IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
Alexander reported a circular lock dependency revealed by the mmap1 ltp
test:
LOCKDEP_CIRCULAR (suite: ltp, case: mtest06 (mmap1))
WARNING: possible circular locking dependency detected
5.17.0-20220113.rc0.git0.f2211f194038.300.fc35.s390x+debug #1 Not tainted
------------------------------------------------------
mmap1/202299 is trying to acquire lock:
00000001892c0188 (css_set_lock){..-.}-{2:2}, at: obj_cgroup_release+0x4a/0xe0
but task is already holding lock:
00000000ca3b3818 (&sighand->siglock){-.-.}-{2:2}, at: force_sig_info_to_task+0x38/0x180
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&sighand->siglock){-.-.}-{2:2}:
__lock_acquire+0x604/0xbd8
lock_acquire.part.0+0xe2/0x238
lock_acquire+0xb0/0x200
_raw_spin_lock_irqsave+0x6a/0xd8
__lock_task_sighand+0x90/0x190
cgroup_freeze_task+0x2e/0x90
cgroup_migrate_execute+0x11c/0x608
cgroup_update_dfl_csses+0x246/0x270
cgroup_subtree_control_write+0x238/0x518
kernfs_fop_write_iter+0x13e/0x1e0
new_sync_write+0x100/0x190
vfs_write+0x22c/0x2d8
ksys_write+0x6c/0xf8
__do_syscall+0x1da/0x208
system_call+0x82/0xb0
-> #0 (css_set_lock){..-.}-{2:2}:
check_prev_add+0xe0/0xed8
validate_chain+0x736/0xb20
__lock_acquire+0x604/0xbd8
lock_acquire.part.0+0xe2/0x238
lock_acquire+0xb0/0x200
_raw_spin_lock_irqsave+0x6a/0xd8
obj_cgroup_release+0x4a/0xe0
percpu_ref_put_many.constprop.0+0x150/0x168
drain_obj_stock+0x94/0xe8
refill_obj_stock+0x94/0x278
obj_cgroup_charge+0x164/0x1d8
kmem_cache_alloc+0xac/0x528
__sigqueue_alloc+0x150/0x308
__send_signal+0x260/0x550
send_signal+0x7e/0x348
force_sig_info_to_task+0x104/0x180
force_sig_fault+0x48/0x58
__do_pgm_check+0x120/0x1f0
pgm_check_handler+0x11e/0x180
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&sighand->siglock);
lock(css_set_lock);
lock(&sighand->siglock);
lock(css_set_lock);
*** DEADLOCK ***
2 locks held by mmap1/202299:
#0: 00000000ca3b3818 (&sighand->siglock){-.-.}-{2:2}, at: force_sig_info_to_task+0x38/0x180
#1: 00000001892ad560 (rcu_read_lock){....}-{1:2}, at: percpu_ref_put_many.constprop.0+0x0/0x168
stack backtrace:
CPU: 15 PID: 202299 Comm: mmap1 Not tainted 5.17.0-20220113.rc0.git0.f2211f194038.300.fc35.s390x+debug #1
Hardware name: IBM 3906 M04 704 (LPAR)
Call Trace:
dump_stack_lvl+0x76/0x98
check_noncircular+0x136/0x158
check_prev_add+0xe0/0xed8
validate_chain+0x736/0xb20
__lock_acquire+0x604/0xbd8
lock_acquire.part.0+0xe2/0x238
lock_acquire+0xb0/0x200
_raw_spin_lock_irqsave+0x6a/0xd8
obj_cgroup_release+0x4a/0xe0
percpu_ref_put_many.constprop.0+0x150/0x168
drain_obj_stock+0x94/0xe8
refill_obj_stock+0x94/0x278
obj_cgroup_charge+0x164/0x1d8
kmem_cache_alloc+0xac/0x528
__sigqueue_alloc+0x150/0x308
__send_signal+0x260/0x550
send_signal+0x7e/0x348
force_sig_info_to_task+0x104/0x180
force_sig_fault+0x48/0x58
__do_pgm_check+0x120/0x1f0
pgm_check_handler+0x11e/0x180
INFO: lockdep is turned off.
In this example a slab allocation from __send_signal() caused a
refilling and draining of a percpu objcg stock, resulted in a releasing
of another non-related objcg. Objcg release path requires taking the
css_set_lock, which is used to synchronize objcg lists.
This can create a circular dependency with the sighandler lock, which is
taken with the locked css_set_lock by the freezer code (to freeze a
task).
In general it seems that using css_set_lock to synchronize objcg lists
makes any slab allocations and deallocation with the locked css_set_lock
and any intervened locks risky.
To fix the problem and make the code more robust let's stop using
css_set_lock to synchronize objcg lists and use a new dedicated spinlock
instead.
Link: https://lkml.kernel.org/r/Yfm1IHmoGdyUR81T@carbon.dhcp.thefacebook.com
Fixes: bf4f059954 ("mm: memcg/slab: obj_cgroup API")
Signed-off-by: Roman Gushchin <guro@fb.com>
Reported-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Waiman Long <longman@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Reviewed-by: Jeremy Linton <jeremy.linton@arm.com>
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A soft lockup bug in kcompactd was reported in a private bugzilla with
the following visible in dmesg;
watchdog: BUG: soft lockup - CPU#33 stuck for 26s! [kcompactd0:479]
watchdog: BUG: soft lockup - CPU#33 stuck for 52s! [kcompactd0:479]
watchdog: BUG: soft lockup - CPU#33 stuck for 78s! [kcompactd0:479]
watchdog: BUG: soft lockup - CPU#33 stuck for 104s! [kcompactd0:479]
The machine had 256G of RAM with no swap and an earlier failed
allocation indicated that node 0 where kcompactd was run was potentially
unreclaimable;
Node 0 active_anon:29355112kB inactive_anon:2913528kB active_file:0kB
inactive_file:0kB unevictable:64kB isolated(anon):0kB isolated(file):0kB
mapped:8kB dirty:0kB writeback:0kB shmem:26780kB shmem_thp:
0kB shmem_pmdmapped: 0kB anon_thp: 23480320kB writeback_tmp:0kB
kernel_stack:2272kB pagetables:24500kB all_unreclaimable? yes
Vlastimil Babka investigated a crash dump and found that a task
migrating pages was trying to drain PCP lists;
PID: 52922 TASK: ffff969f820e5000 CPU: 19 COMMAND: "kworker/u128:3"
Call Trace:
__schedule
schedule
schedule_timeout
wait_for_completion
__flush_work
__drain_all_pages
__alloc_pages_slowpath.constprop.114
__alloc_pages
alloc_migration_target
migrate_pages
migrate_to_node
do_migrate_pages
cpuset_migrate_mm_workfn
process_one_work
worker_thread
kthread
ret_from_fork
This failure is specific to CONFIG_PREEMPT=n builds. The root of the
problem is that kcompact0 is not rescheduling on a CPU while a task that
has isolated a large number of the pages from the LRU is waiting on
kcompact0 to reschedule so the pages can be released. While
shrink_inactive_list() only loops once around too_many_isolated, reclaim
can continue without rescheduling if sc->skipped_deactivate == 1 which
could happen if there was no file LRU and the inactive anon list was not
low.
