syzbot

bcachefs (loop2): going read-write
bcachefs (loop2): done starting filesystem
=====================================================
BUG: KMSAN: uninit-value in ima_lookup_digest_entry security/integrity/ima/ima_queue.c:64 [inline]
BUG: KMSAN: uninit-value in ima_add_template_entry+0x7a5/0x8d0 security/integrity/ima/ima_queue.c:191
 ima_lookup_digest_entry security/integrity/ima/ima_queue.c:64 [inline]
 ima_add_template_entry+0x7a5/0x8d0 security/integrity/ima/ima_queue.c:191
 ima_store_template security/integrity/ima/ima_api.c:122 [inline]
 ima_store_measurement+0x388/0x970 security/integrity/ima/ima_api.c:383
 process_measurement+0x3075/0x40e0 security/integrity/ima/ima_main.c:393
 ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:613
 security_file_post_open+0xbf/0x530 security/security.c:3130
 do_open fs/namei.c:3882 [inline]
 path_openat+0x5ac3/0x6760 fs/namei.c:4039
 do_filp_open+0x280/0x660 fs/namei.c:4066
 do_sys_openat2+0x1bb/0x2f0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1455
 x64_sys_call+0x213/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 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+0x276d/0x2880 lib/crypto/sha256.c:127
 lib_sha256_base_do_finalize include/crypto/sha256_base.h:101 [inline]
 __sha256_final lib/crypto/sha256.c:142 [inline]
 sha256_final+0x169/0x460 lib/crypto/sha256.c:148
 crypto_sha256_final+0xca/0x120 crypto/sha256_generic.c:49
 crypto_shash_final+0x72/0xa0 crypto/shash.c:58
 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:498 [inline]
 ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
 ima_calc_file_hash+0x240a/0x3fd0 security/integrity/ima/ima_crypto.c:568
 ima_collect_measurement+0x45d/0xe60 security/integrity/ima/ima_api.c:293
 process_measurement+0x2d1a/0x40e0 security/integrity/ima/ima_main.c:385
 ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:613
 security_file_post_open+0xbf/0x530 security/security.c:3130
 do_open fs/namei.c:3882 [inline]
 path_openat+0x5ac3/0x6760 fs/namei.c:4039
 do_filp_open+0x280/0x660 fs/namei.c:4066
 do_sys_openat2+0x1bb/0x2f0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1455
 x64_sys_call+0x213/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 sha256_transform lib/crypto/sha256.c:117 [inline]
 sha256_transform_blocks+0x276d/0x2880 lib/crypto/sha256.c:127
 lib_sha256_base_do_update include/crypto/sha256_base.h:63 [inline]
 sha256_update+0x392/0x410 lib/crypto/sha256.c:136
 crypto_sha256_update+0x35/0x60 crypto/sha256_generic.c:39
 crypto_shash_update+0x7a/0xb0 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+0x20d7/0x3fd0 security/integrity/ima/ima_crypto.c:568
 ima_collect_measurement+0x45d/0xe60 security/integrity/ima/ima_api.c:293
 process_measurement+0x2d1a/0x40e0 security/integrity/ima/ima_main.c:385
 ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:613
 security_file_post_open+0xbf/0x530 security/security.c:3130
 do_open fs/namei.c:3882 [inline]
 path_openat+0x5ac3/0x6760 fs/namei.c:4039
 do_filp_open+0x280/0x660 fs/namei.c:4066
 do_sys_openat2+0x1bb/0x2f0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1455
 x64_sys_call+0x213/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 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+0xded/0x2880 lib/crypto/sha256.c:127
 lib_sha256_base_do_update include/crypto/sha256_base.h:63 [inline]
 sha256_update+0x392/0x410 lib/crypto/sha256.c:136
 crypto_sha256_update+0x35/0x60 crypto/sha256_generic.c:39
 crypto_shash_update+0x7a/0xb0 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+0x20d7/0x3fd0 security/integrity/ima/ima_crypto.c:568
 ima_collect_measurement+0x45d/0xe60 security/integrity/ima/ima_api.c:293
 process_measurement+0x2d1a/0x40e0 security/integrity/ima/ima_main.c:385
 ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:613
 security_file_post_open+0xbf/0x530 security/security.c:3130
 do_open fs/namei.c:3882 [inline]
 path_openat+0x5ac3/0x6760 fs/namei.c:4039
 do_filp_open+0x280/0x660 fs/namei.c:4066
 do_sys_openat2+0x1bb/0x2f0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1455
 x64_sys_call+0x213/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 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+0xe00/0x2880 lib/crypto/sha256.c:127
 lib_sha256_base_do_update include/crypto/sha256_base.h:63 [inline]
 sha256_update+0x392/0x410 lib/crypto/sha256.c:136
 crypto_sha256_update+0x35/0x60 crypto/sha256_generic.c:39
 crypto_shash_update+0x7a/0xb0 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+0x20d7/0x3fd0 security/integrity/ima/ima_crypto.c:568
 ima_collect_measurement+0x45d/0xe60 security/integrity/ima/ima_api.c:293
 process_measurement+0x2d1a/0x40e0 security/integrity/ima/ima_main.c:385
 ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:613
