Running vdso_test_correctness on powerpc64 gives the following warning:
~ # ./vdso_test_correctness
Warning: failed to find clock_gettime64 in vDSO
This is because vdso_test_correctness was built with VDSO_32BIT defined.
__powerpc__ macro is defined on both powerpc32 and powerpc64 so
__powerpc64__ needs to be checked first in vdso_config.h
Fixes: 693f5ca08c ("kselftest: Extend vDSO selftest")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Following error occurs when running vdso_test_correctness on powerpc:
~ # ./vdso_test_correctness
[WARN] failed to find vDSO
[SKIP] No vDSO, so skipping clock_gettime() tests
[SKIP] No vDSO, so skipping clock_gettime64() tests
[RUN] Testing getcpu...
[OK] CPU 0: syscall: cpu 0, node 0
On powerpc, vDSO is neither called linux-vdso.so.1 nor linux-gate.so.1
but linux-vdso32.so.1 or linux-vdso64.so.1.
Also search those two names before giving up.
Fixes: c7e5789b24 ("kselftest: Move test_vdso to the vDSO test suite")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
If the getrandom test compiles for an arch, don't exit fatally if the
actual cpu it's running on is unsupported.
Suggested-by: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Building test_vdso_getrandom currently leads to following issue:
In file included from /home/xry111/git-repos/linux/tools/include/linux/compiler_types.h:36,
from /home/xry111/git-repos/linux/include/uapi/linux/stddef.h:5,
from /home/xry111/git-repos/linux/include/uapi/linux/posix_types.h:5,
from /usr/include/asm/sigcontext.h:12,
from /usr/include/bits/sigcontext.h:30,
from /usr/include/signal.h:301,
from vdso_test_getrandom.c:14:
/home/xry111/git-repos/linux/tools/include/linux/compiler-gcc.h:3:2: error: #error "Please don't include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead."
3 | #error "Please don't include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead."
| ^~~~~
It's because the compiler_types.h inclusion in
include/uapi/linux/stddef.h is expected to be removed by the
header_install.sh script, as compiler_types.h shouldn't be used from
user space.
Add KHDR_INCLUDES before the existing include/uapi inclusion so that
usr/include takes precedence if it's populated.
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
CONFIG_FUNCTION_ALIGNMENT=0 is no longer necessary and BULID_VDSO wasn't
spelled right while BUILD_VDSO isn't necessary, so just remove these.
Reported-by: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
On systems that set -Wl,--as-needed, putting the -lsodium in the wrong
place on the command line means we get a linker error:
CC vdso_test_chacha
/usr/bin/ld: /tmp/ccKpjnSM.o: in function `main':
vdso_test_chacha.c:(.text+0x276): undefined reference to `crypto_stream_chacha20'
collect2: error: ld returned 1 exit status
Fix this by passing pkg-config's --libs output to the LDFLAGS field
instead of the CFLAGS field, as is customary.
Reported-by: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
When libsodium is installed into its own prefix, the --cflags output is
needed for the compiler to find libsodium headers.
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Don't hard-code x86 specific names. Rather, use vdso_config definitions
to find the correct function matching the architecture.
Add random VDSO function names in names[][]. Remove the #ifdef
CONFIG_VDSO32, as having the name there all the time is harmless and
guaranties a steady index for following strings.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
[Jason: add [6] to variable declaration rather than each usage site.]
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Building test_vdso_chacha currently leads to following issue:
In file included from /home/chleroy/linux-powerpc/include/linux/limits.h:7,
from /opt/powerpc64-e5500--glibc--stable-2024.02-1/powerpc64-buildroot-linux-gnu/sysroot/usr/include/bits/local_lim.h:38,
from /opt/powerpc64-e5500--glibc--stable-2024.02-1/powerpc64-buildroot-linux-gnu/sysroot/usr/include/bits/posix1_lim.h:161,
from /opt/powerpc64-e5500--glibc--stable-2024.02-1/powerpc64-buildroot-linux-gnu/sysroot/usr/include/limits.h:195,
from /opt/powerpc64-e5500--glibc--stable-2024.02-1/lib/gcc/powerpc64-buildroot-linux-gnu/12.3.0/include-fixed/limits.h:203,
from /opt/powerpc64-e5500--glibc--stable-2024.02-1/lib/gcc/powerpc64-buildroot-linux-gnu/12.3.0/include-fixed/syslimits.h:7,
from /opt/powerpc64-e5500--glibc--stable-2024.02-1/lib/gcc/powerpc64-buildroot-linux-gnu/12.3.0/include-fixed/limits.h:34,
from /tmp/sodium/usr/local/include/sodium/export.h:7,
from /tmp/sodium/usr/local/include/sodium/crypto_stream_chacha20.h:14,
from vdso_test_chacha.c:6:
/opt/powerpc64-e5500--glibc--stable-2024.02-1/powerpc64-buildroot-linux-gnu/sysroot/usr/include/bits/xopen_lim.h:99:6: error: missing binary operator before token "("
99 | # if INT_MAX == 32767
| ^~~~~~~
/opt/powerpc64-e5500--glibc--stable-2024.02-1/powerpc64-buildroot-linux-gnu/sysroot/usr/include/bits/xopen_lim.h:102:7: error: missing binary operator before token "("
102 | # if INT_MAX == 2147483647
| ^~~~~~~
/opt/powerpc64-e5500--glibc--stable-2024.02-1/powerpc64-buildroot-linux-gnu/sysroot/usr/include/bits/xopen_lim.h:126:6: error: missing binary operator before token "("
126 | # if LONG_MAX == 2147483647
| ^~~~~~~~
This is due to kernel include/linux/limits.h being included instead of
libc's limits.h.