Link: https://lkml.kernel.org/r/20220203100326.GD3301@suse.de
Fixes: d818fca1ca ("mm/vmscan: throttle reclaim and compaction when too may pages are isolated")
Signed-off-by: Mel Gorman <mgorman@suse.de>
Debugged-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The syzbot reported the below BUG:
kernel BUG at include/linux/page-flags.h:785!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4392 Comm: syz-executor560 Not tainted 5.16.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:PageDoubleMap include/linux/page-flags.h:785 [inline]
RIP: 0010:__page_mapcount+0x2d2/0x350 mm/util.c:744
Call Trace:
page_mapcount include/linux/mm.h:837 [inline]
smaps_account+0x470/0xb10 fs/proc/task_mmu.c:466
smaps_pte_entry fs/proc/task_mmu.c:538 [inline]
smaps_pte_range+0x611/0x1250 fs/proc/task_mmu.c:601
walk_pmd_range mm/pagewalk.c:128 [inline]
walk_pud_range mm/pagewalk.c:205 [inline]
walk_p4d_range mm/pagewalk.c:240 [inline]
walk_pgd_range mm/pagewalk.c:277 [inline]
__walk_page_range+0xe23/0x1ea0 mm/pagewalk.c:379
walk_page_vma+0x277/0x350 mm/pagewalk.c:530
smap_gather_stats.part.0+0x148/0x260 fs/proc/task_mmu.c:768
smap_gather_stats fs/proc/task_mmu.c:741 [inline]
show_smap+0xc6/0x440 fs/proc/task_mmu.c:822
seq_read_iter+0xbb0/0x1240 fs/seq_file.c:272
seq_read+0x3e0/0x5b0 fs/seq_file.c:162
vfs_read+0x1b5/0x600 fs/read_write.c:479
ksys_read+0x12d/0x250 fs/read_write.c:619
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
The reproducer was trying to read /proc/$PID/smaps when calling
MADV_FREE at the mean time. MADV_FREE may split THPs if it is called
for partial THP. It may trigger the below race:
CPU A CPU B
----- -----
smaps walk: MADV_FREE:
page_mapcount()
PageCompound()
split_huge_page()
page = compound_head(page)
PageDoubleMap(page)
When calling PageDoubleMap() this page is not a tail page of THP anymore
so the BUG is triggered.
This could be fixed by elevated refcount of the page before calling
mapcount, but that would prevent it from counting migration entries, and
it seems overkilling because the race just could happen when PMD is
split so all PTE entries of tail pages are actually migration entries,
and smaps_account() does treat migration entries as mapcount == 1 as
Kirill pointed out.
Add a new parameter for smaps_account() to tell this entry is migration
entry then skip calling page_mapcount(). Don't skip getting mapcount
for device private entries since they do track references with mapcount.
Pagemap also has the similar issue although it was not reported. Fixed
it as well.
[shy828301@gmail.com: v4]
Link: https://lkml.kernel.org/r/20220203182641.824731-1-shy828301@gmail.com
[nathan@kernel.org: avoid unused variable warning in pagemap_pmd_range()]
Link: https://lkml.kernel.org/r/20220207171049.1102239-1-nathan@kernel.org
Link: https://lkml.kernel.org/r/20220120202805.3369-1-shy828301@gmail.com
Fixes: e9b61f1985 ("thp: reintroduce split_huge_page()")
Signed-off-by: Yang Shi <shy828301@gmail.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: syzbot+1f52b3a18d5633fa7f82@syzkaller.appspotmail.com
Acked-by: David Hildenbrand <david@redhat.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Jann Horn <jannh@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rui Salvaterra reported that Aisleroit solitaire crashes with "Wrong
__data_start/_end pair" assertion from libgc after update to v5.17-rc1.
Bisection pointed to commit 9630f0d60f ("fs/binfmt_elf: use PT_LOAD
p_align values for static PIE") that fixed handling of static PIEs, but
made the condition that guards load_bias calculation to exclude loader
binaries.
Restoring the check for presence of interpreter fixes the problem.
Link: https://lkml.kernel.org/r/20220202121433.3697146-1-rppt@kernel.org
Fixes: 9630f0d60f ("fs/binfmt_elf: use PT_LOAD p_align values for static PIE")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reported-by: Rui Salvaterra <rsalvaterra@gmail.com>
Tested-by: Rui Salvaterra <rsalvaterra@gmail.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: "H.J. Lu" <hjl.tools@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is a fairly large set of bugfixes, most of which had
been sent a while ago but only now made it into the soc tree:
Maintainer file updates:
- Claudiu Beznea now co-maintains the at91 soc family,
replacing Ludovic Desroches.
- Michael Walle maintains the sl28cpld drivers
- Alain Volmat and Raphael Gallais-Pou take over some
drivers for ST platforms
- Alim Akhtar is an additional reviewer for Samsung platforms
Code fixes:
- Op-tee had a problem with object lifetime that needs
a slightly complex fix, as well as another bug with
error handling.
- Several minor issues for the OMAP platform, including
a regression with the timer
- A Kconfig change to fix a build-time issue on Intel
SoCFPGA
Device tree fixes:
- The Amlogic Meson platform fixes a boot regression on
am1-odroid, a spurious interrupt, and a problem with
reserved memory regions
- In the i.MX platform, several bug fixes are needed to
make devices work correctly: SD card detection,
alarmtimer, and sound card on some board. One patch
for the GPU got in there by accident and gets reverted
again.