 security_file_post_open+0xbf/0x530 security/security.c:3130
 do_open fs/namei.c:3882 [inline]
 path_openat+0x5ac3/0x6760 fs/namei.c:4039
 do_filp_open+0x280/0x660 fs/namei.c:4066
 do_sys_openat2+0x1bb/0x2f0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1455
 x64_sys_call+0x213/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 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+0xe15/0x2880 lib/crypto/sha256.c:127
 lib_sha256_base_do_update include/crypto/sha256_base.h:63 [inline]
 sha256_update+0x392/0x410 lib/crypto/sha256.c:136
 crypto_sha256_update+0x35/0x60 crypto/sha256_generic.c:39
 crypto_shash_update+0x7a/0xb0 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+0x20d7/0x3fd0 security/integrity/ima/ima_crypto.c:568
 ima_collect_measurement+0x45d/0xe60 security/integrity/ima/ima_api.c:293
 process_measurement+0x2d1a/0x40e0 security/integrity/ima/ima_main.c:385
 ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:613
 security_file_post_open+0xbf/0x530 security/security.c:3130
 do_open fs/namei.c:3882 [inline]
 path_openat+0x5ac3/0x6760 fs/namei.c:4039
 do_filp_open+0x280/0x660 fs/namei.c:4066
 do_sys_openat2+0x1bb/0x2f0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1455
 x64_sys_call+0x213/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 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+0x268b/0x2880 lib/crypto/sha256.c:127
 lib_sha256_base_do_update include/crypto/sha256_base.h:63 [inline]
 sha256_update+0x392/0x410 lib/crypto/sha256.c:136
 crypto_sha256_update+0x35/0x60 crypto/sha256_generic.c:39
 crypto_shash_update+0x7a/0xb0 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+0x20d7/0x3fd0 security/integrity/ima/ima_crypto.c:568
 ima_collect_measurement+0x45d/0xe60 security/integrity/ima/ima_api.c:293
 process_measurement+0x2d1a/0x40e0 security/integrity/ima/ima_main.c:385
 ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:613
 security_file_post_open+0xbf/0x530 security/security.c:3130
 do_open fs/namei.c:3882 [inline]
 path_openat+0x5ac3/0x6760 fs/namei.c:4039
 do_filp_open+0x280/0x660 fs/namei.c:4066
 do_sys_openat2+0x1bb/0x2f0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1455
 x64_sys_call+0x213/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 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+0x176c/0x32f0 lib/iov_iter.c:185
 copy_page_to_iter+0x43c/0x8b0 lib/iov_iter.c:362
 copy_folio_to_iter include/linux/uio.h:198 [inline]
 filemap_read+0xced/0x2190 mm/filemap.c:2753
 bch2_read_iter+0x559/0x21c0 fs/bcachefs/fs-io-direct.c:221
 __kernel_read+0x750/0xda0 fs/read_write.c:528
 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+0x1ff9/0x3fd0 security/integrity/ima/ima_crypto.c:568
 ima_collect_measurement+0x45d/0xe60 security/integrity/ima/ima_api.c:293
 process_measurement+0x2d1a/0x40e0 security/integrity/ima/ima_main.c:385
 ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:613
 security_file_post_open+0xbf/0x530 security/security.c:3130
 do_open fs/namei.c:3882 [inline]
 path_openat+0x5ac3/0x6760 fs/namei.c:4039
 do_filp_open+0x280/0x660 fs/namei.c:4066
 do_sys_openat2+0x1bb/0x2f0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1455
 x64_sys_call+0x213/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 __alloc_frozen_pages_noprof+0x689/0xf00 mm/page_alloc.c:4993
 alloc_pages_mpol+0x328/0x860 mm/mempolicy.c:2301
 alloc_frozen_pages_noprof mm/mempolicy.c:2372 [inline]
 alloc_pages_noprof mm/mempolicy.c:2392 [inline]
 folio_alloc_noprof+0x109/0x360 mm/mempolicy.c:2402
 filemap_alloc_folio_noprof+0x9d/0x420 mm/filemap.c:1007
 ractl_alloc_folio mm/readahead.c:186 [inline]
 ra_alloc_folio mm/readahead.c:441 [inline]
 page_cache_ra_order+0x93f/0x14f0 mm/readahead.c:509
 page_cache_sync_ra+0x108a/0x13e0 mm/readahead.c:621
 filemap_get_pages+0xfb3/0x3a70 mm/filemap.c:2591
 filemap_read+0x5c6/0x2190 mm/filemap.c:2702
 bch2_read_iter+0x559/0x21c0 fs/bcachefs/fs-io-direct.c:221
 __kernel_read+0x750/0xda0 fs/read_write.c:528
 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+0x1ff9/0x3fd0 security/integrity/ima/ima_crypto.c:568
 ima_collect_measurement+0x45d/0xe60 security/integrity/ima/ima_api.c:293
 process_measurement+0x2d1a/0x40e0 security/integrity/ima/ima_main.c:385
 ima_file_check+0x8e/0xd0 security/integrity/ima/ima_main.c:613
 security_file_post_open+0xbf/0x530 security/security.c:3130
 do_open fs/namei.c:3882 [inline]
 path_openat+0x5ac3/0x6760 fs/namei.c:4039
 do_filp_open+0x280/0x660 fs/namei.c:4066
 do_sys_openat2+0x1bb/0x2f0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1455
 x64_sys_call+0x213/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 0 UID: 0 PID: 7337 Comm: syz.2.106 Not tainted 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
=====================================================