This is because directory include/ is added through option -isystem so
it goes prior to glibc's include directory.
Replace -isystem by -idirafter.
But this implies that now tools/include/linux/linkage.h is included
instead of include/linux/linkage.h, so define a stub for
SYM_FUNC_START() and SYM_FUNC_END().
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Architectures use different location for vDSO sources:
arch/mips/vdso
arch/sparc/vdso
arch/arm64/kernel/vdso
arch/riscv/kernel/vdso
arch/csky/kernel/vdso
arch/x86/um/vdso
arch/x86/entry/vdso
arch/powerpc/kernel/vdso
arch/arm/vdso
arch/loongarch/vdso
Don't hard-code vdso sources location in selftest Makefile. Instead
create a vdso/ symbolic link in tools/arch/$arch/ and update Makefile
accordingly.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Rather than using pthread_get/set_specific, just use gcc's __thread
annotation, which is noticeably faster and makes the code more obvious.
Also, just have one simplified struct called vgrnd, instead of trying to
split things up semantically. Those divisions were useful when this code
was split across several commit *messages*, but doesn't make as much
sense within a single file. This should make the code more clear and
provide a better example for implementers.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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Merge tag 'random-6.11-rc6-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator fix from Jason Donenfeld:
"Reject invalid flags passed to vgetrandom() in the same way that
getrandom() does, so that the behavior is the same, from Yann.
The flags argument to getrandom() only has a behavioral effect on the
function if the RNG isn't initialized yet, so vgetrandom() falls back
to the syscall in that case. But if the RNG is initialized, all of the
flags behave the same way, so vgetrandom() didn't bother checking
them, and just ignored them entirely.
But that doesn't account for invalid flags passed in, which need to be
rejected so we can use them later"
* tag 'random-6.11-rc6-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
random: vDSO: reject unknown getrandom() flags
Changes:
- platform/x86/amd/pmc: AMD 1Ah model 60h series support (2nd attempt).
- asus-wmi: Prevent spurious rfkill on Asus Zenbook Duo.
- x86-android-tablets: Relax DMI match to cover another model.
The following is an automated shortlog grouped by driver:
amd/pmc:
- Extend support for PMC features on new AMD platform
- Fix SMU command submission path on new AMD platform
asus-wmi:
- Fix spurious rfkill on UX8406MA
x86-android-tablets:
- Make Lenovo Yoga Tab 3 X90F DMI match less strict
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Merge tag 'platform-drivers-x86-v6.11-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform drivers fixes from Ilpo Järvinen:
- platform/x86/amd/pmc: AMD 1Ah model 60h series support (2nd attempt)
- asus-wmi: Prevent spurious rfkill on Asus Zenbook Duo
- x86-android-tablets: Relax DMI match to cover another model
* tag 'platform-drivers-x86-v6.11-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: x86-android-tablets: Make Lenovo Yoga Tab 3 X90F DMI match less strict
platform/x86: asus-wmi: Fix spurious rfkill on UX8406MA
platform/x86/amd/pmc: Extend support for PMC features on new AMD platform
platform/x86/amd/pmc: Fix SMU command submission path on new AMD platform
- Fix a number of crashers
- Update email address for an NFSD reviewer
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Merge tag 'nfsd-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
- Fix a number of crashers
- Update email address for an NFSD reviewer
* tag 'nfsd-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
fs/nfsd: fix update of inode attrs in CB_GETATTR
nfsd: fix potential UAF in nfsd4_cb_getattr_release
nfsd: hold reference to delegation when updating it for cb_getattr
MAINTAINERS: Update Olga Kornievskaia's email address
nfsd: prevent panic for nfsv4.0 closed files in nfs4_show_open
nfsd: ensure that nfsd4_fattr_args.context is zeroed out
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Merge tag 'for-6.11-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- fix use-after-free when submitting bios for read, after an error and
partially submitted bio the original one is freed while it can be
still be accessed again
- fix fstests case btrfs/301, with enabled quotas wait for delayed
iputs when flushing delalloc
- fix periodic block group reclaim, an unitialized value can be
returned if there are no block groups to reclaim
- fix build warning (-Wmaybe-uninitialized)
* tag 'for-6.11-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix uninitialized return value from btrfs_reclaim_sweep()
btrfs: fix a use-after-free when hitting errors inside btrfs_submit_chunk()
btrfs: initialize last_extent_end to fix -Wmaybe-uninitialized warning in extent_fiemap()
btrfs: run delayed iputs when flushing delalloc
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Merge tag 'v6.11-rc5-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- two RDMA/smbdirect fixes and a minor cleanup
- punch hole fix
* tag 'v6.11-rc5-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Fix FALLOC_FL_PUNCH_HOLE support
smb/client: fix rdma usage in smb2_async_writev()
smb/client: remove unused rq_iter_size from struct smb_rqst
smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req()
Contains a bug fix for tpm_ibmvtpm driver so that it will take the bus
encryption into use.