- TI K3 needs a fix for J721S2 serial port numbers
- ux500 needs a fix to mount the SD card as root on
the Skomer phone.
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAmIG1ZEACgkQmmx57+YA
GNl89A/9G+BMgx/uWwjYPrKqT3uYHfG6g1RJMnJ1c9R/K5NaKBUFJ5KPWaStfnII
17HKcQ18ugGk2gGpFs0ir4upRReDeb3MbmGSpytU7GnNgtGqSJIMcczMVXirsrCd
52N5FKasDZHBM4GYNyFwnZ/HUXyoSYPzt1pA9L9qKqYz3CS74DcgIkeqXR8J3KMn
VZhU5uFxJAk82IDHkRMqXVWykXObphB26iqtRRrf9HmwNirOKR8BLBWfeWEBwxpt
ecqJtQAoLzTZVBQu57Lel7QPUsJh3/xoSZlbUlhY8bUvGKHQvRlOx47x7kJ3AUNS
5Hi7+PY3qrYG3/B1N9XSnFeiHGCAoVR6jHA8tPGIMsnMdJ8HywwUh8AI2if9I9Hk
nqbeGRG3eOoGJZ1oiJ0YMSadU2FCUG2TxrbyI7JcHzyjNCAgkZ7mXawCHgqLry1S
azHDdRlIQHtDCxLu/Fept0ujGVJe1PYLzAfyzezrcQrf7N1dnbgBbuvQt7bQ3PQD
Xcsx9xwPD3kJeXeVB+gGyDjZTO4zpD59+P7DGwwRNKlVKtzLzbJHQ3/+/ajdKbHP
JlWSlDAdLxt4MaeFf3fZHRtO4tS4nYRUg0CsLjwPxd6jGmFT4V5Dzj2nHGQIarpw
THQt15abGikpVHTZNSvzOkr7rvJDDmHUniZS480KhxT6E2Aldw8=
=bRzz
-----END PGP SIGNATURE-----
Merge tag 'soc-fixes-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"This is a fairly large set of bugfixes, most of which had been sent a
while ago but only now made it into the soc tree:
Maintainer file updates:
- Claudiu Beznea now co-maintains the at91 soc family, replacing
Ludovic Desroches.
- Michael Walle maintains the sl28cpld drivers
- Alain Volmat and Raphael Gallais-Pou take over some drivers for ST
platforms
- Alim Akhtar is an additional reviewer for Samsung platforms
Code fixes:
- Op-tee had a problem with object lifetime that needs a slightly
complex fix, as well as another bug with error handling.
- Several minor issues for the OMAP platform, including a regression
with the timer
- A Kconfig change to fix a build-time issue on Intel SoCFPGA
Device tree fixes:
- The Amlogic Meson platform fixes a boot regression on am1-odroid, a
spurious interrupt, and a problem with reserved memory regions
- In the i.MX platform, several bug fixes are needed to make devices
work correctly: SD card detection, alarmtimer, and sound card on
some board. One patch for the GPU got in there by accident and gets
reverted again.
- TI K3 needs a fix for J721S2 serial port numbers
- ux500 needs a fix to mount the SD card as root on the Skomer phone"
* tag 'soc-fixes-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (46 commits)
Revert "arm64: dts: imx8mn-venice-gw7902: disable gpu"
arm64: Remove ARCH_VULCAN
MAINTAINERS: add myself as a maintainer for the sl28cpld
MAINTAINERS: add IRC to ARM sub-architectures and Devicetree
MAINTAINERS: arm: samsung: add Git tree and IRC
ARM: dts: Fix boot regression on Skomer
ARM: dts: spear320: Drop unused and undocumented 'irq-over-gpio' property
soc: aspeed: lpc-ctrl: Block error printing on probe defer cases
docs/ABI: testing: aspeed-uart-routing: Escape asterisk
MAINTAINERS: update drm/stm drm/sti and cec/sti maintainers
MAINTAINERS: Update Benjamin Gaignard maintainer status
ARM: socfpga: fix missing RESET_CONTROLLER
arm64: dts: meson-sm1-odroid: fix boot loop after reboot
arm64: dts: meson-g12: drop BL32 region from SEI510/SEI610
arm64: dts: meson-g12: add ATF BL32 reserved-memory region
arm64: dts: meson-gx: add ATF BL32 reserved-memory region
arm64: dts: meson-sm1-bananapi-m5: fix wrong GPIO domain for GPIOE_2
arm64: dts: meson-sm1-odroid: use correct enable-gpio pin for tf-io regulator
arm64: dts: meson-g12b-odroid-n2: fix typo 'dio2133'
optee: use driver internal tee_context for some rpc
...
-----BEGIN PGP SIGNATURE-----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=uilL
-----END PGP SIGNATURE-----
Merge tag 'pci-v5.17-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci fix from Bjorn Helgaas:
"Revert a commit that reduced the number of IRQs used but resulted in
interrupt storms (Bjorn Helgaas)"
* tag 'pci-v5.17-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
Revert "PCI/portdrv: Do not setup up IRQs if there are no users"
This reverts commit 0e8ae5a6ff.
0e8ae5a6ff ("PCI/portdrv: Do not setup up IRQs if there are no users")
reduced usage of IRQs when we don't think we need them. But Joey, Sergiu,
and David reported choppy GUI rendering, systems that became unresponsive
every few seconds, incorrect values reported by cpufreq, and high IRQ 16
CPU usage.
Joey bisected the issues to 0e8ae5a6ff, so revert it until we figure out
a better solution.
Link: https://lore.kernel.org/r/20220210222717.GA658201@bhelgaas
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215533
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215546
Reported-by: Joey Corleone <joey.corleone@mail.ru>
Reported-by: Sergiu Deitsch <sergiu.deitsch@gmail.com>
Reported-by: David Spencer <dspencer577@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v5.16+
Cc: Jan Kiszka <jan.kiszka@siemens.com>
* A fix to avoid undefined behavior when stack backtracing, which
manifests in GCC as incorrect stack addresses.
* A few fixes for the XIP kernels.
* A fix to tracking NUMA state on CPU hotplug.
* Support for the recently relesaed binutils-2.38, which changed the
default ISA version to one without CSRs or fence.i in I.
