ops after a growfs
* Do not fail repairs on metadata files with no attr fork
Signed-off-by: Carlos Maiolino <cem@kernel.org>
-----BEGIN PGP SIGNATURE-----
iJUEABMJAB0WIQQMHYkcUKcy4GgPe2RGdaER5QtfpgUCZxjo7gAKCRBGdaER5Qtf
pr26AYCUc9+Vlg5iReesrghYHJgeCaMYZm2i4WdNdI+BO8d+5+AA1oUO55ib3xWd
fX8A0MEBf32eeMR0E+K0NeKsmHnbGHXyWRg/27IlNRniL4/yldssEFB8X3b7Gkw5
/geUVdz99A==
=+NGs
-----END PGP SIGNATURE-----
Merge tag 'xfs-6.12-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Carlos Maiolino:
- Fix recovery of allocator ops after a growfs
- Do not fail repairs on metadata files with no attr fork
* tag 'xfs-6.12-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: update the pag for the last AG at recovery time
xfs: don't use __GFP_RETRY_MAYFAIL in xfs_initialize_perag
xfs: error out when a superblock buffer update reduces the agcount
xfs: update the file system geometry after recoverying superblock buffers
xfs: merge the perag freeing helpers
xfs: pass the exact range to initialize to xfs_initialize_perag
xfs: don't fail repairs on metadata files with no attr fork
In a commit 24b7f8e5cd ("firewire: core: use helper functions for self
ID sequence"), the enumeration over self ID sequence was refactored with
some helper functions with KUnit tests. These helper functions are
guaranteed to work expectedly by the KUnit tests, however their application
includes a mistake to assign invalid value to the index of port connected
to parent device.
This bug affects the case that any extra node devices which has three or
more ports are connected to 1394 OHCI controller. In the case, the path
to update the tree cache could hits WARN_ON(), and gets general protection
fault due to the access to invalid address computed by the invalid value.
This commit fixes the bug to assign correct port index.
Cc: stable@vger.kernel.org
Reported-by: Edmund Raile <edmund.raile@proton.me>
Closes: https://lore.kernel.org/lkml/8a9902a4ece9329af1e1e42f5fea76861f0bf0e8.camel@proton.me/
Fixes: 24b7f8e5cd ("firewire: core: use helper functions for self ID sequence")
Link: https://lore.kernel.org/r/20241025034137.99317-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
When support for vivobook fan profiles was added, the initial
call to throttle_thermal_policy_set_default() was removed, which
however is necessary for full initialization.
Fix this by calling throttle_thermal_policy_set_default() again
when setting up the platform profile.
Fixes: bcbfcebda2 ("platform/x86: asus-wmi: add support for vivobook fan profiles")
Reported-by: Michael Larabel <Michael@phoronix.com>
Closes: https://www.phoronix.com/review/lunar-lake-xe2/5
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20241025191514.15032-2-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
-----BEGIN PGP SIGNATURE-----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=O6o1
-----END PGP SIGNATURE-----
Merge tag '9p-for-6.12-rc5' of https://github.com/martinetd/linux
Pull more 9p reverts from Dominique Martinet:
"Revert patches causing inode collision problems.
The code simplification introduced significant regressions on servers
that do not remap inode numbers when exporting multiple underlying
filesystems with colliding inodes. See the top-most revert (commit
be2ca38253) for details.
This problem had been ignored for too long and the reverts will also
head to stable (6.9+).
I'm confident this set of patches gets us back to previous behaviour
(another related patch had already been reverted back in April and
we're almost back to square 1, and the rest didn't touch inode
lifecycle)"
* tag '9p-for-6.12-rc5' of https://github.com/martinetd/linux:
Revert "fs/9p: simplify iget to remove unnecessary paths"
Revert "fs/9p: fix uaf in in v9fs_stat2inode_dotl"
Revert "fs/9p: remove redundant pointer v9ses"
Revert " fs/9p: mitigate inode collisions"
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCZxu02AAKCRDh3BK/laaZ
PLDHAPwMzz4c+wbqz8Qo2IEo3lxvgPjgzMNXQetCgZFKvxKRlwD+PaIeRixGwwmB
ON3IsScZjROphzb+ofroUpj7lLEM7Ag=
=9rYN
-----END PGP SIGNATURE-----
Merge tag 'fuse-fixes-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
- Fix cached size after passthrough writes
This fix needed a trivial change in the backing-file API, which
resulted in some non-fuse files being touched.
- Revert a commit meant as a cleanup but which triggered a WARNING
- Remove a stray debug line left-over
* tag 'fuse-fixes-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: remove stray debug line
Revert "fuse: move initialization of fuse_file to fuse_writepages() instead of in callback"
fuse: update inode size after extending passthrough write
fs: pass offset and result to backing_file end_write() callback
- Fix a couple of use-after-free bugs
-----BEGIN PGP SIGNATURE-----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=1YOr
-----END PGP SIGNATURE-----
Merge tag 'nfsd-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
- Fix a couple of use-after-free bugs
* tag 'nfsd-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
nfsd: cancel nfsd_shrinker_work using sync mode in nfs4_state_shutdown_net
nfsd: fix race between laundromat and free_stateid
- Make acpi_parse_prmt() look for EFI_MEMORY_RUNTIME memory regions
only to comply with the UEFI specification and make PRM use
efi_guid_t instead of guid_t to avoid a compiler warning triggered
by that change (Koba Ko, Dan Carpenter).
- Add an ACPI IRQ override quirk for LG 16T90SP (Christian Heusel).