BR, Jarkko
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Merge tag 'tpmdd-next-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull TPM fix from Jarkko Sakkinen:
"A bug fix for tpm_ibmvtpm driver so that it will take the bus
encryption into use"
* tag 'tpmdd-next-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
tpm: ibmvtpm: Call tpm2_sessions_init() to initialize session support
- Fix the hwirq map and pin offsets in the Qualcomm X1E80100 driver.
- Fix the pin range handling in the AT91 driver so it works again.
- Fix a NULL-dereference risk in pinctrl single.
- Fix a serious biasing bug in the Mediatek driver.
- Fix the level trigged IRQ in the StarFive JH7110.
- Fix the iomux width in the Rockchip GPIO2-B pin handling.
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Merge tag 'pinctrl-v6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- Fix the hwirq map and pin offsets in the Qualcomm X1E80100 driver
- Fix the pin range handling in the AT91 driver so it works again
- Fix a NULL-dereference risk in pinctrl single
- Fix a serious biasing bug in the Mediatek driver
- Fix the level trigged IRQ in the StarFive JH7110
- Fix the iomux width in the Rockchip GPIO2-B pin handling
* tag 'pinctrl-v6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: rockchip: correct RK3328 iomux width flag for GPIO2-B pins
pinctrl: starfive: jh7110: Correct the level trigger configuration of iev register
pinctrl: qcom: x1e80100: Fix special pin offsets
pinctrl: mediatek: common-v2: Fix broken bias-disable for PULL_PU_PD_RSEL_TYPE
pinctrl: single: fix potential NULL dereference in pcs_get_function()
pinctrl: at91: make it work with current gpiolib
pinctrl: qcom: x1e80100: Update PDC hwirq map
It became a bit larger collection of fixes than wished at this time,
but all changes are small and mostly device-specific fixes that
should be fairly safe to apply. Majority of fixes are about ASoC
for AMD SOF, Cirrus codecs, lpass, etc, in addition to the usual
HD-audio quirks / fixes.
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Merge tag 'sound-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"It became a bit larger collection of fixes than wished at this time,
but all changes are small and mostly device-specific fixes that should
be fairly safe to apply.
Majority of fixes are about ASoC for AMD SOF, Cirrus codecs, lpass,
etc, in addition to the usual HD-audio quirks / fixes"
* tag 'sound-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (22 commits)
ALSA: hda: hda_component: Fix mutex crash if nothing ever binds
ALSA: hda/realtek: support HP Pavilion Aero 13-bg0xxx Mute LED
ALSA: hda/realtek: Fix the speaker output on Samsung Galaxy Book3 Ultra
ASoC: cs-amp-lib: Ignore empty UEFI calibration entries
ASoC: cs-amp-lib-test: Force test calibration blob entries to be valid
ALSA: hda/realtek - FIxed ALC285 headphone no sound
ALSA: hda/realtek - Fixed ALC256 headphone no sound
ASoC: allow module autoloading for table board_ids
ASoC: allow module autoloading for table db1200_pids
ALSA: hda: cs35l56: Don't use the device index as a calibration index
ALSA: seq: Skip event type filtering for UMP events
ALSA: hda/realtek: Enable mute/micmute LEDs on HP Laptop 14-ey0xxx
ASoC: SOF: amd: Fix for acp init sequence
ASoC: amd: acp: fix module autoloading
ASoC: mediatek: mt8188: Mark AFE_DAC_CON0 register as volatile
ASoC: codecs: wcd937x: Fix missing de-assert of reset GPIO
ASoC: SOF: mediatek: Add missing board compatible
ASoC: MAINTAINERS: Drop Banajit Goswami from Qualcomm sound drivers
ASoC: SOF: amd: Fix for incorrect acp error register offsets
ASoC: SOF: amd: move iram-dram fence register programming sequence
...