-----BEGIN PGP SIGNATURE-----
iQJHBAABCAAxFiEEAM520YNJYN/OiG3470yhUCzLq0EFAmIGtOwTHHBhbG1lckBk
YWJiZWx0LmNvbQAKCRDvTKFQLMurQcR9D/9lzWPlayIts89Jz3DHrxVeBY13E3sh
VqbnFxXzKe8Z1RwH4/ThTfsRP1MXislmc4xoRwUfRVJj2OWLDEBJ/2Sj/AJPFF/Z
GopDgaT4pdFQ4DH5G8zgnkeAHqa+pMnXfmnmIuwIK2TbropDHoeR3tZzcnlevB7G
CQL/N7aXtScnnXOAuTaFl9Pgxf5vnqA6NURrWMUXF6Y1e2vQKOg4eDmMTpyb+sG+
3N/N5vyHg2EBi9nng05uinycjjNUIXfkJ861ZtAVqQUws1+5JtpMsEriadn6LRi8
Uw+N7XeGdLcN79cHP70Wj4nf256VLXj/B2G3lL2oXRdidyVXKwv3UrbnqPhUvHOn
QSO+siBetbwG8VvHB8jOZ1x7qKnYUdPgtbwda6EyYDwMrxVRE6dnGA5eW9IQfVse
7LgGWZCYAcEdzTgPnq9C0mRdgPfZPJTkNnyF5VhnwIDt3mBKEQiXxjK6t4VJxJge
VK80d8hhabTjxWVRuJIaxdSarRfCWfx3416TAgxbQAvoodDLWK1SQ9xfIgU+fXhB
1PqHOu9w7M3YhTGb7yTX2mG9mqsCEx+qYajfZdZS3Ejnnu+6eFwjK4LN3jNip4tQ
2TNqVjWgYmGxSytlI9ZoHsS+CAzNRN9rm7KheIrpqgiz7JjVvZtWkqhuW4YhHtmY
d+7I3O5DvPHsqw==
=MVlA
-----END PGP SIGNATURE-----
Merge tag 'riscv-for-linus-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A fix to avoid undefined behavior when stack backtracing, which
manifests in GCC as incorrect stack addresses
- A few fixes for the XIP kernels
- A fix to tracking NUMA state on CPU hotplug
- Support for the recently relesaed binutils-2.38, which changed the
default ISA version to one without CSRs or fence.i in 'I' extension
* tag 'riscv-for-linus-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: fix build with binutils 2.38
riscv: cpu-hotplug: clear cpu from numa map when teardown
riscv: extable: fix err reg writing in dedicated uaccess handler
riscv/mm: Add XIP_FIXUP for riscv_pfn_base
riscv/mm: Add XIP_FIXUP for phys_ram_base
riscv: Fix XIP_FIXUP_FLASH_OFFSET
riscv: eliminate unreliable __builtin_frame_address(1)
- Enable Cortex-A510 erratum 2051678 by default as we do with other
errata.
- arm64 IORT: Check the node revision for PMCG resources to cope with
old firmware based on a broken revision of the spec that had no way to
describe the second register page (when an implementation is using the
recommended RELOC_CTRS feature).
-----BEGIN PGP SIGNATURE-----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=n9qz
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Enable Cortex-A510 erratum 2051678 by default as we do with other
errata.
- arm64 IORT: Check the node revision for PMCG resources to cope with
old firmware based on a broken revision of the spec that had no way
to describe the second register page (when an implementation is using
the recommended RELOC_CTRS feature).
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
ACPI/IORT: Check node revision for PMCG resources
arm64: Enable Cortex-A510 erratum 2051678 by default
- Revert a recent change that attempted to avoid issues with
conflicting address ranges during PCI initialization, because it
turned out to introduce a regression (Hans de Goede).
- Revert a change that limited EC GPE wakeups from suspend-to-idle
to systems based on Intel hardware, because it turned out that
systems based on hardware from other vendors depended on that
functionality too (Mario Limonciello).
- Fix two issues related to the handling of wakeup interrupts and
wakeup events signaled through the EC GPE during suspend-to-idle
on x86 (Rafael Wysocki).
-----BEGIN PGP SIGNATURE-----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=aGYp
-----END PGP SIGNATURE-----
Merge tag 'acpi-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These revert two commits that turned out to be problematic and fix two
issues related to wakeup from suspend-to-idle on x86.
Specifics:
- Revert a recent change that attempted to avoid issues with
conflicting address ranges during PCI initialization, because it
turned out to introduce a regression (Hans de Goede).
- Revert a change that limited EC GPE wakeups from suspend-to-idle to
systems based on Intel hardware, because it turned out that systems
based on hardware from other vendors depended on that functionality
too (Mario Limonciello).
- Fix two issues related to the handling of wakeup interrupts and
wakeup events signaled through the EC GPE during suspend-to-idle on
x86 (Rafael Wysocki)"
* tag 'acpi-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
x86/PCI: revert "Ignore E820 reservations for bridge windows on newer systems"
PM: s2idle: ACPI: Fix wakeup interrupts handling
ACPI: PM: s2idle: Cancel wakeup before dispatching EC GPE
ACPI: PM: Revert "Only mark EC GPE for wakeup on Intel systems"
-----BEGIN PGP SIGNATURE-----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=tytd
-----END PGP SIGNATURE-----
Merge tag 'block-5.17-2022-02-11' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull request
- nvme-tcp: fix bogus request completion when failing to send AER
(Sagi Grimberg)
- add the missing nvme_complete_req tracepoint for batched
completion (Bean Huo)
- Revert of the loop async autoclear issue that has continued to plague
us this release. A few patchsets exists to improve this, but they are
too invasive to be considered at this point (Tetsuo)
* tag 'block-5.17-2022-02-11' of git://git.kernel.dk/linux-block:
loop: revert "make autoclear operation asynchronous"
nvme-tcp: fix bogus request completion when failing to send AER
nvme: add nvme_complete_req tracepoint for batched completion
- use sleeping variants of GPIO accessors where needed in gpio-aggregator
- never return kernel's internal error codes to user-space in gpiolib core
- use the correct register for reading output values in gpio-sifive
- fix line hogging in gpio-sim
-----BEGIN PGP SIGNATURE-----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=DcXD
-----END PGP SIGNATURE-----
Merge tag 'gpio-fixes-for-v5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- use sleeping variants of GPIO accessors where needed
in gpio-aggregator
- never return kernel's internal error codes to user-space
in gpiolib core
- use the correct register for reading output values in
gpio-sifive
- fix line hogging in gpio-sim
* tag 'gpio-fixes-for-v5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: sim: fix hogs with custom chip labels
gpio: sifive: use the correct register to read output values
gpiolib: Never return internal error codes to user space
gpio: aggregator: Fix calling into sleeping GPIO controllers
A couple of additional fixes for 5.17-rc4:
* Fix compilation warnings in the sata_fsl driver (powerpc), from me.