- Add a lid switch detection quirk for Samsung Galaxy Book2 (Shubham
Panwar).
-----BEGIN PGP SIGNATURE-----
iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmcbvF8SHHJqd0Byand5
c29ja2kubmV0AAoJEILEb/54YlRxVOIP/0zoNdhHqjQtF26Wj9n1cYjQ5q1Uh5St
M+PxW0sSrkhbDEYExXp9mjIQW+hSErG5CorH+yQGhUs82eaTLwlASIYnm78vRzH7
UzEFat+ZY4Yqq9BQvNX0rch2kjEqu5Ck7OntnCw+XGYxV67CbF5LBJSBr5SwlHUZ
9m35XXg+0DNpc8MsD7MGMB8BIe0t3PzjZiygpqzj7Rl0wSBBUvSJvoNwsMgTpQMr
o9mMV1jcWmxxeCTq6WXETU9WQAYWiU8GaPN7h+T+Fmt9rk7xdkMahEP95J4qIWnd
B2kbxGfDqp4Q5bKIF2L0JmNqA2h2WKdVpIiMm/4RubYbKRQn5AtVV61/3sSZLYCo
/HsxzWgazEY6fflcQQa7NXwujaB9BlKZkRv9LkecEa/EE6xv4kovTawLTugVUgZJ
z2R4JqOKEYAaFfS/h3Y5slTC72EW99JOMpJgJvSNZtxBdrHH1ikNqsX0R0nFK6xH
bTRqv2bATZ6YBKx6fnjNhBoaZ0BTHvVEOqhdQyqJhqhZ4eiS7aEvlJGB6Kcyih+n
2QG3hF4SnXgvPNQ3PcWC1daNVOO4HC4vofabfi5jei1926B6xEBZeCCNMw2hY0E3
/VZfd3eGADA/yMUtR3eoWflHPw8AkUhy0J0CYVdrDcQpVch3sDi8hd4yOVd1SUMf
SCrn5rPZ4MK/
=8OkL
-----END PGP SIGNATURE-----
Merge tag 'acpi-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix an ACPI PRM (Platform Runtime Mechanism) issue and add two
new DMI quirks, one for an ACPI IRQ override and one for lid switch
detection:
- Make acpi_parse_prmt() look for EFI_MEMORY_RUNTIME memory regions
only to comply with the UEFI specification and make PRM use
efi_guid_t instead of guid_t to avoid a compiler warning triggered
by that change (Koba Ko, Dan Carpenter)
- Add an ACPI IRQ override quirk for LG 16T90SP (Christian Heusel)
- Add a lid switch detection quirk for Samsung Galaxy Book2 (Shubham
Panwar)"
* tag 'acpi-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PRM: Clean up guid type in struct prm_handler_info
ACPI: button: Add DMI quirk for Samsung Galaxy Book2 to fix initial lid detection issue
ACPI: resource: Add LG 16T90SP to irq1_level_low_skip_override[]
ACPI: PRM: Find EFI_MEMORY_RUNTIME block for PRM handler and context
Update cpufreq documentation to match the code after recent
changes (Christian Loehle), fix a units conversion issue in the
CPPC cpufreq driver (liwei), and fix an error check in the
dtpm_devfreq power capping driver (Yuan Can).
-----BEGIN PGP SIGNATURE-----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=6+Ra
-----END PGP SIGNATURE-----
Merge tag 'pm-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Update cpufreq documentation to match the code after recent changes
(Christian Loehle), fix a units conversion issue in the CPPC cpufreq
driver (liwei), and fix an error check in the dtpm_devfreq power
capping driver (Yuan Can)"
* tag 'pm-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: CPPC: fix perf_to_khz/khz_to_perf conversion exception
powercap: dtpm_devfreq: Fix error check against dev_pm_qos_add_request()
cpufreq: docs: Reflect latency changes in docs
-----BEGIN PGP SIGNATURE-----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=L6G0
-----END PGP SIGNATURE-----
Merge tag 'pci-v6.12-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fixes from Bjorn Helgaas:
- Hold the rescan lock while adding devices to avoid race with
concurrent pwrctl rescan that can lead to a crash (Bartosz
Golaszewski)
- Avoid binding pwrctl driver to QCom WCN wifi if the DT lacks the
necessary PMU regulator descriptions (Bartosz Golaszewski)
* tag 'pci-v6.12-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI/pwrctl: Abandon QCom WCN probe on pre-pwrseq device-trees
PCI: Hold rescan lock while adding devices during host probe
- update MAINTAINERS with a keyword pattern for legacy GPIO API
-----BEGIN PGP SIGNATURE-----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=AiNK
-----END PGP SIGNATURE-----
Merge tag 'gpio-fixes-for-v6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fix from Bartosz Golaszewski:
"Update MAINTAINERS with a keyword pattern for legacy GPIO API
The goal is to alert us to anyone trying to use the deprecated, legacy
API (this happens almost every release)"
* tag 'gpio-fixes-for-v6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
MAINTAINERS: add a keyword entry for the GPIO subsystem
- Fix the handling of ATA commands that timeout (command that did not
receive a completion interrupt within the configured timeout time).
Commands that timeout, while also having either the FAILFAST flag
set, or the command being a passthrough command, should never be
retried. Restore this behavior (as it was before v6.12-rc1).
