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WARNING in fscrypt_fname_siphash

Status: upstream: reported C repro on 2024/10/20 08:52
Reported-by: syzbot+0095e55ed9774db43786@syzkaller.appspotmail.com
First crash: 509d, last: 69d
Fix commit to backport (bisect log) :
tree: upstream
commit 985b67cd86392310d9e9326de941c22fc9340eec
Author: Lizhi Xu <lizhi.xu@windriver.com>
Date: Wed Jun 5 01:23:35 2024 +0000

  ext4: filesystems without casefold feature cannot be mounted with siphash

[report pending]
  
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2026/03/02 upstream (ToT) 11439c4635ed C Failed due to an error; will retry later
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in fscrypt_fname_siphash ext4 fscrypt -1 C unreliable 32 559d 652d 28/29 fixed on 2024/10/22 11:57
linux-6.1 WARNING in fscrypt_fname_siphash -1 1 655d 655d 0/3 auto-obsoleted due to no activity on 2024/09/04 07:37
linux-6.1 WARNING in fscrypt_fname_siphash (2) origin:lts-only -1 C done 63 77d 488d 0/3 upstream: reported C repro on 2024/11/10 06:13
linux-6.6 WARNING in fscrypt_fname_siphash origin:lts-only -1 C done 14 85d 239d 0/2 upstream: reported C repro on 2025/07/17 06:42
▶ ▼ Last patch testing requests (7)
Created Duration User Patch Repo Result
2026/02/01 10:47 16m retest repro linux-5.15.y report log
2026/02/01 00:35 15m retest repro linux-5.15.y OK log
2026/02/01 00:35 18m retest repro linux-5.15.y OK log
2026/02/01 00:35 2h39m retest repro linux-5.15.y OK log
2026/01/03 15:45 10m retest repro linux-5.15.y report log
2025/12/10 13:29 15m spyjetfayed@gmail.com git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git 68efe5a6c16a05391e3d96025b41e9bf573f968c report log
2025/12/10 13:19 0m spyjetfayed@gmail.com git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git c12438803c88d3991121d7ae89b6b1857fe3d822 error
▶ ▼ Fix bisection attempts (1)
Created Duration User Patch Repo Result
2024/10/29 13:28 12h02m (2) fix candidate upstream OK (1) job log