Commit d2add27cf2 ("tpm: Add NULL primary creation") introduced
CONFIG_TCG_TPM2_HMAC. When this option is enabled on ppc64 then the
following message appears in the kernel log due to a missing call to
tpm2_sessions_init().
[ 2.654549] tpm tpm0: auth session is not active
Add the missing call to tpm2_session_init() to the ibmvtpm driver to
resolve this issue.
Cc: stable@vger.kernel.org # v6.10+
Fixes: d2add27cf2 ("tpm: Add NULL primary creation")
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
The return variable 'ret' at btrfs_reclaim_sweep() is never assigned if
none of the space infos is reclaimable (for example if periodic reclaim
is disabled, which is the default), so we return an undefined value.
This can be fixed my making btrfs_reclaim_sweep() not return any value
as well as do_reclaim_sweep() because:
1) do_reclaim_sweep() always returns 0, so we can make it return void;
2) The only caller of btrfs_reclaim_sweep() (btrfs_reclaim_bgs()) doesn't
care about its return value, and in its context there's nothing to do
about any errors anyway.
Therefore remove the return value from btrfs_reclaim_sweep() and
do_reclaim_sweep().
Fixes: e4ca3932ae ("btrfs: periodic block_group reclaim")
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Merge tag 'vfs-6.11-rc6.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
"VFS:
- Ensure that backing files uses file->f_ops->splice_write() for
splice
netfs:
- Revert the removal of PG_private_2 from netfs_release_folio() as
cephfs still relies on this
- When AS_RELEASE_ALWAYS is set on a mapping the folio needs to
always be invalidated during truncation
- Fix losing untruncated data in a folio by making letting
netfs_release_folio() return false if the folio is dirty
- Fix trimming of streaming-write folios in netfs_inval_folio()
- Reset iterator before retrying a short read
- Fix interaction of streaming writes with zero-point tracker
afs:
- During truncation afs currently calls truncate_setsize() which sets
i_size, expands the pagecache and truncates it. The first two
operations aren't needed because they will have already been done.
So call truncate_pagecache() instead and skip the redundant parts
overlayfs:
- Fix checking of the number of allowed lower layers so 500 layers
can actually be used instead of just 499
- Add missing '\n' to pr_err() output
- Pass string to ovl_parse_layer() and thus allow it to be used for
Opt_lowerdir as well
pidfd:
- Revert blocking the creation of pidfds for kthread as apparently
userspace relies on this. Specifically, it breaks systemd during
shutdown
romfs:
- Fix romfs_read_folio() to use the correct offset with
folio_zero_tail()"
* tag 'vfs-6.11-rc6.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs:
netfs: Fix interaction of streaming writes with zero-point tracker
netfs: Fix missing iterator reset on retry of short read
netfs: Fix trimming of streaming-write folios in netfs_inval_folio()
netfs: Fix netfs_release_folio() to say no if folio dirty
afs: Fix post-setattr file edit to do truncation correctly
mm: Fix missing folio invalidation calls during truncation
ovl: ovl_parse_param_lowerdir: Add missed '\n' for pr_err
ovl: fix wrong lowerdir number check for parameter Opt_lowerdir
ovl: pass string to ovl_parse_layer()
backing-file: convert to using fops->splice_write
Revert "pidfd: prevent creation of pidfds for kthreads"
romfs: fix romfs_read_folio()
netfs, ceph: Partially revert "netfs: Replace PG_fscache by setting folio->private and marking dirty"
[BUG]
There is an internal report that KASAN is reporting use-after-free, with
the following backtrace:
BUG: KASAN: slab-use-after-free in btrfs_check_read_bio+0xa68/0xb70 [btrfs]
Read of size 4 at addr ffff8881117cec28 by task kworker/u16:2/45
CPU: 1 UID: 0 PID: 45 Comm: kworker/u16:2 Not tainted 6.11.0-rc2-next-20240805-default+ #76
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014
Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]
Call Trace:
dump_stack_lvl+0x61/0x80
print_address_description.constprop.0+0x5e/0x2f0
print_report+0x118/0x216
kasan_report+0x11d/0x1f0
btrfs_check_read_bio+0xa68/0xb70 [btrfs]
process_one_work+0xce0/0x12a0
worker_thread+0x717/0x1250
kthread+0x2e3/0x3c0
ret_from_fork+0x2d/0x70
ret_from_fork_asm+0x11/0x20
Allocated by task 20917:
kasan_save_stack+0x37/0x60
kasan_save_track+0x10/0x30
__kasan_slab_alloc+0x7d/0x80
kmem_cache_alloc_noprof+0x16e/0x3e0
mempool_alloc_noprof+0x12e/0x310
bio_alloc_bioset+0x3f0/0x7a0
btrfs_bio_alloc+0x2e/0x50 [btrfs]