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRN+ES/c4tHlMch3DzJZDGjmcZNcgUCZxtiEgAKCRDJZDGjmcZN
ctcdAQCWUhTs6m7MZmIP77c5XbPd3czeY8ZuHSkSu0aBnCDZvAD+O6mvuG6w2fyW
tTQihAubX16fbgamCA5+sBWPNnWtcw0=
=jiWe
-----END PGP SIGNATURE-----
Merge tag 'ata-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fix from Niklas Cassel:
- Fix the handling of ATA commands that timeout (command that did not
receive a completion interrupt within the configured timeout time).
Commands that timeout, while also having either the FAILFAST flag
set, or the command being a passthrough command, should never be
retried. Restore this behavior (as it was before v6.12-rc1).
* tag 'ata-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata: Set DID_TIME_OUT for commands that actually timed out
The majority of changes here are about ASoC.
There are two core changes in ASoC (the bump of minimal topology
ABI version and the fix for references of components in DAPM code),
and others are mostly various device-specific fixes for SoundWire,
AMD, Intel, SOF, Qualcomm and FSL, in addition to a few usual
HD-audio quirks and fixes.
-----BEGIN PGP SIGNATURE-----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=hhTD
-----END PGP SIGNATURE-----
Merge tag 'sound-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The majority of changes here are about ASoC.
There are two core changes in ASoC (the bump of minimal topology ABI
version and the fix for references of components in DAPM code), and
others are mostly various device-specific fixes for SoundWire, AMD,
Intel, SOF, Qualcomm and FSL, in addition to a few usual HD-audio
quirks and fixes"
* tag 'sound-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (33 commits)
ALSA: hda/realtek: Update default depop procedure
ASoC: qcom: sc7280: Fix missing Soundwire runtime stream alloc
ASoC: fsl_micfil: Add sample rate constraint
ASoC: rt722-sdca: increase clk_stop_timeout to fix clock stop issue
ALSA: hda/tas2781: select CRC32 instead of CRC32_SARWATE
ALSA: hda/realtek: Add subwoofer quirk for Acer Predator G9-593
ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()
ASoC: fsl_micfil: Add a flag to distinguish with different volume control types
ASoC: codecs: lpass-rx-macro: fix RXn(rx,n) macro for DSM_CTL and SEC7 regs
ASoC: Change my e-mail to gmail
ASoC: Intel: soc-acpi: lnl: Add match entry for TM2 laptops
ASoC: amd: yc: Fix non-functional mic on ASUS E1404FA
ASoC: SOF: Intel: hda: Always clean up link DMA during stop
soundwire: intel_ace2x: Send PDI stream number during prepare
ASoC: SOF: Intel: hda: Handle prepare without close for non-HDA DAI's
ASoC: SOF: ipc4-topology: Do not set ALH node_id for aggregated DAIs
MAINTAINERS: Update maintainer list for MICROCHIP ASOC, SSC and MCP16502 drivers
ASoC: qcom: Select missing common Soundwire module code on SDM845
ASoC: fsl_esai: change dev_warn to dev_dbg in irq handler
ASoC: rsnd: Fix probe failure on HiHope boards due to endpoint parsing
...
amdgpu:
- ACPI method handling fixes
- SMU 14.x fixes
- Display idle optimization fix
- DP link layer compliance fix
- SDMA 7.x fix
- PSR-SU fix
- SWSMU fix
i915:
- Fix DRM_I915_GVT_KVMGT dependencies in Kconfig
xe:
- Increase invalidation timeout to avoid errors in some hosts
- Flush worker on timeout
- Better handling for force wake failure
- Improve argument check on user fence creation
- Don't restart parallel queues multiple times on GT reset
bridge:
- aux: Fix assignment of OF node
- tc358767: Add missing of_node_put() in error path
-----BEGIN PGP SIGNATURE-----
iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmcbQzgACgkQDHTzWXnE
hr7IfQ/+OiFjGAZp6cESUUc+NQAbiFtLUFw2Z6oholsu6gYhq20Zelp80iue2CvM
leIl22tvdZbILigfKPCC4Om5lm4ffOesA4OVv5FDugrZ0VSN9eqnN6HYfKkRTwxZ
P9sAh59eMCniHsejja1SBY7HuqUIvT+ONE/5jyWb+BObRlZLCg9o9zTaf0KGAtzk
OSFQOR9APW08jdtDPvzEVAevC8aPpFR4LMCuuE7U+vINVW7mkm4aliixFm+rnr7y
WhHhzy2TCZXUmXiCAIIPITGp0LEE9vWyO3oxtSr570a0/80uK3cpUTGydbFWqr6x
mN/5du21JZrkw/RbImNyerKcatxQef+cxYA1cLl64mfRYf+8BcPd/ORVc2h7YJrR
YrazB6+QwwUwLhMvls24z180MEZtk7uZ2v6eNfxLseogkJhqRJdLUxAhf9+BE2AV
g1VBQjl3dO3XX2nYU67LCn/6/bBtnGoOaoUidr5O1gF1bWfIezCDUes8p0oXjk1X
RhIUSUgW5Cy/G8Nodx/XQgVLC/pRfLqwSakb0XquhqVS63pZbeDdx69UNtbON0aN
cb/2S2bgFnTN3HYTCrOG243B1BNkusauGEi+ACJfL2GxjTF848NA+K8G8OkpfuPl
nAZvi2hMtDpuJEcDiVk0AgutPp2+e+lyeQCbCpERvPbt0/7w/O8=
=dyE6
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2024-10-25' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Weekly drm fixes, mostly amdgpu and xe, with minor bridge and an i915
Kconfig fix. Nothing too scary and it seems to be pretty quiet.