* Disable TRIM commands on M88V29 devices as these commands are failing
despite the device reporting it supports TRIM. From Zoltan.
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQSRPv8tYSvhwAzJdzjdoc3SxdoYdgUCYgZe8wAKCRDdoc3SxdoY
doAwAP42re55XPj2ZDxm3iZ3GwvDtg4UZ6A6YDOG4e1wiHCbQgEAjwb18nwkuldj
1YU4hVwoSsjxcPYndXMQ3ZhD+Rxy9gA=
=b45Z
-----END PGP SIGNATURE-----
Merge tag 'ata-5.17-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ata fixes from Damien Le Moal:
"A couple of additional fixes for 5.17-rc4:
- Fix compilation warnings in the sata_fsl driver (powerpc) (me)
- Disable TRIM commands on M88V29 devices as these commands are
failing despite the device reporting it supports TRIM (Zoltan)"
* tag 'ata-5.17-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: libata-core: Disable TRIM on M88V29
ata: sata_fsl: fix sscanf() and sysfs_emit() format strings
- Fixes to the RTLA tooling.
- A fix to a tp_printk overriding tp_printk_stop_on_boot on command line.
-----BEGIN PGP SIGNATURE-----
iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCYgWtxxQccm9zdGVkdEBn
b29kbWlzLm9yZwAKCRAp5XQQmuv6qsaaAQD+4lcpIRKdkfGb09xMlh8Gr8OvRoVb
5XAhzHVpETjGUAEAyIJAG+7Epw/St8FCSupNAEWTzGghjhoJhFblTd17jAg=
=CCON
-----END PGP SIGNATURE-----
Merge tag 'trace-v5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fixes to the RTLA tooling
- A fix to a tp_printk overriding tp_printk_stop_on_boot on the
command line
* tag 'trace-v5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix tp_printk option related with tp_printk_stop_on_boot
MAINTAINERS: Add RTLA entry
rtla: Fix segmentation fault when failing to enable -t
rtla/trace: Error message fixup
rtla/utils: Fix session duration parsing
rtla: Follow kernel version
If svm_deliver_avic_intr is called just after the target vcpu's AVIC got
inhibited, it might read a stale value of vcpu->arch.apicv_active
which can lead to the target vCPU not noticing the interrupt.
To fix this use load-acquire/store-release so that, if the target vCPU
is IN_GUEST_MODE, we're guaranteed to see a previous disabling of the
AVIC. If AVIC has been disabled in the meanwhile, proceed with the
KVM_REQ_EVENT-based delivery.
Incomplete IPI vmexit has the same races as svm_deliver_avic_intr, and
in fact it can be handled in exactly the same way; the only difference
lies in who has set IRR, whether svm_deliver_interrupt or the processor.
Therefore, svm_complete_interrupt_delivery can be used to fix incomplete
IPI vmexits as well.
Co-developed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
SVM has to set IRR for both the AVIC and the software-LAPIC case,
so pull it up to the common function that handles both configurations.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The check on the current CPU adds an extra level of indentation to
svm_deliver_avic_intr and conflates documentation on what happens
if the vCPU exits (of interest to svm_deliver_avic_intr) and migrates
(only of interest to avic_ring_doorbell, which calls get/put_cpu()).
Extract the wrmsr to a separate function and rewrite the
comment in svm_deliver_avic_intr().
Co-developed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There is no vmx_pi_mmio_test file. Remove it to get rid of error while
creation of selftest archive:
rsync: [sender] link_stat "/kselftest/kvm/x86_64/vmx_pi_mmio_test" failed: No such file or directory (2)
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1333) [sender=3.2.3]
Fixes: 6a58150859 ("selftest: KVM: Add intra host migration tests")
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Message-Id: <20220210172352.1317554-1-usama.anjum@collabora.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- Fix pending state read of a HW interrupt
-----BEGIN PGP SIGNATURE-----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=UV/Z
-----END PGP SIGNATURE-----
Merge tag 'kvmarm-fixes-5.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 5.17, take #3
- Fix pending state read of a HW interrupt
When a file is opened for writing, the vfs code (do_dentry_open)
calls get_write_access for the inode, thus incrementing the inode's write
count. That writer normally then creates a multi-block reservation for
the inode (i_res) that can be re-used by other writers, which speeds up
writes for applications that stupidly loop on open/write/close.
When the writes are all done, the multi-block reservation should be
deleted when the file is closed by the last "writer."
Commit 0ec9b9ea4f broke that concept when it moved the call to
gfs2_rs_delete before the check for FMODE_WRITE. Non-writers have no
business removing the multi-block reservations of writers. In fact, if
someone opens and closes the file for RO while a writer has a
multi-block reservation, the RO closer will delete the reservation
midway through the write, and this results in:
kernel BUG at fs/gfs2/rgrp.c:677! (or thereabouts) which is:
BUG_ON(rs->rs_requested); from function gfs2_rs_deltree.
This patch moves the check back inside the check for FMODE_WRITE.
Fixes: 0ec9b9ea4f ("gfs2: Check for active reservation in gfs2_release")
Cc: stable@vger.kernel.org # v5.12+
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
It turns out that the might_sleep() call that commit 660a6126f8 adds
is triggering occasional data corruption in testing. We're not sure
about the root cause yet, but since this commit was added as a debugging
aid only, revert it for now.
This reverts commit 660a6126f8.
Fixes: 660a6126f8 ("gfs2: check context in gfs2_glock_put")
Cc: stable@vger.kernel.org # v5.16+
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Here are some new device ids for 5.17-rc4.
All have been in linux-next with no reported issues.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQQHbPq+cpGvN/peuzMLxc3C7H1lCAUCYgZ+2gAKCRALxc3C7H1l
CDoSAP9qPhQUn/i4I6ggD4oB25VaGWHxZVaoQYj/R74OjvWxDwEA0+5fIbS9T8qr
rU70IRzH4KDdW3OFPCgr58+MIotAtwc=
=1R+F
-----END PGP SIGNATURE-----
Merge tag 'usb-serial-5.17-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for 5.17-rc4
Here are some new device ids for 5.17-rc4.