Sample crash report:
EXT4-fs (loop0): mounted filesystem without journal. Opts: test_dummy_encryption,journal_ioprio=0x0000000000000006,inode_readahead_blks=0x0000000000040000,,errors=continue. Quota mode: none.
fscrypt: AES-256-CTS-CBC using implementation "cts-cbc-aes-ce"
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4287 at fs/crypto/fname.c:543 fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
Modules linked in:
CPU: 0 PID: 4287 Comm: syz.0.16 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
lr : fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
sp : ffff80001fdb6bf0
x29: ffff80001fdb6bf0 x28: ffff80001fdb7080 x27: ffff700003fb6d8c
x26: dfff800000000000 x25: 0000000000000000 x24: 0000000000000006
x23: 000000005948191c x22: 000000008d4c4d91 x21: dfff800000000000
x20: ffff0000ded7a000 x19: ffff80001fdb6cc0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008c7c800 x15: 0000000000000006
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800008a31288
x8 : ffff0000d5819b40 x7 : 0000000000000000 x6 : ffff0000d16a6c00
x5 : ffff0000dec679f8 x4 : 0000000000000000 x3 : ffff800008c7c88c
x2 : 0000000000000000 x1 : ffff80001fdb6cc0 x0 : ffff0000e278b478
Call trace:
 fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
 __ext4fs_dirhash+0x2cc/0xb28 fs/ext4/hash.c:268
 ext4fs_dirhash+0x138/0x27c fs/ext4/hash.c:322
 htree_dirblock_to_tree+0x57c/0xc20 fs/ext4/namei.c:1125
 ext4_htree_fill_tree+0x490/0xd74 fs/ext4/namei.c:1220
 ext4_dx_readdir fs/ext4/dir.c:609 [inline]
 ext4_readdir+0x2574/0x2fc8 fs/ext4/dir.c:145
 iterate_dir+0x1f0/0x4cc fs/readdir.c:-1
 ovl_dir_read+0xdc/0x3e0 fs/overlayfs/readdir.c:309
 ovl_check_d_type_supported+0x98/0x108 fs/overlayfs/readdir.c:1059
 ovl_make_workdir fs/overlayfs/super.c:1393 [inline]
 ovl_get_workdir+0x414/0xe8c fs/overlayfs/super.c:1526
 ovl_fill_super+0x139c/0x2294 fs/overlayfs/super.c:2082
 mount_nodev+0x68/0x104 fs/super.c:1446
 ovl_mount+0x3c/0x50 fs/overlayfs/super.c:2173
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x228/0x810 fs/namespace.c:3014
 path_mount+0x5b4/0x1000 fs/namespace.c:3344
 do_mount fs/namespace.c:3357 [inline]
 __do_sys_mount fs/namespace.c:3565 [inline]
 __se_sys_mount fs/namespace.c:3542 [inline]
 __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 6374
hardirqs last  enabled at (6373): [<ffff8000112967fc>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (6373): [<ffff8000112967fc>] _raw_spin_unlock_irqrestore+0xa8/0x14c kernel/locking/spinlock.c:194
hardirqs last disabled at (6374): [<ffff8000111b7ff8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (6266): [<ffff800008031f40>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (6264): [<ffff800008031f0c>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace 52410f6108ef2a6e ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4287 at fs/crypto/fname.c:543 fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
Modules linked in:
CPU: 0 PID: 4287 Comm: syz.0.16 Tainted: G        W         5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
lr : fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
sp : ffff80001fdb6bf0
x29: ffff80001fdb6bf0 x28: ffff80001fdb7080 x27: ffff700003fb6d8c
x26: dfff800000000000 x25: 0000000000000000 x24: 0000000000000006
x23: 000000005948191c x22: 000000008d4c4d91 x21: dfff800000000000
x20: ffff0000ded7a000 x19: ffff80001fdb6cc0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008c7c800 x15: 0000000000000006
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800008a31288
x8 : ffff0000d5819b40 x7 : 0000000000000000 x6 : ffff0000d16a6c00
x5 : ffff0000dec679f8 x4 : 0000000000000000 x3 : ffff800008c7c88c
x2 : 0000000000000000 x1 : ffff80001fdb6cc0 x0 : ffff0000e278b478
Call trace:
 fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
 __ext4fs_dirhash+0x2cc/0xb28 fs/ext4/hash.c:268
 ext4fs_dirhash+0x138/0x27c fs/ext4/hash.c:322
 htree_dirblock_to_tree+0x57c/0xc20 fs/ext4/namei.c:1125
 ext4_htree_fill_tree+0x490/0xd74 fs/ext4/namei.c:1220
 ext4_dx_readdir fs/ext4/dir.c:609 [inline]
 ext4_readdir+0x2574/0x2fc8 fs/ext4/dir.c:145
 iterate_dir+0x1f0/0x4cc fs/readdir.c:-1
 ovl_dir_read+0xdc/0x3e0 fs/overlayfs/readdir.c:309
 ovl_check_d_type_supported+0x98/0x108 fs/overlayfs/readdir.c:1059
 ovl_make_workdir fs/overlayfs/super.c:1393 [inline]
 ovl_get_workdir+0x414/0xe8c fs/overlayfs/super.c:1526
 ovl_fill_super+0x139c/0x2294 fs/overlayfs/super.c:2082
 mount_nodev+0x68/0x104 fs/super.c:1446
 ovl_mount+0x3c/0x50 fs/overlayfs/super.c:2173
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x228/0x810 fs/namespace.c:3014
 path_mount+0x5b4/0x1000 fs/namespace.c:3344
 do_mount fs/namespace.c:3357 [inline]
 __do_sys_mount fs/namespace.c:3565 [inline]
 __se_sys_mount fs/namespace.c:3542 [inline]
 __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 6468
hardirqs last  enabled at (6467): [<ffff8000112967fc>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (6467): [<ffff8000112967fc>] _raw_spin_unlock_irqrestore+0xa8/0x14c kernel/locking/spinlock.c:194
hardirqs last disabled at (6468): [<ffff8000111b7ff8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (6460): [<ffff80000819e9e8>] softirq_handle_end kernel/softirq.c:419 [inline]
softirqs last  enabled at (6460): [<ffff80000819e9e8>] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604
softirqs last disabled at (6377): [<ffff80000819efec>] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (6377): [<ffff80000819efec>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (6377): [<ffff80000819efec>] invoke_softirq kernel/softirq.c:457 [inline]