amdgpu:
- ACPI method handling fixes
- SMU 14.x fixes
- Display idle optimization fix
- DP link layer compliance fix
- SDMA 7.x fix
- PSR-SU fix
- SWSMU fix
i915:
- Fix DRM_I915_GVT_KVMGT dependencies in Kconfig
xe:
- Increase invalidation timeout to avoid errors in some hosts
- Flush worker on timeout
- Better handling for force wake failure
- Improve argument check on user fence creation
- Don't restart parallel queues multiple times on GT reset
bridge:
- aux: Fix assignment of OF node
- tc358767: Add missing of_node_put() in error path"
* tag 'drm-fixes-2024-10-25' of https://gitlab.freedesktop.org/drm/kernel:
drm/xe: Don't restart parallel queues multiple times on GT reset
drm/xe/ufence: Prefetch ufence addr to catch bogus address
drm/xe: Handle unreliable MMIO reads during forcewake
drm/xe/guc/ct: Flush g2h worker in case of g2h response timeout
drm/xe: Enlarge the invalidation timeout from 150 to 500
drm/amdgpu: handle default profile on on devices without fullscreen 3D
drm/amd/display: Disable PSR-SU on Parade 08-01 TCON too
drm/amdgpu: fix random data corruption for sdma 7
drm/amd/display: temp w/a for DP Link Layer compliance
drm/amd/display: temp w/a for dGPU to enter idle optimizations
drm/amd/pm: update deep sleep status on smu v14.0.2/3
drm/amd/pm: update overdrive function on smu v14.0.2/3
drm/amd/pm: update the driver-fw interface file for smu v14.0.2/3
drm/amd: Guard against bad data for ATIF ACPI method
drm/bridge: tc358767: fix missing of_node_put() in for_each_endpoint_of_node()
drm/bridge: Fix assignment of the of_node of the parent to aux bridge
i915: fix DRM_I915_GVT_KVMGT dependencies
The x86 user pointer validation changes made me look at compiler output
a lot, and the wrong indentation for the ".popsection" in the generated
assembler triggered me.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It turns out that AMD has a "Meltdown Lite(tm)" issue with non-canonical
accesses in kernel space. And so using just the high bit to decide
whether an access is in user space or kernel space ends up with the good
old "leak speculative data" if you have the right gadget using the
result:
CVE-2020-12965 “Transient Execution of Non-Canonical Accesses“
Now, the kernel surrounds the access with a STAC/CLAC pair, and those
instructions end up serializing execution on older Zen architectures,
which closes the speculation window.
But that was true only up until Zen 5, which renames the AC bit [1].
That improves performance of STAC/CLAC a lot, but also means that the
speculation window is now open.
Note that this affects not just the new address masking, but also the
regular valid_user_address() check used by access_ok(), and the asm
version of the sign bit check in the get_user() helpers.
It does not affect put_user() or clear_user() variants, since there's no
speculative result to be used in a gadget for those operations.
Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
Link: https://lore.kernel.org/all/80d94591-1297-4afb-b510-c665efd37f10@citrix.com/
Link: https://lore.kernel.org/all/20241023094448.GAZxjFkEOOF_DM83TQ@fat_crate.local/ [1]
Link: https://www.amd.com/en/resources/product-security/bulletin/amd-sb-1010.html
Link: https://arxiv.org/pdf/2108.10771
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Tested-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com> # LAM case
Fixes: 2865baf540 ("x86: support user address masking instead of non-speculative conditional")
Fixes: 6014bc2756 ("x86-64: make access_ok() independent of LAM")
Fixes: b19b74bc99 ("x86/mm: Rework address range check in get_user() and put_user()")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge a dtpm_devfreq power capping driver fix for 6.12-rc5:
- Fix a dev_pm_qos_add_request() return value check in
__dtpm_devfreq_setup() to prevent it from failing if
a positive number is returned (Yuan Can).
* pm-powercap:
powercap: dtpm_devfreq: Fix error check against dev_pm_qos_add_request()
Merge new DMI quirks for 6.12-rc5:
- Add an ACPI IRQ override quirk for LG 16T90SP (Christian Heusel).
- Add a lid switch detection quirk for Samsung Galaxy Book2 (Shubham
Panwar).
* acpi-resource:
ACPI: resource: Add LG 16T90SP to irq1_level_low_skip_override[]
* acpi-button:
ACPI: button: Add DMI quirk for Samsung Galaxy Book2 to fix initial lid detection issue
- Increase invalidation timeout to avoid errors in some hosts (Shuicheng)
- Flush worker on timeout (Badal)
- Better handling for force wake failure (Shuicheng)
- Improve argument check on user fence creation (Nirmoy)
- Don't restart parallel queues multiple times on GT reset (Nirmoy)
-----BEGIN PGP SIGNATURE-----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=+1gt
-----END PGP SIGNATURE-----
Merge tag 'drm-xe-fixes-2024-10-24-1' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
- Increase invalidation timeout to avoid errors in some hosts (Shuicheng)
- Flush worker on timeout (Badal)
- Better handling for force wake failure (Shuicheng)
- Improve argument check on user fence creation (Nirmoy)
- Don't restart parallel queues multiple times on GT reset (Nirmoy)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/trlkoiewtc4x2cyhsxmj3atayyq4zwto4iryea5pvya2ymc3yp@fdx5nhwmiyem
The cpuhp state name given to cpuhp_setup_state() is "fgraph_idle_init"
which doesn't really conform to the names that are used for cpu hotplug
setups. Instead rename it to "fgraph:online" to be in line with other
states.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/20241024222944.473d88c5@rorschach.local.home
Suggested-by: Masami Hiramatsu <mhiramat@kernel.org>
Fixes: 2c02f7375e ("fgraph: Use CPU hotplug mechanism to initialize idle shadow stacks")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Use guard(mutex)() to acquire and automatically release ftrace_lock,
fixing the issue of not unlocking when calling cpuhp_setup_state()
fails.