submit_extent_page+0x4d1/0xdb0 [btrfs]
btrfs_do_readpage+0x8b4/0x12a0 [btrfs]
btrfs_readahead+0x29a/0x430 [btrfs]
read_pages+0x1a7/0xc60
page_cache_ra_unbounded+0x2ad/0x560
filemap_get_pages+0x629/0xa20
filemap_read+0x335/0xbf0
vfs_read+0x790/0xcb0
ksys_read+0xfd/0x1d0
do_syscall_64+0x6d/0x140
entry_SYSCALL_64_after_hwframe+0x4b/0x53
Freed by task 20917:
kasan_save_stack+0x37/0x60
kasan_save_track+0x10/0x30
kasan_save_free_info+0x37/0x50
__kasan_slab_free+0x4b/0x60
kmem_cache_free+0x214/0x5d0
bio_free+0xed/0x180
end_bbio_data_read+0x1cc/0x580 [btrfs]
btrfs_submit_chunk+0x98d/0x1880 [btrfs]
btrfs_submit_bio+0x33/0x70 [btrfs]
submit_one_bio+0xd4/0x130 [btrfs]
submit_extent_page+0x3ea/0xdb0 [btrfs]
btrfs_do_readpage+0x8b4/0x12a0 [btrfs]
btrfs_readahead+0x29a/0x430 [btrfs]
read_pages+0x1a7/0xc60
page_cache_ra_unbounded+0x2ad/0x560
filemap_get_pages+0x629/0xa20
filemap_read+0x335/0xbf0
vfs_read+0x790/0xcb0
ksys_read+0xfd/0x1d0
do_syscall_64+0x6d/0x140
entry_SYSCALL_64_after_hwframe+0x4b/0x53
[CAUSE]
Although I cannot reproduce the error, the report itself is good enough
to pin down the cause.
The call trace is the regular endio workqueue context, but the
free-by-task trace is showing that during btrfs_submit_chunk() we
already hit a critical error, and is calling btrfs_bio_end_io() to error
out. And the original endio function called bio_put() to free the whole
bio.
This means a double freeing thus causing use-after-free, e.g.:
1. Enter btrfs_submit_bio() with a read bio
The read bio length is 128K, crossing two 64K stripes.
2. The first run of btrfs_submit_chunk()
2.1 Call btrfs_map_block(), which returns 64K
2.2 Call btrfs_split_bio()
Now there are two bios, one referring to the first 64K, the other
referring to the second 64K.
2.3 The first half is submitted.
3. The second run of btrfs_submit_chunk()
3.1 Call btrfs_map_block(), which by somehow failed
Now we call btrfs_bio_end_io() to handle the error
3.2 btrfs_bio_end_io() calls the original endio function
Which is end_bbio_data_read(), and it calls bio_put() for the
original bio.
Now the original bio is freed.
4. The submitted first 64K bio finished
Now we call into btrfs_check_read_bio() and tries to advance the bio
iter.
But since the original bio (thus its iter) is already freed, we
trigger the above use-after free.
And even if the memory is not poisoned/corrupted, we will later call
the original endio function, causing a double freeing.
[FIX]
Instead of calling btrfs_bio_end_io(), call btrfs_orig_bbio_end_io(),
which has the extra check on split bios and do the proper refcounting
for cloned bios.
Furthermore there is already one extra btrfs_cleanup_bio() call, but
that is duplicated to btrfs_orig_bbio_end_io() call, so remove that
label completely.
Reported-by: David Sterba <dsterba@suse.com>
Fixes: 852eee62d3 ("btrfs: allow btrfs_submit_bio to split bios")
CC: stable@vger.kernel.org # 6.6+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Currently, we copy the mtime and ctime to the in-core inode and then
mark the inode dirty. This is fine for certain types of filesystems, but
not all. Some require a real setattr to properly change these values
(e.g. ceph or reexported NFS).
Fix this code to call notify_change() instead, which is the proper way
to effect a setattr. There is one problem though:
In this case, the client is holding a write delegation and has sent us
attributes to update our cache. We don't want to break the delegation
for this since that would defeat the purpose. Add a new ATTR_DELEG flag
that makes notify_change bypass the try_break_deleg call.
Fixes: c5967721e1 ("NFSD: handle GETATTR conflict with write delegation")
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Once we drop the delegation reference, the fields embedded in it are no
longer safe to access. Do that last.
Fixes: c5967721e1 ("NFSD: handle GETATTR conflict with write delegation")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Once we've dropped the flc_lock, there is nothing that ensures that the
delegation that was found will still be around later. Take a reference
to it while holding the lock and then drop it when we've finished with
the delegation.
Fixes: c5967721e1 ("NFSD: handle GETATTR conflict with write delegation")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
If ParaVirt steal time feature is enabled, there is a percpu gpa address
passed from guest vCPU and host modifies guest memory space with this gpa
address. When vCPU is reset normally, it will notify host and invalidate
gpa address.