All have been in linux-next with no reported issues.
* tag 'usb-serial-5.17-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: cp210x: add CPI Bulk Coin Recycler id
USB: serial: cp210x: add NCR Retail IO box id
USB: serial: ftdi_sio: add support for Brainboxes US-159/235/320
USB: serial: option: add ZTE MF286D modem
USB: serial: ch341: add support for GW Instek USB2.0-Serial devices
The kernel test robot is reporting that xfstest which does
umount ext2 on xfs
umount xfs
sequence started failing, for commit 322c4293ec ("loop: make
autoclear operation asynchronous") removed a guarantee that fput() of
backing file is processed before lo_release() from close() returns to
user mode.
And syzbot is reporting that deferring destroy_workqueue() from
__loop_clr_fd() to a WQ context did not help [1]. Revert that commit.
Link: https://syzkaller.appspot.com/bug?extid=831661966588c802aae9 [1]
Reported-by: kernel test robot <oliver.sang@intel.com>
Acked-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reported-by: syzbot <syzbot+831661966588c802aae9@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Link: https://lore.kernel.org/r/20220211071554.3424-1-penguin-kernel@I-love.SAKURA.ne.jp
Signed-off-by: Jens Axboe <axboe@kernel.dk>
If we fail to copy the just created file descriptor to userland, we
try to clean up by putting back 'fd' and freeing 'ib'. The code uses
put_unused_fd() for the former which is wrong, as the file descriptor
was already published by fd_install() which gets called internally by
anon_inode_getfd().
This makes the error handling code leaving a half cleaned up file
descriptor table around and a partially destructed 'file' object,
allowing userland to play use-after-free tricks on us, by abusing
the still usable fd and making the code operate on a dangling
'file->private_data' pointer.
Instead of leaving the kernel in a partially corrupted state, don't
attempt to explicitly clean up and leave this to the process exit
path that'll release any still valid fds, including the one created
by the previous call to anon_inode_getfd(). Simply return -EFAULT to
indicate the error.
Fixes: f73f7f4da5 ("iio: buffer: add ioctl() to support opening extra buffers for IIO device")
Cc: stable@kernel.org
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Alexandru Ardelean <ardeleanalex@gmail.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Nuno Sa <Nuno.Sa@analog.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mathias Krause <minipli@grsecurity.net>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It appears that a read access to GIC[DR]_I[CS]PENDRn doesn't always
result in the pending interrupts being accurately reported if they are
mapped to a HW interrupt. This is particularily visible when acking
the timer interrupt and reading the GICR_ISPENDR1 register immediately
after, for example (the interrupt appears as not-pending while it really
is...).
This is because a HW interrupt has its 'active and pending state' kept
in the *physical* distributor, and not in the virtual one, as mandated
by the spec (this is what allows the direct deactivation). The virtual
distributor only caries the pending and active *states* (note the
plural, as these are two independent and non-overlapping states).
Fix it by reading the HW state back, either from the timer itself or
from the distributor if necessary.
Reported-by: Ricardo Koller <ricarkol@google.com>
Tested-by: Ricardo Koller <ricarkol@google.com>
Reviewed-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220208123726.3604198-1-maz@kernel.org
When the gadget driver hasn't been (yet) configured, and the cable is
connected to a HOST, the SFTDISCON gets cleared unconditionally, so the
HOST tries to enumerate it.
At the host side, this can result in a stuck USB port or worse. When
getting lucky, some dmesg can be observed at the host side:
new high-speed USB device number ...
device descriptor read/64, error -110
Fix it in drd, by checking the enabled flag before calling
dwc2_hsotg_core_connect(). It will be called later, once configured,
by the normal flow:
- udc_bind_to_driver
- usb_gadget_connect
- dwc2_hsotg_pullup
- dwc2_hsotg_core_connect
Fixes: 17f934024e ("usb: dwc2: override PHY input signals with usb role switch support")
Cc: stable@kernel.org
Reviewed-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/1644423353-17859-1-git-send-email-fabrice.gasnier@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Check the size of the RNDIS_MSG_SET command given to us before
attempting to respond to an invalid message size.
Reported-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Cc: stable@kernel.org
Tested-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stall the control endpoint in case provided index exceeds array size of
MAX_CONFIG_INTERFACES or when the retrieved function pointer is null.
Signed-off-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 8c67d06f3f ("usb: Link the ports to the connectors they are
attached to") creates a link to the USB Type-C connector for every new
port that is added when possible. If component_add() fails,
usb_hub_create_port_device() prints a warning but does not unregister
the device and does not return errors to the callers.
Syzbot reported a "WARNING in component_del()".
Fix this issue in usb_hub_create_port_device by calling device_unregister()
and returning the errors from component_add().
Fixes: 8c67d06f3f ("usb: Link the ports to the connectors they are attached to")
Reported-and-tested-by: syzbot+60df062e1c41940cae0f@syzkaller.appspotmail.com
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Link: https://lore.kernel.org/r/20220209164500.8769-1-fmdefrancesco@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ax88179_rx_fixup() contains several out-of-bounds accesses that can be
triggered by a malicious (or defective) USB device, in particular:
- The metadata array (hdr_off..hdr_off+2*pkt_cnt) can be out of bounds,
causing OOB reads and (on big-endian systems) OOB endianness flips.
- A packet can overlap the metadata array, causing a later OOB
endianness flip to corrupt data used by a cloned SKB that has already
been handed off into the network stack.
- A packet SKB can be constructed whose tail is far beyond its end,
causing out-of-bounds heap data to be considered part of the SKB's
data.
I have tested that this can be used by a malicious USB device to send a
bogus ICMPv6 Echo Request and receive an ICMPv6 Echo Reply in response
that contains random kernel heap data.
It's probably also possible to get OOB writes from this on a
little-endian system somehow - maybe by triggering skb_cow() via IP
options processing -, but I haven't tested that.
Fixes: e2ca90c276 ("ax88179_178a: ASIX AX88179_178A USB 3.0/2.0 to gigabit ethernet adapter driver")
Cc: stable@kernel.org
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As a quick way to test SECCOMP_RET_KILL, have a negative errno mean to
kill the process.