Fixes smatch warning:
kernel/trace/fgraph.c:1317 register_ftrace_graph() warn: inconsistent returns '&ftrace_lock'.
Link: https://lore.kernel.org/20241024155917.1019580-1-lihuafei1@huawei.com
Fixes: 2c02f7375e ("fgraph: Use CPU hotplug mechanism to initialize idle shadow stacks")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202410220121.wxg0olfd-lkp@intel.com/
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Li Huafei <lihuafei1@huawei.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
- Fix an out-of-bounds read in bpf_link_show_fdinfo for BPF
sockmap link file descriptors (Hou Tao)
- Fix BPF arm64 JIT's address emission with tag-based KASAN
enabled reserving not enough size (Peter Collingbourne)
- Fix BPF verifier do_misc_fixups patching for inlining of the
bpf_get_branch_snapshot BPF helper (Andrii Nakryiko)
- Fix a BPF verifier bug and reject BPF program write attempts
into read-only marked BPF maps (Daniel Borkmann)
- Fix perf_event_detach_bpf_prog error handling by removing an
invalid check which would skip BPF program release (Jiri Olsa)
- Fix memory leak when parsing mount options for the BPF
filesystem (Hou Tao)
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZxrAzxUcZGFuaWVsQGlv
Z2VhcmJveC5uZXQACgkQ2yufC7HISIPcHwD8DnBSPlHX9OezMWCm8mjVx2Fd26W9
/IaiW2tyOPtoSGIA/3hfgfLrxkb3Raoh0miQB2+FRrz9e+y7i8c4Q91mcUgJ
=Hvht
-----END PGP SIGNATURE-----
Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Pull bpf fixes from Daniel Borkmann:
- Fix an out-of-bounds read in bpf_link_show_fdinfo for BPF sockmap
link file descriptors (Hou Tao)
- Fix BPF arm64 JIT's address emission with tag-based KASAN enabled
reserving not enough size (Peter Collingbourne)
- Fix BPF verifier do_misc_fixups patching for inlining of the
bpf_get_branch_snapshot BPF helper (Andrii Nakryiko)
- Fix a BPF verifier bug and reject BPF program write attempts into
read-only marked BPF maps (Daniel Borkmann)
- Fix perf_event_detach_bpf_prog error handling by removing an invalid
check which would skip BPF program release (Jiri Olsa)
- Fix memory leak when parsing mount options for the BPF filesystem
(Hou Tao)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Check validity of link->type in bpf_link_show_fdinfo()
bpf: Add the missing BPF_LINK_TYPE invocation for sockmap
bpf: fix do_misc_fixups() for bpf_get_branch_snapshot()
bpf,perf: Fix perf_event_detach_bpf_prog error handling
selftests/bpf: Add test for passing in uninit mtu_len
selftests/bpf: Add test for writes to .rodata
bpf: Remove MEM_UNINIT from skb/xdp MTU helpers
bpf: Fix overloading of MEM_UNINIT's meaning
bpf: Add MEM_WRITE attribute
bpf: Preserve param->string when parsing mount options
bpf, arm64: Fix address emission with tag-based KASAN enabled
Current release - regressions:
- posix-clock: Fix unbalanced locking in pc_clock_settime()
- netfilter: fix typo causing some targets not to load on IPv6
Current release - new code bugs:
- xfrm: policy: remove last remnants of pernet inexact list
Previous releases - regressions:
- core: fix races in netdev_tx_sent_queue()/dev_watchdog()
- bluetooth: fix UAF on sco_sock_timeout
- eth: hv_netvsc: fix VF namespace also in synthetic NIC NETDEV_REGISTER event
- eth: usbnet: fix name regression
- eth: be2net: fix potential memory leak in be_xmit()
- eth: plip: fix transmit path breakage
Previous releases - always broken:
- sched: deny mismatched skip_sw/skip_hw flags for actions created by classifiers
- netfilter: bpf: must hold reference on net namespace
- eth: virtio_net: fix integer overflow in stats
- eth: bnxt_en: replace ptp_lock with irqsave variant
- eth: octeon_ep: add SKB allocation failures handling in __octep_oq_process_rx()
Misc:
- MAINTAINERS: add Simon as an official reviewer
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-----BEGIN PGP SIGNATURE-----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=dR3Q
-----END PGP SIGNATURE-----
Merge tag 'net-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfiler, xfrm and bluetooth.
Oddly this includes a fix for a posix clock regression; in our
previous PR we included a change there as a pre-requisite for
networking one. That fix proved to be buggy and requires the follow-up
included here. Thomas suggested we should send it, given we sent the
buggy patch.