However if VM is crashed and VMM reboots VM forcely, the vCPU reboot
notification callback will not be called in VM. Host needs invalidate
the gpa address, else host will modify guest memory during VM reboots.
Here it is invalidated from the vCPU KVM_REG_LOONGARCH_VCPU_RESET ioctl
interface.
Also funciton kvm_reset_timer() is removed at vCPU reset stage, since SW
emulated timer is only used in vCPU block state. When a vCPU is removed
from the block waiting queue, kvm_restore_timer() is called and SW timer
is cancelled. And the timer register is also cleared at VMM when a vCPU
is reset.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
There exist some warnings when building kernel if CONFIG_CPU_HAS_LBT is
set but CONFIG_CPU_HAS_LSX and CONFIG_CPU_HAS_LASX are not set. In this
case, there are no definitions of _restore_lsx & _restore_lasx and there
are also no definitions of kvm_restore_lsx & kvm_restore_lasx in fpu.S
and switch.S respectively, just add some ifdefs to fix these warnings.
AS arch/loongarch/kernel/fpu.o
arch/loongarch/kernel/fpu.o: warning: objtool: unexpected relocation symbol type in .rela.discard.func_stack_frame_non_standard: 0
arch/loongarch/kernel/fpu.o: warning: objtool: unexpected relocation symbol type in .rela.discard.func_stack_frame_non_standard: 0
AS [M] arch/loongarch/kvm/switch.o
arch/loongarch/kvm/switch.o: warning: objtool: unexpected relocation symbol type in .rela.discard.func_stack_frame_non_standard: 0
arch/loongarch/kvm/switch.o: warning: objtool: unexpected relocation symbol type in .rela.discard.func_stack_frame_non_standard: 0
MODPOST Module.symvers
ERROR: modpost: "kvm_restore_lsx" [arch/loongarch/kvm/kvm.ko] undefined!
ERROR: modpost: "kvm_restore_lasx" [arch/loongarch/kvm/kvm.ko] undefined!
Cc: stable@vger.kernel.org # 6.9+
Fixes: cb8a2ef084 ("LoongArch: Add ORC stack unwinder support")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202408120955.qls5oNQY-lkp@intel.com/
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Currently we call irq_set_noprobe() in a loop for all IRQs, but indeed
it only works for IRQs below NR_IRQS_LEGACY because at init_IRQ() only
legacy interrupts have been allocated.
Instead, we can define ARCH_IRQ_INIT_FLAGS as IRQ_NOPROBE in asm/hwirq.h
and the core will automatically set the flag for all interrupts.
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Tianyang Zhang <zhangtianyang@loongson.cn>
There's a warning (probably on some older compiler version):
fs/btrfs/fiemap.c: warning: 'last_extent_end' may be used uninitialized in this function [-Wmaybe-uninitialized]: => 822:19
Initialize the variable to 0 although it's not necessary as it's either
properly set or not used after an error. The called function is in the
same file so this is a false alert but we want to fix all
-Wmaybe-uninitialized reports.
Link: https://lore.kernel.org/all/20240819070639.2558629-1-geert@linux-m68k.org/
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David Sterba <dsterba@suse.com>
On some machines with a large number of CPUs there is a sizable delay
between an atomic replace occurring and when sysfs updates accordingly.
This fix uses 'loop_until' to wait for the atomic replace to unload all
previous livepatches.
Reported-by: CKI Project <cki-project@redhat.com>
Closes: https://datawarehouse.cki-project.org/kcidb/tests/redhat:1413102084-x86_64-kernel_upt_28
Signed-off-by: Ryan Sullivan <rysulliv@redhat.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Link: https://lore.kernel.org/r/20240822173122.14760-1-rysulliv@redhat.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
There are 2G and 4G RAM versions of the Lenovo Yoga Tab 3 X90F and it
turns out that the 2G version has a DMI product name of
"CHERRYVIEW D1 PLATFORM" where as the 4G version has
"CHERRYVIEW C0 PLATFORM". The sys-vendor + product-version check are
unique enough that the product-name check is not necessary.
Drop the product-name check so that the existing DMI match for the 4G
RAM version also matches the 2G RAM version.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240825132415.8307-1-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
The Asus Zenbook Duo (UX8406MA) has a keyboard which can be
placed on the laptop to connect it via USB, or can be removed from the
laptop to reveal a hidden secondary display in which case the keyboard
operates via Bluetooth.
When it is placed on the secondary display to connect via USB, it emits
a keypress for a wireless disable. This causes the rfkill system to be
activated disconnecting the current wifi connection, which doesn't
reflect the user's true intention.
Detect this hardware and suppress any wireless switches from the
keyboard; this keyboard does not have a wireless toggle capability so
these presses are always spurious.
Signed-off-by: Mathieu Fenniak <mathieu@fenniak.net>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240823135630.128447-1-mathieu@fenniak.net
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Move the initialization of parent->mutex into
hda_component_manager_init() so that it is always valid.