While we're in here, also swap the arch and syscall arguments so they're
ordered more like how seccomp filters order them.
Signed-off-by: Kees Cook <keescook@chromium.org>
If seccomp tries to kill a process, it should never see that process
again. To enforce this proactively, switch the mode to something
impossible. If encountered: WARN, reject all syscalls, and attempt to
kill the process again even harder.
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Will Drewry <wad@chromium.org>
Fixes: 8112c4f140 ("seccomp: remove 2-phase API")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Fatal SIGSYS signals (i.e. seccomp RET_KILL_* syscall filter actions)
were not being delivered to ptraced pid namespace init processes. Make
sure the SIGNAL_UNKILLABLE doesn't get set for these cases.
Reported-by: Robert Święcki <robert@swiecki.net>
Suggested-by: "Eric W. Biederman" <ebiederm@xmission.com>
Fixes: 00b06da29c ("signal: Add SA_IMMUTABLE to ensure forced siganls do not get changed")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Link: https://lore.kernel.org/lkml/878rui8u4a.fsf@email.froward.int.ebiederm.org
Current release - new code bugs:
- sparx5: fix get_stat64 out-of-bound access and crash
- smc: fix netdev ref tracker misuse
Previous releases - regressions:
- eth: ixgbevf: require large buffers for build_skb on 82599VF,
avoid overflows
- eth: ocelot: fix all IP traffic getting trapped to CPU with PTP
over IP
- bonding: fix rare link activation misses in 802.3ad mode
Previous releases - always broken:
- tcp: fix tcp sock mem accounting in zero-copy corner cases
- remove the cached dst when uncloning an skb dst and its metadata,
since we only have one ref it'd lead to an UaF
- netfilter:
- conntrack: don't refresh sctp entries in closed state
- conntrack: re-init state for retransmitted syn-ack, avoid
connection establishment getting stuck with strange stacks
- ctnetlink: disable helper autoassign, avoid it getting lost
- nft_payload: don't allow transport header access for fragments
- dsa: fix use of devres for mdio throughout drivers
- eth: amd-xgbe: disable interrupts during pci removal
- eth: dpaa2-eth: unregister netdev before disconnecting the PHY
- eth: ice: fix IPIP and SIT TSO offload
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-----BEGIN PGP SIGNATURE-----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=jlhJ
-----END PGP SIGNATURE-----
Merge tag 'net-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter and can.
Current release - new code bugs:
- sparx5: fix get_stat64 out-of-bound access and crash
- smc: fix netdev ref tracker misuse
Previous releases - regressions:
- eth: ixgbevf: require large buffers for build_skb on 82599VF, avoid
overflows
- eth: ocelot: fix all IP traffic getting trapped to CPU with PTP
over IP
- bonding: fix rare link activation misses in 802.3ad mode
Previous releases - always broken:
- tcp: fix tcp sock mem accounting in zero-copy corner cases
- remove the cached dst when uncloning an skb dst and its metadata,
since we only have one ref it'd lead to an UaF
- netfilter:
- conntrack: don't refresh sctp entries in closed state
- conntrack: re-init state for retransmitted syn-ack, avoid
connection establishment getting stuck with strange stacks
- ctnetlink: disable helper autoassign, avoid it getting lost
- nft_payload: don't allow transport header access for fragments
- dsa: fix use of devres for mdio throughout drivers
- eth: amd-xgbe: disable interrupts during pci removal
- eth: dpaa2-eth: unregister netdev before disconnecting the PHY
- eth: ice: fix IPIP and SIT TSO offload"
* tag 'net-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (53 commits)
net: dsa: mv88e6xxx: fix use-after-free in mv88e6xxx_mdios_unregister
net: mscc: ocelot: fix mutex lock error during ethtool stats read
ice: Avoid RTNL lock when re-creating auxiliary device
ice: Fix KASAN error in LAG NETDEV_UNREGISTER handler
ice: fix IPIP and SIT TSO offload
ice: fix an error code in ice_cfg_phy_fec()
net: mpls: Fix GCC 12 warning
dpaa2-eth: unregister the netdev before disconnecting from the PHY
skbuff: cleanup double word in comment
net: macb: Align the dma and coherent dma masks
mptcp: netlink: process IPv6 addrs in creating listening sockets
selftests: mptcp: add missing join check
net: usb: qmi_wwan: Add support for Dell DW5829e
vlan: move dev_put into vlan_dev_uninit
vlan: introduce vlan_dev_free_egress_priority
ax25: fix UAF bugs of net_device caused by rebinding operation
net: dsa: fix panic when DSA master device unbinds on shutdown
net: amd-xgbe: disable interrupts during pci removal
tipc: rate limit warning for received illegal binding update
net: mdio: aspeed: Add missing MODULE_DEVICE_TABLE
...
Vijay reported that the "unclobbered_vdso_oversubscribed" selftest
triggers the softlockup detector.
Actual SGX systems have 128GB of enclave memory or more. The
"unclobbered_vdso_oversubscribed" selftest creates one enclave which
consumes all of the enclave memory on the system. Tearing down such a
large enclave takes around a minute, most of it in the loop where
the EREMOVE instruction is applied to each individual 4k enclave page.
Spending one minute in a loop triggers the softlockup detector.
Add a cond_resched() to give other tasks a chance to run and placate
the softlockup detector.
Cc: stable@vger.kernel.org
Fixes: 1728ab54b4 ("x86/sgx: Add a page reclaimer")
Reported-by: Vijay Dhanraj <vijay.dhanraj@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko@kernel.org> (kselftest as sanity check)
Link: https://lkml.kernel.org/r/ced01cac1e75f900251b0a4ae1150aa8ebd295ec.1644345232.git.reinette.chatre@intel.com
This Kselftest fixes updated for Linux 5.17-rc4 consists of build and
run-time fixes to pidfd, clone3, and ir tests.
-----BEGIN PGP SIGNATURE-----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=UT3I
-----END PGP SIGNATURE-----
Merge tag 'linux-kselftest-fixes-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
"Build and run-time fixes to pidfd, clone3, and ir tests"
* tag 'linux-kselftest-fixes-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/ir: fix build with ancient kernel headers
selftests: fixup build warnings in pidfd / clone3 tests
pidfd: fix test failure due to stack overflow on some arches
This KUnit fixes update for Linux 5.17-rc4 consists of bug fixes
to the test and usage documentation.