Current release - regressions:
- posix-clock: Fix unbalanced locking in pc_clock_settime()
- netfilter: fix typo causing some targets not to load on IPv6
Current release - new code bugs:
- xfrm: policy: remove last remnants of pernet inexact list
Previous releases - regressions:
- core: fix races in netdev_tx_sent_queue()/dev_watchdog()
- bluetooth: fix UAF on sco_sock_timeout
- eth: hv_netvsc: fix VF namespace also in synthetic NIC
NETDEV_REGISTER event
- eth: usbnet: fix name regression
- eth: be2net: fix potential memory leak in be_xmit()
- eth: plip: fix transmit path breakage
Previous releases - always broken:
- sched: deny mismatched skip_sw/skip_hw flags for actions created by
classifiers
- netfilter: bpf: must hold reference on net namespace
- eth: virtio_net: fix integer overflow in stats
- eth: bnxt_en: replace ptp_lock with irqsave variant
- eth: octeon_ep: add SKB allocation failures handling in
__octep_oq_process_rx()
Misc:
- MAINTAINERS: add Simon as an official reviewer"
* tag 'net-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (40 commits)
net: dsa: mv88e6xxx: support 4000ps cycle counter period
net: dsa: mv88e6xxx: read cycle counter period from hardware
net: dsa: mv88e6xxx: group cycle counter coefficients
net: usb: qmi_wwan: add Fibocom FG132 0x0112 composition
hv_netvsc: Fix VF namespace also in synthetic NIC NETDEV_REGISTER event
net: dsa: microchip: disable EEE for KSZ879x/KSZ877x/KSZ876x
Bluetooth: ISO: Fix UAF on iso_sock_timeout
Bluetooth: SCO: Fix UAF on sco_sock_timeout
Bluetooth: hci_core: Disable works on hci_unregister_dev
posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()
r8169: avoid unsolicited interrupts
net: sched: use RCU read-side critical section in taprio_dump()
net: sched: fix use-after-free in taprio_change()
net/sched: act_api: deny mismatched skip_sw/skip_hw flags for actions created by classifiers
net: usb: usbnet: fix name regression
mlxsw: spectrum_router: fix xa_store() error checking
virtio_net: fix integer overflow in stats
net: fix races in netdev_tx_sent_queue()/dev_watchdog()
net: wwan: fix global oob in wwan_rtnl_policy
netfilter: xtables: fix typo causing some targets not to load on IPv6
...
This reverts commit 724a08450f.
This code simplification introduced significant regressions on servers
that do not remap inode numbers when exporting multiple underlying
filesystems with colliding inodes, as can be illustrated with simple
tmpfs exports in qemu with remapping disabled:
```
# host side
cd /tmp/linux-test
mkdir m1 m2
mount -t tmpfs tmpfs m1
mount -t tmpfs tmpfs m2
mkdir m1/dir m2/dir
echo foo > m1/dir/foo
echo bar > m2/dir/bar
# guest side
# started with -virtfs local,path=/tmp/linux-test,mount_tag=tmp,security_model=mapped-file
mount -t 9p -o trans=virtio,debug=1 tmp /mnt/t
ls /mnt/t/m1/dir
# foo
ls /mnt/t/m2/dir
# bar (works ok if directry isn't open)
# cd to keep first dir's inode alive
cd /mnt/t/m1/dir
ls /mnt/t/m2/dir
# foo (should be bar)
```
Other examples can be crafted with regular files with fscache enabled,
in which case I/Os just happen to the wrong file leading to
corruptions, or guest failing to boot with:
| VFS: Lookup of 'com.android.runtime' in 9p 9p would have caused loop
In theory, we'd want the servers to be smart enough and ensure they
never send us two different files with the same 'qid.path', but while
qemu has an option to remap that is recommended (and qemu prints a
warning if this case happens), there are many other servers which do
not (kvmtool, nfs-ganesha, probably diod...), we should at least ensure
we don't cause regressions on this:
- assume servers can't be trusted and operations that should get a 'new'
inode properly do so. commit d05dcfdf5e (" fs/9p: mitigate inode
collisions") attempted to do this, but v9fs_fid_iget_dotl() was not
called so some higher level of caching got in the way; this needs to be
fixed properly before we can re-apply the patches.
- if we ever want to really simplify this code, we will need to add some
negotiation with the server at mount time where the server could claim
they handle this properly, at which point we could optimize this out.
(but that might not be needed at all if we properly handle the 'new'
check?)
Fixes: 724a08450f ("fs/9p: simplify iget to remove unnecessary paths")
Reported-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/all/20240408141436.GA17022@redhat.com/
Link: https://lkml.kernel.org/r/20240923100508.GA32066@willie-the-truck
Cc: stable@vger.kernel.org # v6.9+
Message-ID: <20241024-revert_iget-v1-4-4cac63d25f72@codewreck.org>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
This reverts commit 11763a8598.
This is a requirement to revert commit 724a08450f ("fs/9p: simplify
iget to remove unnecessary paths"), see that revert for details.
Fixes: 724a08450f ("fs/9p: simplify iget to remove unnecessary paths")
Reported-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20240923100508.GA32066@willie-the-truck
Cc: stable@vger.kernel.org # v6.9+
Message-ID: <20241024-revert_iget-v1-3-4cac63d25f72@codewreck.org>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
This reverts commit 10211b4a23.
This is a requirement to revert commit 724a08450f ("fs/9p: simplify
iget to remove unnecessary paths"), see that revert for details.
Fixes: 724a08450f ("fs/9p: simplify iget to remove unnecessary paths")
Reported-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20240923100508.GA32066@willie-the-truck
Cc: stable@vger.kernel.org # v6.9+
Message-ID: <20241024-revert_iget-v1-2-4cac63d25f72@codewreck.org>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
This reverts commit d05dcfdf5e.
This is a requirement to revert commit 724a08450f ("fs/9p: simplify
iget to remove unnecessary paths"), see that revert for details.