In hda_component_manager_bind() do not clear the parent information.
Only zero-fill the per-component data ready for it to be filled in
by the components as they bind.
Previously parent->mutex was being initialized only in
hda_component_manager_bind(). This meant that it was only
initialized if all components appeared and there was a bind callback.
If there wasn't a bind the mutex object was not valid when the
Realtek driver called any of the other functions.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 047b9cbbaa ("ALSA: hda: hda_component: Protect shared data with a mutex")
Link: https://patch.msgid.link/20240826094940.45563-1-rf@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch adds the HP Pavilion Aero 13 (13-bg0xxx) (year 2024) to list of
quirks for keyboard LED mute indication.
The laptop has two LEDs (one for speaker and one for mic mute). The
pre-existing quirk ALC245_FIXUP_HP_X360_MUTE_LEDS chains both the quirk for
mic and speaker mute.
Tested on 6.11.0-rc4 with the aforementioned laptop.
Signed-off-by: Hendrik Borghorst <hendrikborghorst@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20240825174351.5687-1-hendrikborghorst@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Like the getrandom() syscall, vDSO getrandom() must also reject unknown
flags. [1]
It would be possible to return -EINVAL from vDSO itself, but in the
possible case that a new flag is added to getrandom() syscall in the
future, it would be easier to get the behavior from the syscall, instead
of erroring until the vDSO is extended to support the new flag or
explicitly falling back.
[1] Designing the API: Planning for Extension
https://docs.kernel.org/process/adding-syscalls.html#designing-the-api-planning-for-extension
Signed-off-by: Yann Droneaud <yann@droneaud.fr>
[Jason: reworded commit message]
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
We have transient failures with btrfs/301, specifically in the part
where we do
for i in $(seq 0 10); do
write 50m to file
rm -f file
done
Sometimes this will result in a transient quota error, and it's because
sometimes we start writeback on the file which results in a delayed
iput, and thus the rm doesn't actually clean the file up. When we're
flushing the quota space we need to run the delayed iputs to make sure
all the unlinks that we think have completed have actually completed.
This removes the small window where we could fail to find enough space
in our quota.
CC: stable@vger.kernel.org # 5.15+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
144d:c1cc requires the same workaround to enable the speaker amp
as other Samsung models with the ALC298 codec.
Signed-off-by: YOUNGJIN JOO <neoelec@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20240825092515.28728-1-neoelec@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
dma-direct.h is introduced in commit d4b6f1562a ("LoongArch: Add
Non-Uniform Memory Access (NUMA) support"). In commit c78c43fe7d
("LoongArch: Use acpi_arch_dma_setup() and remove ARCH_HAS_PHYS_TO_DMA"),
ARCH_HAS_PHYS_TO_DMA was deselected and the coresponding phys_to_dma()/
dma_to_phys() functions were removed. However, the unused dma-direct.h
was left behind, which is removed by this patch.
Cc: <stable@vger.kernel.org>
Fixes: c78c43fe7d ("LoongArch: Use acpi_arch_dma_setup() and remove ARCH_HAS_PHYS_TO_DMA")
Signed-off-by: Miao Wang <shankerwangmiao@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
The cifs filesystem doesn't quite emulate FALLOC_FL_PUNCH_HOLE correctly
(note that due to lack of protocol support, it can't actually implement it
directly). Whilst it will (partially) invalidate dirty folios in the
pagecache, it doesn't write them back first, and so the EOF marker on the
server may be lower than inode->i_size.
This presents a problem, however, as if the punched hole invalidates the
tail of the locally cached dirty data, writeback won't know it needs to
move the EOF over to account for the hole punch (which isn't supposed to
move the EOF). We could just write zeroes over the punched out region of
the pagecache and write that back - but this is supposed to be a
deallocatory operation.
Fix this by manually moving the EOF over on the server after the operation
if the hole punched would corrupt it.
Note that the FSCTL_SET_ZERO_DATA RPC and the setting of the EOF should
probably be compounded to stop a third party interfering (or, at least,
massively reduce the chance).
This was reproducible occasionally by using fsx with the following script:
truncate 0x0 0x375e2 0x0
punch_hole 0x2f6d3 0x6ab5 0x375e2
truncate 0x0 0x3a71f 0x375e2
mapread 0xee05 0xcf12 0x3a71f
write 0x2078e 0x5604 0x3a71f
write 0x3ebdf 0x1421 0x3a71f *
punch_hole 0x379d0 0x8630 0x40000 *
mapread 0x2aaa2 0x85b 0x40000
fallocate 0x1b401 0x9ada 0x40000
read 0x15f2 0x7d32 0x40000
read 0x32f37 0x7a3b 0x40000 *
The second "write" should extend the EOF to 0x40000, and the "punch_hole"
should operate inside of that - but that depends on whether the VM gets in
and writes back the data first. If it doesn't, the file ends up 0x3a71f in
size, not 0x40000.