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmIFYvMACgkQCwJExA0N
QxxO2xAA40u5YaQ7U2hJgHQr1Oh5CIW8z62EiHHa2o59tbkmcaeAfd6O2iHEbKSp
hWB4DJkod61PLtzQLFIH7uKDKiRfljygSuPaAH+igCo5qKAIXlhpE01DBGbVa+68
ULyi8s78Ak39R9pZsMqm9diDUGdxQVUjDPpEjDQNBxOSJDaHVUeqKu5k3OKKhJf0
2JMbZxLWYTc1V5DmCFgjFn+qGqIbfEgB4ghFSWnwdwT+wjVUrl3UKTYseu5OrmUf
gNwXMfd7qir4dHfLbZYN6ztlLdD85fUUWeRKTPw7wXnPvRjW/X9FutU1/FxF6ihU
4mcoKWw0joPV+6GGQCwrxhaL6giozLS4iSpwe6mKI+MyJrpclG7znj5JDqvxUqBK
jHe8kOS0fyOTQrtnQQ7mlaQYMSzGQYz+TKmIuA0jTUDU+BaLEciwFSsZL6feFhbb
F1xTrzSF2etb98r5Dk/OPwhUvk0+xDO/SVUsFEgE51Kd42pLldakR0wodDvdqOfh
2rUib/xunWaOxIWMSwjOFuW6N0yDZNgNci0mo4ZxZJoHhpEH0Qt3MIhbdNDtXD/0
nZFmPQrGbIU9VZdl80O1ut8xtph4tCqwLfI2zfyXIAKzPVFLvu2MLWERQgrdUh1P
rLkEUwUbug97hJQnRzV7q5l436kUV5IPyBsFzaIJcIpGPi8L60I=
=EqMn
-----END PGP SIGNATURE-----
Merge tag 'linux-kselftest-kunit-fixes-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit fixes from Shuah Khan:
"Fixes to the test and usage documentation"
* tag 'linux-kselftest-kunit-fixes-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
Documentation: KUnit: Fix usage bug
kunit: fix missing f in f-string in run_checks.py
Since struct mv88e6xxx_mdio_bus *mdio_bus is the bus->priv of something
allocated with mdiobus_alloc_size(), this means that mdiobus_free(bus)
will free the memory backing the mdio_bus as well. Therefore, the
mdio_bus->list element is freed memory, but we continue to iterate
through the list of MDIO buses using that list element.
To fix this, use the proper list iterator that handles element deletion
by keeping a copy of the list element next pointer.
Fixes: f53a2ce893 ("net: dsa: mv88e6xxx: don't use devres for mdiobus")
Reported-by: Rafael Richter <rafael.richter@gin.de>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220210174017.3271099-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2022-02-10
Dan Carpenter propagates an error in FEC configuration.
Jesse fixes TSO offloads of IPIP and SIT frames.
Dave adds a dedicated LAG unregister function to resolve a KASAN error
and moves auxiliary device re-creation after LAG removal to the service
task to avoid issues with RTNL lock.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
ice: Avoid RTNL lock when re-creating auxiliary device
ice: Fix KASAN error in LAG NETDEV_UNREGISTER handler
ice: fix IPIP and SIT TSO offload
ice: fix an error code in ice_cfg_phy_fec()
====================
Link: https://lore.kernel.org/r/20220210170515.2609656-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
An ongoing workqueue populates the stats buffer. At the same time, a user
might query the statistics. While writing to the buffer is mutex-locked,
reading from the buffer wasn't. This could lead to buggy reads by ethtool.
This patch fixes the former blamed commit, but the bug was introduced in
the latter.
Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Fixes: 1e1caa9735 ("ocelot: Clean up stats update deferred work")
Fixes: a556c76adc ("net: mscc: Add initial Ocelot switch support")
Reported-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/all/20220210150451.416845-2-colin.foster@in-advantage.com/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There are circumstances whem kvm_xen_update_runstate_guest() should not
sleep because it ends up being called from __schedule() when the vCPU
is preempted:
[ 222.830825] kvm_xen_update_runstate_guest+0x24/0x100
[ 222.830878] kvm_arch_vcpu_put+0x14c/0x200
[ 222.830920] kvm_sched_out+0x30/0x40
[ 222.830960] __schedule+0x55c/0x9f0
To handle this, make it use the same trick as __kvm_xen_has_interrupt(),
of using the hva from the gfn_to_hva_cache directly. Then it can use
pagefault_disable() around the accesses and just bail out if the page
is absent (which is unlikely).
I almost switched to using a gfn_to_pfn_cache here and bailing out if
kvm_map_gfn() fails, like kvm_steal_time_set_preempted() does — but on
closer inspection it looks like kvm_map_gfn() will *always* fail in
atomic context for a page in IOMEM, which means it will silently fail
to make the update every single time for such guests, AFAICT. So I
didn't do it that way after all. And will probably fix that one too.
Cc: stable@vger.kernel.org
Fixes: 30b5c851af ("KVM: x86/xen: Add support for vCPU runstate information")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <b17a93e5ff4561e57b1238e3e7ccd0b613eb827e.camel@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
From version 2.38, binutils default to ISA spec version 20191213. This
means that the csr read/write (csrr*/csrw*) instructions and fence.i
instruction has separated from the `I` extension, become two standalone
extensions: Zicsr and Zifencei. As the kernel uses those instruction,
this causes the following build failure:
CC arch/riscv/kernel/vdso/vgettimeofday.o
<<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h: Assembler messages:
<<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h:71: Error: unrecognized opcode `csrr a5,0xc01'
<<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h:71: Error: unrecognized opcode `csrr a5,0xc01'
<<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h:71: Error: unrecognized opcode `csrr a5,0xc01'
<<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h:71: Error: unrecognized opcode `csrr a5,0xc01'
The fix is to specify those extensions explicitely in -march. However as
older binutils version do not support this, we first need to detect
that.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Tested-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
There is numa_add_cpu() when cpus online, accordingly, there should be
numa_remove_cpu() when cpus offline.
Signed-off-by: Pingfan Liu <kernelfans@gmail.com>
Fixes: 4f0e8eef77 ("riscv: Add numa support for riscv64 platform")
Cc: stable@vger.kernel.org
[Palmer: Add missing NUMA include]
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