Fixes: 724a08450f ("fs/9p: simplify iget to remove unnecessary paths")
Reported-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20240923100508.GA32066@willie-the-truck
Cc: stable@vger.kernel.org # v6.9+
Message-ID: <20241024-revert_iget-v1-1-4cac63d25f72@codewreck.org>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
-----BEGIN PGP SIGNATURE-----
iQJKBAABCAA0FiEEzOlt8mkP+tbeiYy5AoYrw/LiJnoFAmcZBXwWHGNoZW5odWFj
YWlAa2VybmVsLm9yZwAKCRAChivD8uImeqN/EACSkIXn6754wSH4cDRWlZQcxvRa
05gaqDzAXU8IZ+O0/+I3JQHezPxBNoMsr+J59KIwlYxCGQQ6xyjaLK3+fC3yf3jW
ITzBLGLufzv88LbL9LFW2ag5bSl9+Wi/KMxBd9oKQm0e0z31vZ0Ofj8WjHCMvNdH
SA9gGFFZ7e6B0RsvvoTCR6n9bjbuMKQ28XU6wJnboNIARvbzGVdD2BtBfPPLH66i
VeWjM3o6DUyikwyoCfhco8ovzNBrt4Z4y+W6sHZb66zKccYGKPdeFxrDFuks/oTw
uVwiaEJhwEv76E5z8Jp7c7uWWsflObXZ5hWkHBMGn2etlHO6csTfOV1GLrciHM+p
uI62eUEOSLt7r5doFqkv3f9jsSKHiXM9Yq7osqG1gg0pSFnSVrtq8B/coTrwx6K7
EWkX8vpuWVmYVe9/LM17wV+AL7rQfTW51Ypmqz37Sl+GyuD2HOjqYG8g0KDNBFa0
lnKVvMYaewnQyHgpQino6Grue3H3cb8+jgAxNYJNJ5+vgbQYFhw2sYWty9DJOREC
klOlGz/OvJWLOTCrQr/RqDVyR1SDEseITglgc2Ng/IkGuiQEx83oOQm7B3aajdPi
NhNFtKz/YyiJasRpock6UeYCpM2rOfXq46t52HLTHGBlGd3ZlF4FfL/2z1FuJZOX
B5DoUhOz3QZyXXguMg==
=83tm
-----END PGP SIGNATURE-----
Merge tag 'loongarch-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"Get correct cores_per_package for SMT systems, enable IRQ if do_ale()
triggered in irq-enabled context, and fix some bugs about vDSO, memory
managenent, hrtimer in KVM, etc"
* tag 'loongarch-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: KVM: Mark hrtimer to expire in hard interrupt context
LoongArch: Make KASAN usable for variable cpu_vabits
LoongArch: Set initial pte entry with PAGE_GLOBAL for kernel space
LoongArch: Don't crash in stack_top() for tasks without vDSO
LoongArch: Set correct size for vDSO code mapping
LoongArch: Enable IRQ if do_ale() triggered in irq-enabled context
LoongArch: Get correct cores_per_package for SMT systems
LoongArch: Use "Exception return address" to comment ERA
- objpool: Fix choosing allocation for percpu slots
Fixes to allocate objpool's percpu slots correctly according to the
GFP flag. It checks whether "any bit" in GFP_ATOMIC is set to choose
the vmalloc source, but it should check "all bits" in GFP_ATOMIC flag
is set, because GFP_ATOMIC is a combined flag.
- tracing/probes: Fix MAX_TRACE_ARGS limit handling
If more than MAX_TRACE_ARGS are passed for creating a probe event, the
entries over MAX_TRACE_ARG in trace_arg array are not initialized.
Thus if the kernel accesses those entries, it crashes. This rejects
creating event if the number of arguments is over MAX_TRACE_ARGS.
- tracing: Consider the NULL character when validating the event length
A strlen() is used when parsing the event name, and the original code
does not consider the terminal null byte. Thus it can pass the name
1 byte longer than the buffer. This fixes to check it correctly.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmcZBJ0ACgkQ2/sHvwUr
Pxu4qAgAm+mIiCaBGyolsT1oB5EF+9gztbwRtcAOY1811RJZ0XiQPuOwtZfijpBr
1Pl+SjubRKhLg+lLHEuCQHxkqlTSp+zrjkF+A0hFlB38nJ5P3pIw+b5pM5FCvhY+
w0tBTwkjiRBS9h1z88c74ciKYA/XR4apcMMUrPQZUCHq8P73Wu/Fo2lhnCVGBs6q
nYESyrTcOCDR0c6HP9D2GWxQFtbbCyAfotUjX37EIooTcl7ufAr8IPm8jBx7EzCa
WM841FwbuIgGbFCGYlG1/lOR+Qf7FszKAY5SBJMV/BiyFbxJqZfA5DWfJcrZ9YpW
pl86oKWyEkidwx8OIiB3Y1enPzUUJQ==
=8oUB
-----END PGP SIGNATURE-----
Merge tag 'probes-fixes-v6.12-rc4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fixes from Masami Hiramatsu:
- objpool: Fix choosing allocation for percpu slots
Fixes to allocate objpool's percpu slots correctly according to the
GFP flag. It checks whether "any bit" in GFP_ATOMIC is set to choose
the vmalloc source, but it should check "all bits" in GFP_ATOMIC flag
is set, because GFP_ATOMIC is a combined flag.
- tracing/probes: Fix MAX_TRACE_ARGS limit handling
If more than MAX_TRACE_ARGS are passed for creating a probe event,
the entries over MAX_TRACE_ARG in trace_arg array are not
initialized. Thus if the kernel accesses those entries, it crashes.
This rejects creating event if the number of arguments is over
MAX_TRACE_ARGS.