Fixes: 31742c5a33 ("enable fallocate punch hole ("fallocate -p") for SMB3")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.com>
cc: Shyam Prasad N <nspmangalore@gmail.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-cifs@vger.kernel.org
cc: netfs@lists.linux.dev
Signed-off-by: Steve French <stfrench@microsoft.com>
rqst.rq_iter needs to be truncated otherwise we'll
also send the bytes into the stream socket...
This is the logic behind rqst.rq_npages = 0, which was removed in
"cifs: Change the I/O paths to use an iterator rather than a page list"
(d08089f649).
Cc: stable@vger.kernel.org
Fixes: d08089f649 ("cifs: Change the I/O paths to use an iterator rather than a page list")
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Fixes: d08089f649 ("cifs: Change the I/O paths to use an iterator rather than a page list")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This happens when called from SMB2_read() while using rdma
and reaching the rdma_readwrite_threshold.
Cc: stable@vger.kernel.org
Fixes: a6559cc1d3 ("cifs: split out smb3_use_rdma_offload() helper")
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
- rhashtable conversion for vfs inodes
- rcu_pending, btree key cache conversion
+ nocow deadlock fix
+ fix for new rebalance_work accounting
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Merge tag 'bcachefs-2024-08-24' of git://evilpiepirate.org/bcachefs
Pull bcachefs fixes from Kent Overstreet:
- assorted syzbot fixes
- some upgrade fixes for old (pre 1.0) filesystems
- fix for moving data off a device that was switched to durability=0
after data had been written to it.
- nocow deadlock fix
- fix for new rebalance_work accounting
* tag 'bcachefs-2024-08-24' of git://evilpiepirate.org/bcachefs: (28 commits)
bcachefs: Fix rebalance_work accounting
bcachefs: Fix failure to flush moves before sleeping in copygc
bcachefs: don't use rht_bucket() in btree_key_cache_scan()
bcachefs: add missing inode_walker_exit()
bcachefs: clear path->should_be_locked in bch2_btree_key_cache_drop()
bcachefs: Fix double assignment in check_dirent_to_subvol()
bcachefs: Fix refcounting in discard path
bcachefs: Fix compat issue with old alloc_v4 keys
bcachefs: Fix warning in bch2_fs_journal_stop()
fs/super.c: improve get_tree() error message
bcachefs: Fix missing validation in bch2_sb_journal_v2_validate()
bcachefs: Fix replay_now_at() assert
bcachefs: Fix locking in bch2_ioc_setlabel()
bcachefs: fix failure to relock in btree_node_fill()
bcachefs: fix failure to relock in bch2_btree_node_mem_alloc()
bcachefs: unlock_long() before resort in journal replay
bcachefs: fix missing bch2_err_str()
bcachefs: fix time_stats_to_text()
bcachefs: Fix bch2_bucket_gens_init()
bcachefs: Fix bch2_trigger_alloc assert
...
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Merge tag '6.11-rc5-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
- query directory flex array fix
- fix potential null ptr reference in open
- fix error message in some open cases
- two minor cleanups
* tag '6.11-rc5-server-fixes' of git://git.samba.org/ksmbd:
smb/server: update misguided comment of smb2_allocate_rsp_buf()
smb/server: remove useless assignment of 'file_present' in smb2_open()
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
smb/server: fix return value of smb2_open()
ksmbd: the buffer of smb2 query dir response has at least 1 byte
- Fix KASLR base offset to account for symbol offsets in the vmlinux
ELF file, preventing tool breakages like the drgn debugger
- Fix potential memory corruption of physmem_info during kernel physical
address randomization
- Fix potential memory corruption due to overlap between the relocated
lowcore and identity mapping by correctly reserving lowcore memory
- Fix performance regression and avoid randomizing identity mapping base
by default
- Fix unnecessary delay of AP bus binding complete uevent to prevent
startup lag in KVM guests using AP
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Merge tag 's390-6.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix KASLR base offset to account for symbol offsets in the vmlinux
ELF file, preventing tool breakages like the drgn debugger
- Fix potential memory corruption of physmem_info during kernel
physical address randomization
- Fix potential memory corruption due to overlap between the relocated
lowcore and identity mapping by correctly reserving lowcore memory
- Fix performance regression and avoid randomizing identity mapping
base by default
- Fix unnecessary delay of AP bus binding complete uevent to prevent
startup lag in KVM guests using AP
* tag 's390-6.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/boot: Fix KASLR base offset off by __START_KERNEL bytes
s390/boot: Avoid possible physmem_info segment corruption
s390/ap: Refine AP bus bindings complete processing
s390/mm: Pin identity mapping base to zero
s390/mm: Prevent lowcore vs identity mapping overlap
