* [syzbot] [bcachefs?] KMSAN: uninit-value in LZ4_decompress_safe_partial
@ 2024-12-03 18:30 syzbot
0 siblings, 0 replies; 2+ messages in thread
From: syzbot @ 2024-12-03 18:30 UTC (permalink / raw)
To: kent.overstreet, linux-bcachefs, linux-kernel, syzkaller-bugs
Hello,
syzbot found the following issue on:
HEAD commit: 509f806f7f70 Merge tag 's390-6.13-2' of git://git.kernel.o..
git tree: upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=17f3b9e8580000
kernel config: https://syzkaller.appspot.com/x/.config?x=d66c9f9a88c492bd
dashboard link: https://syzkaller.appspot.com/bug?extid=3c88ea590c13f5f92152
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14da1f78580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=100bb9e8580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/e3bcf9103a9e/disk-509f806f.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/a595be33a5b0/vmlinux-509f806f.xz
kernel image: https://storage.googleapis.com/syzbot-assets/3488b782ca32/bzImage-509f806f.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/7a0522f2b5b7/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3c88ea590c13f5f92152@syzkaller.appspotmail.com
=====================================================
BUG: KMSAN: uninit-value in LZ4_decompress_generic lib/lz4/lz4_decompress.c:148 [inline]
BUG: KMSAN: uninit-value in LZ4_decompress_safe_partial+0x825/0x1e50 lib/lz4/lz4_decompress.c:473
LZ4_decompress_generic lib/lz4/lz4_decompress.c:148 [inline]
LZ4_decompress_safe_partial+0x825/0x1e50 lib/lz4/lz4_decompress.c:473
__bio_uncompress+0x503/0xa30 fs/bcachefs/compress.c:166
bch2_bio_uncompress+0x4d9/0x800 fs/bcachefs/compress.c:283
__bch2_read_endio+0x1b17/0x3070 fs/bcachefs/io_read.c:617
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xae0/0x1c40 kernel/workqueue.c:3310
worker_thread+0xea7/0x14f0 kernel/workqueue.c:3391
kthread+0x3e2/0x540 kernel/kthread.c:389
ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Uninit was created at:
__alloc_pages_noprof+0x9a7/0xe00 mm/page_alloc.c:4774
alloc_pages_mpol_noprof+0x299/0x990 mm/mempolicy.c:2265
alloc_pages_noprof+0x1bf/0x1e0 mm/mempolicy.c:2344
__bio_alloc_page_pool fs/bcachefs/io_write.c:113 [inline]
bch2_bio_alloc_pages_pool+0xc2/0x2d0 fs/bcachefs/io_write.c:134
__bch2_read_extent+0x33b8/0x6a50 fs/bcachefs/io_read.c:988
bch2_read_extent fs/bcachefs/io_read.h:120 [inline]
bchfs_read+0x2f5e/0x3660 fs/bcachefs/fs-io-buffered.c:217
bch2_readahead+0x14a8/0x1970 fs/bcachefs/fs-io-buffered.c:277
read_pages+0x193/0x1110 mm/readahead.c:160
page_cache_ra_order+0xdbb/0x1290 mm/readahead.c:513
page_cache_sync_ra+0xed1/0x11a0 mm/readahead.c:613
page_cache_sync_readahead include/linux/pagemap.h:1397 [inline]
filemap_get_pages+0x5a8/0x3860 mm/filemap.c:2546
filemap_read+0x613/0x1560 mm/filemap.c:2646
bch2_read_iter+0x1a90/0x2010 fs/bcachefs/fs-io-direct.c:208
__kernel_read+0x726/0xd30 fs/read_write.c:523
integrity_kernel_read+0x77/0x90 security/integrity/iint.c:28
ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:480 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
ima_calc_file_hash+0x1731/0x3c90 security/integrity/ima/ima_crypto.c:568
ima_collect_measurement+0x464/0xd20 security/integrity/ima/ima_api.c:293
process_measurement+0x294a/0x3f30 security/integrity/ima/ima_main.c:372
ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:572
security_file_post_open+0xc6/0x540 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x58cc/0x6200 fs/namei.c:3987
do_filp_open+0x268/0x600 fs/namei.c:4014
do_sys_openat2+0x1bf/0x2f0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x2a1/0x310 fs/open.c:1428
x64_sys_call+0x36f5/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:258
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
CPU: 1 UID: 0 PID: 4883 Comm: kworker/u8:24 Not tainted 6.12.0-syzkaller-10740-g509f806f7f70 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound __bch2_read_endio
=====================================================
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
If you want to overwrite report's subsystems, reply with:
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If the report is a duplicate of another one, reply with:
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If you want to undo deduplication, reply with:
#syz undup
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [syzbot] [bcachefs?] KMSAN: uninit-value in LZ4_decompress_safe_partial
[not found] <Z14pz0DuFTwSr-Ia@qasdev.system>
@ 2024-12-15 1:25 ` syzbot
0 siblings, 0 replies; 2+ messages in thread
From: syzbot @ 2024-12-15 1:25 UTC (permalink / raw)
To: linux-kernel, qasdev00, syzkaller-bugs
Hello,
syzbot has tested the proposed patch but the reproducer is still triggering an issue:
KMSAN: uninit-value in ima_add_template_entry
bcachefs (loop0): stripes_read... done
bcachefs (loop0): snapshots_read... done
bcachefs (loop0): check_allocations... done
bcachefs (loop0): going read-write
bcachefs (loop0): done starting filesystem
=====================================================
BUG: KMSAN: uninit-value in ima_add_template_entry+0x52b/0x880 security/integrity/ima/ima_queue.c:172
ima_add_template_entry+0x52b/0x880 security/integrity/ima/ima_queue.c:172
ima_store_template security/integrity/ima/ima_api.c:122 [inline]
ima_store_measurement+0x36b/0x8d0 security/integrity/ima/ima_api.c:383
process_measurement+0x2c13/0x3f30 security/integrity/ima/ima_main.c:380
ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:572
security_file_post_open+0xc6/0x540 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x58cc/0x6200 fs/namei.c:3987
do_filp_open+0x268/0x600 fs/namei.c:4014
do_sys_openat2+0x1bf/0x2f0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x2a1/0x310 fs/open.c:1428
x64_sys_call+0x36f5/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:258
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
<Zero or more stacks not recorded to save memory>
Uninit was stored to memory at:
sha256_transform lib/crypto/sha256.c:117 [inline]
sha256_transform_blocks+0x2dbf/0x2e90 lib/crypto/sha256.c:127
lib_sha256_base_do_update include/crypto/sha256_base.h:63 [inline]
sha256_update+0x2ff/0x340 lib/crypto/sha256.c:136
crypto_sha256_update+0x37/0x60 crypto/sha256_generic.c:39
crypto_shash_update+0x79/0xa0 crypto/shash.c:52
ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:491 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
ima_calc_file_hash+0x1804/0x3c90 security/integrity/ima/ima_crypto.c:568
ima_collect_measurement+0x464/0xd20 security/integrity/ima/ima_api.c:293
process_measurement+0x294a/0x3f30 security/integrity/ima/ima_main.c:372
ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:572
security_file_post_open+0xc6/0x540 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x58cc/0x6200 fs/namei.c:3987
do_filp_open+0x268/0x600 fs/namei.c:4014
do_sys_openat2+0x1bf/0x2f0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x2a1/0x310 fs/open.c:1428
x64_sys_call+0x36f5/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:258
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Uninit was stored to memory at:
sha256_transform lib/crypto/sha256.c:117 [inline]
sha256_transform_blocks+0x2dbf/0x2e90 lib/crypto/sha256.c:127
lib_sha256_base_do_update include/crypto/sha256_base.h:63 [inline]
sha256_update+0x2ff/0x340 lib/crypto/sha256.c:136
crypto_sha256_update+0x37/0x60 crypto/sha256_generic.c:39
crypto_shash_update+0x79/0xa0 crypto/shash.c:52
ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:491 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
ima_calc_file_hash+0x1804/0x3c90 security/integrity/ima/ima_crypto.c:568
ima_collect_measurement+0x464/0xd20 security/integrity/ima/ima_api.c:293
process_measurement+0x294a/0x3f30 security/integrity/ima/ima_main.c:372
ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:572
security_file_post_open+0xc6/0x540 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x58cc/0x6200 fs/namei.c:3987
do_filp_open+0x268/0x600 fs/namei.c:4014
do_sys_openat2+0x1bf/0x2f0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x2a1/0x310 fs/open.c:1428
x64_sys_call+0x36f5/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:258
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Uninit was stored to memory at:
BLEND_OP lib/crypto/sha256.c:61 [inline]
sha256_transform lib/crypto/sha256.c:91 [inline]