- tracing: Consider the NUL character when validating the event length
A strlen() is used when parsing the event name, and the original code
does not consider the terminal null byte. Thus it can pass the name
one byte longer than the buffer. This fixes to check it correctly.
* tag 'probes-fixes-v6.12-rc4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Consider the NULL character when validating the event length
tracing/probes: Fix MAX_TRACE_ARGS limit handling
objpool: fix choosing allocation for percpu slots
-----BEGIN PGP SIGNATURE-----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=sYxX
-----END PGP SIGNATURE-----
Merge tag 'for-6.12-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- mount option fixes:
- fix handling of compression mount options on remount
- reject rw remount in case there are options that don't work
in read-write mode (like rescue options)
- fix zone accounting of unusable space
- fix in-memory corruption when merging extent maps
- fix delalloc range locking for sector < page
- use more convenient default value of drop subtree threshold, clean
more subvolumes without the fallback to marking quotas inconsistent
- fix smatch warning about incorrect value passed to ERR_PTR
* tag 'for-6.12-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix passing 0 to ERR_PTR in btrfs_search_dir_index_item()
btrfs: reject ro->rw reconfiguration if there are hard ro requirements
btrfs: fix read corruption due to race with extent map merging
btrfs: fix the delalloc range locking if sector size < page size
btrfs: qgroup: set a more sane default value for subtree drop threshold
btrfs: clear force-compress on remount when compress mount option is given
btrfs: zoned: fix zone unusable accounting for freed reserved extent
Lots of hotfixes:
- transaction restart injection has been shaking out a few things
- fix a data corruption in the buffered write path on -ENOSPC, found by
xfstests generic/299
- Some small show_options fixes
- Repair mismatches in inode hash type, seed: different snapshot
versions of an inode must have the same hash/type seed, used for
directory entries and xattrs. We were checking the hash seed, but not
the type, and a user contributed a filesystem where the hash type on
one inode had somehow been flipped; these fixes allow his filesystem
to repair.
Additionally, the hash type flip made some directory entries
invisible, which were then recreated by userspace; so the hash check
code now checks for duplicate non dangling dirents, and renames one of
them if necessary.
- Don't use wait_event_interruptible() in recovery: this fixes some
filesystems failing to mount with -ERESTARTSYS
- Workaround for kvmalloc not supporting > INT_MAX allocations, causing
an -ENOMEM when allocating the sorted array of journal keys: this
allows a 75 TB filesystem to mount
- Make sure bch_inode_unpacked.bi_snapshot is set in the old inode
compat path: this alllows Marcin's filesystem (in use since before
6.7) to repair and mount.
-----BEGIN PGP SIGNATURE-----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=OpYN
-----END PGP SIGNATURE-----
Merge tag 'bcachefs-2024-10-22' of https://github.com/koverstreet/bcachefs
Pull bcachefs fixes from Kent Overstreet:
"Lots of hotfixes:
- transaction restart injection has been shaking out a few things
- fix a data corruption in the buffered write path on -ENOSPC, found
by xfstests generic/299
- Some small show_options fixes
- Repair mismatches in inode hash type, seed: different snapshot
versions of an inode must have the same hash/type seed, used for
directory entries and xattrs. We were checking the hash seed, but
not the type, and a user contributed a filesystem where the hash
type on one inode had somehow been flipped; these fixes allow his
filesystem to repair.
Additionally, the hash type flip made some directory entries
invisible, which were then recreated by userspace; so the hash
check code now checks for duplicate non dangling dirents, and
renames one of them if necessary.
- Don't use wait_event_interruptible() in recovery: this fixes some
filesystems failing to mount with -ERESTARTSYS
- Workaround for kvmalloc not supporting > INT_MAX allocations,
causing an -ENOMEM when allocating the sorted array of journal
keys: this allows a 75 TB filesystem to mount
- Make sure bch_inode_unpacked.bi_snapshot is set in the old inode
compat path: this alllows Marcin's filesystem (in use since before
6.7) to repair and mount"
* tag 'bcachefs-2024-10-22' of https://github.com/koverstreet/bcachefs: (26 commits)
bcachefs: Set bch_inode_unpacked.bi_snapshot in old inode path
bcachefs: Mark more errors as AUTOFIX
bcachefs: Workaround for kvmalloc() not supporting > INT_MAX allocations
bcachefs: Don't use wait_event_interruptible() in recovery
bcachefs: Fix __bch2_fsck_err() warning
bcachefs: fsck: Improve hash_check_key()
bcachefs: bch2_hash_set_or_get_in_snapshot()
bcachefs: Repair mismatches in inode hash seed, type
bcachefs: Add hash seed, type to inode_to_text()
bcachefs: INODE_STR_HASH() for bch_inode_unpacked
bcachefs: Run in-kernel offline fsck without ratelimit errors
bcachefs: skip mount option handle for empty string.
bcachefs: fix incorrect show_options results
bcachefs: Fix data corruption on -ENOSPC in buffered write path
bcachefs: bch2_folio_reservation_get_partial() is now better behaved
bcachefs: fix disk reservation accounting in bch2_folio_reservation_get()
bcachefS: ec: fix data type on stripe deletion
bcachefs: Don't use commit_do() unnecessarily
bcachefs: handle restarts in bch2_bucket_io_time_reset()
bcachefs: fix restart handling in __bch2_resume_logged_op_finsert()
...
This reverts commit 1325e4a91a.
using multipage folios apparently break some madvise operations like
MADV_PAGEOUT which do not reliably unload the specified page anymore,
Revert the patch until that is figured out.
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Fixes: 1325e4a91a ("9p: Enable multipage folios")
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