sha256_transform_blocks+0xf33/0x2e90 lib/crypto/sha256.c:127
lib_sha256_base_do_update include/crypto/sha256_base.h:63 [inline]
sha256_update+0x2ff/0x340 lib/crypto/sha256.c:136
crypto_sha256_update+0x37/0x60 crypto/sha256_generic.c:39
crypto_shash_update+0x79/0xa0 crypto/shash.c:52
ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:491 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
ima_calc_file_hash+0x1804/0x3c90 security/integrity/ima/ima_crypto.c:568
ima_collect_measurement+0x464/0xd20 security/integrity/ima/ima_api.c:293
process_measurement+0x294a/0x3f30 security/integrity/ima/ima_main.c:372
ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:572
security_file_post_open+0xc6/0x540 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x58cc/0x6200 fs/namei.c:3987
do_filp_open+0x268/0x600 fs/namei.c:4014
do_sys_openat2+0x1bf/0x2f0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x2a1/0x310 fs/open.c:1428
x64_sys_call+0x36f5/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:258
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Uninit was stored to memory at:
BLEND_OP lib/crypto/sha256.c:61 [inline]
sha256_transform lib/crypto/sha256.c:92 [inline]
sha256_transform_blocks+0xf7d/0x2e90 lib/crypto/sha256.c:127
lib_sha256_base_do_update include/crypto/sha256_base.h:63 [inline]
sha256_update+0x2ff/0x340 lib/crypto/sha256.c:136
crypto_sha256_update+0x37/0x60 crypto/sha256_generic.c:39
crypto_shash_update+0x79/0xa0 crypto/shash.c:52
ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:491 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
ima_calc_file_hash+0x1804/0x3c90 security/integrity/ima/ima_crypto.c:568
ima_collect_measurement+0x464/0xd20 security/integrity/ima/ima_api.c:293
process_measurement+0x294a/0x3f30 security/integrity/ima/ima_main.c:372
ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:572
security_file_post_open+0xc6/0x540 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x58cc/0x6200 fs/namei.c:3987
do_filp_open+0x268/0x600 fs/namei.c:4014
do_sys_openat2+0x1bf/0x2f0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x2a1/0x310 fs/open.c:1428
x64_sys_call+0x36f5/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:258
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Uninit was stored to memory at:
BLEND_OP lib/crypto/sha256.c:61 [inline]
sha256_transform lib/crypto/sha256.c:93 [inline]
sha256_transform_blocks+0xfb5/0x2e90 lib/crypto/sha256.c:127
lib_sha256_base_do_update include/crypto/sha256_base.h:63 [inline]
sha256_update+0x2ff/0x340 lib/crypto/sha256.c:136
crypto_sha256_update+0x37/0x60 crypto/sha256_generic.c:39
crypto_shash_update+0x79/0xa0 crypto/shash.c:52
ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:491 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
ima_calc_file_hash+0x1804/0x3c90 security/integrity/ima/ima_crypto.c:568
ima_collect_measurement+0x464/0xd20 security/integrity/ima/ima_api.c:293
process_measurement+0x294a/0x3f30 security/integrity/ima/ima_main.c:372
ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:572
security_file_post_open+0xc6/0x540 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x58cc/0x6200 fs/namei.c:3987
do_filp_open+0x268/0x600 fs/namei.c:4014
do_sys_openat2+0x1bf/0x2f0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x2a1/0x310 fs/open.c:1428
x64_sys_call+0x36f5/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:258
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Uninit was stored to memory at:
LOAD_OP lib/crypto/sha256.c:56 [inline]
sha256_transform lib/crypto/sha256.c:82 [inline]
sha256_transform_blocks+0x2c35/0x2e90 lib/crypto/sha256.c:127
lib_sha256_base_do_update include/crypto/sha256_base.h:63 [inline]
sha256_update+0x2ff/0x340 lib/crypto/sha256.c:136
crypto_sha256_update+0x37/0x60 crypto/sha256_generic.c:39
crypto_shash_update+0x79/0xa0 crypto/shash.c:52
ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:491 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
ima_calc_file_hash+0x1804/0x3c90 security/integrity/ima/ima_crypto.c:568
ima_collect_measurement+0x464/0xd20 security/integrity/ima/ima_api.c:293
process_measurement+0x294a/0x3f30 security/integrity/ima/ima_main.c:372
ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:572
security_file_post_open+0xc6/0x540 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x58cc/0x6200 fs/namei.c:3987
do_filp_open+0x268/0x600 fs/namei.c:4014
do_sys_openat2+0x1bf/0x2f0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x2a1/0x310 fs/open.c:1428
x64_sys_call+0x36f5/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:258
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Uninit was stored to memory at:
memcpy_to_iter lib/iov_iter.c:65 [inline]
iterate_kvec include/linux/iov_iter.h:86 [inline]
iterate_and_advance2 include/linux/iov_iter.h:306 [inline]
iterate_and_advance include/linux/iov_iter.h:328 [inline]
_copy_to_iter+0x1248/0x2b30 lib/iov_iter.c:185
copy_page_to_iter+0x419/0x880 lib/iov_iter.c:362
copy_folio_to_iter include/linux/uio.h:189 [inline]
filemap_read+0xc65/0x1560 mm/filemap.c:2697
bch2_read_iter+0x1a90/0x2010 fs/bcachefs/fs-io-direct.c:208
__kernel_read+0x726/0xd30 fs/read_write.c:523
integrity_kernel_read+0x77/0x90 security/integrity/iint.c:28
ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:480 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
ima_calc_file_hash+0x1731/0x3c90 security/integrity/ima/ima_crypto.c:568
ima_collect_measurement+0x464/0xd20 security/integrity/ima/ima_api.c:293
process_measurement+0x294a/0x3f30 security/integrity/ima/ima_main.c:372
ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:572
security_file_post_open+0xc6/0x540 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x58cc/0x6200 fs/namei.c:3987
do_filp_open+0x268/0x600 fs/namei.c:4014
do_sys_openat2+0x1bf/0x2f0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x2a1/0x310 fs/open.c:1428
x64_sys_call+0x36f5/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:258
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Uninit was created at:
__alloc_pages_noprof+0x9a7/0xe00 mm/page_alloc.c:4774
alloc_pages_mpol_noprof+0x299/0x990 mm/mempolicy.c:2269
alloc_pages_noprof mm/mempolicy.c:2348 [inline]
folio_alloc_noprof+0x1db/0x310 mm/mempolicy.c:2355
filemap_alloc_folio_noprof+0xa6/0x440 mm/filemap.c:1009
ra_alloc_folio mm/readahead.c:439 [inline]
page_cache_ra_order+0x893/0x1250 mm/readahead.c:506
page_cache_sync_ra+0xed1/0x11a0 mm/readahead.c:612
page_cache_sync_readahead include/linux/pagemap.h:1397 [inline]
filemap_get_pages+0x5a8/0x3860 mm/filemap.c:2546
filemap_read+0x613/0x1560 mm/filemap.c:2646
bch2_read_iter+0x1a90/0x2010 fs/bcachefs/fs-io-direct.c:208
__kernel_read+0x726/0xd30 fs/read_write.c:523
integrity_kernel_read+0x77/0x90 security/integrity/iint.c:28
ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:480 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
ima_calc_file_hash+0x1731/0x3c90 security/integrity/ima/ima_crypto.c:568
ima_collect_measurement+0x464/0xd20 security/integrity/ima/ima_api.c:293
process_measurement+0x294a/0x3f30 security/integrity/ima/ima_main.c:372
ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:572
security_file_post_open+0xc6/0x540 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x58cc/0x6200 fs/namei.c:3987
do_filp_open+0x268/0x600 fs/namei.c:4014
do_sys_openat2+0x1bf/0x2f0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x2a1/0x310 fs/open.c:1428
x64_sys_call+0x36f5/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:258
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
CPU: 1 UID: 0 PID: 8047 Comm: syz-executor129 Not tainted 6.13.0-rc2-syzkaller-00362-g2d8308bf5b67-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
=====================================================
Tested on:
commit: 2d8308bf Merge tag 'scsi-fixes' of git://git.kernel.or..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=171c4344580000
kernel config: https://syzkaller.appspot.com/x/.config?x=95d0bb0535bcaca0
dashboard link: https://syzkaller.appspot.com/bug?extid=3c88ea590c13f5f92152
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=12b0fbe8580000
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2024-12-15 1:25 ` [syzbot] [bcachefs?] KMSAN: uninit-value in LZ4_decompress_safe_partial syzbot
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