softirqs last disabled at (6377): [<ffff80000819efec>] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659
---[ end trace 52410f6108ef2a6f ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4287 at fs/crypto/fname.c:543 fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
Modules linked in:
CPU: 0 PID: 4287 Comm: syz.0.16 Tainted: G        W         5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
lr : fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
sp : ffff80001fdb6bf0
x29: ffff80001fdb6bf0 x28: ffff80001fdb7080 x27: ffff700003fb6d8c
x26: dfff800000000000 x25: 0000000000000000 x24: 0000000000000006
x23: 000000005948191c x22: 000000008d4c4d91 x21: dfff800000000000
x20: ffff0000ded7a000 x19: ffff80001fdb6cc0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008c7c800 x15: 0000000000000006
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800008a31288
x8 : ffff0000d5819b40 x7 : 0000000000000000 x6 : ffff0000d16a6c00
x5 : ffff0000dec679f8 x4 : 0000000000000000 x3 : ffff800008c7c88c
x2 : 0000000000000000 x1 : ffff80001fdb6cc0 x0 : ffff0000e278b478
Call trace:
 fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
 __ext4fs_dirhash+0x2cc/0xb28 fs/ext4/hash.c:268
 ext4fs_dirhash+0x138/0x27c fs/ext4/hash.c:322
 htree_dirblock_to_tree+0x57c/0xc20 fs/ext4/namei.c:1125
 ext4_htree_fill_tree+0x490/0xd74 fs/ext4/namei.c:1220
 ext4_dx_readdir fs/ext4/dir.c:609 [inline]
 ext4_readdir+0x2574/0x2fc8 fs/ext4/dir.c:145
 iterate_dir+0x1f0/0x4cc fs/readdir.c:-1
 ovl_dir_read+0xdc/0x3e0 fs/overlayfs/readdir.c:309
 ovl_check_d_type_supported+0x98/0x108 fs/overlayfs/readdir.c:1059
 ovl_make_workdir fs/overlayfs/super.c:1393 [inline]
 ovl_get_workdir+0x414/0xe8c fs/overlayfs/super.c:1526
 ovl_fill_super+0x139c/0x2294 fs/overlayfs/super.c:2082
 mount_nodev+0x68/0x104 fs/super.c:1446
 ovl_mount+0x3c/0x50 fs/overlayfs/super.c:2173
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x228/0x810 fs/namespace.c:3014
 path_mount+0x5b4/0x1000 fs/namespace.c:3344
 do_mount fs/namespace.c:3357 [inline]
 __do_sys_mount fs/namespace.c:3565 [inline]
 __se_sys_mount fs/namespace.c:3542 [inline]
 __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 6540
hardirqs last  enabled at (6539): [<ffff8000111bacfc>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (6539): [<ffff8000111bacfc>] exit_to_kernel_mode+0xe0/0x168 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (6540): [<ffff8000111b7ff8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (6534): [<ffff80000819e9e8>] softirq_handle_end kernel/softirq.c:419 [inline]
softirqs last  enabled at (6534): [<ffff80000819e9e8>] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604
softirqs last disabled at (6471): [<ffff80000819efec>] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (6471): [<ffff80000819efec>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (6471): [<ffff80000819efec>] invoke_softirq kernel/softirq.c:457 [inline]
softirqs last disabled at (6471): [<ffff80000819efec>] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659
---[ end trace 52410f6108ef2a70 ]---
fscrypt: AES-256-XTS using implementation "xts-aes-ce"
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4287 at fs/crypto/fname.c:543 fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
Modules linked in:
CPU: 0 PID: 4287 Comm: syz.0.16 Tainted: G        W         5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
lr : fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
sp : ffff80001fdb6c90
x29: ffff80001fdb6c90 x28: ffff80001fdb7120 x27: ffff700003fb6da0
x26: dfff800000000000 x25: 0000000000000000 x24: 0000000000000006
x23: 000000005948191c x22: 000000008d4c4d91 x21: dfff800000000000
x20: ffff0000ded7a240 x19: ffff80001fdb6d60 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008c7c800 x15: 0000000000000006
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800008a31288
x8 : ffff0000d5819b40 x7 : 0000000000000000 x6 : ffff0000ee358400
x5 : ffff0000dee6c000 x4 : 0000000000000000 x3 : ffff800008c7c88c
x2 : 0000000000000000 x1 : ffff80001fdb6d60 x0 : ffff0000e278dc58
Call trace:
 fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
 __ext4fs_dirhash+0x2cc/0xb28 fs/ext4/hash.c:268
 ext4fs_dirhash+0x138/0x27c fs/ext4/hash.c:322
 htree_dirblock_to_tree+0x57c/0xc20 fs/ext4/namei.c:1125
 ext4_htree_fill_tree+0x490/0xd74 fs/ext4/namei.c:1220
 ext4_dx_readdir fs/ext4/dir.c:609 [inline]
 ext4_readdir+0x2574/0x2fc8 fs/ext4/dir.c:145
 iterate_dir+0x1f0/0x4cc fs/readdir.c:-1
 ovl_dir_read+0xdc/0x3e0 fs/overlayfs/readdir.c:309
 ovl_indexdir_cleanup+0x1d4/0x62c fs/overlayfs/readdir.c:1172
 ovl_get_indexdir+0x330/0x420 fs/overlayfs/super.c:1592
 ovl_fill_super+0x15ec/0x2294 fs/overlayfs/super.c:2107
 mount_nodev+0x68/0x104 fs/super.c:1446
 ovl_mount+0x3c/0x50 fs/overlayfs/super.c:2173
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x228/0x810 fs/namespace.c:3014
 path_mount+0x5b4/0x1000 fs/namespace.c:3344
 do_mount fs/namespace.c:3357 [inline]
 __do_sys_mount fs/namespace.c:3565 [inline]
 __se_sys_mount fs/namespace.c:3542 [inline]
 __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 8614
hardirqs last  enabled at (8613): [<ffff8000112967fc>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (8613): [<ffff8000112967fc>] _raw_spin_unlock_irqrestore+0xa8/0x14c kernel/locking/spinlock.c:194
hardirqs last disabled at (8614): [<ffff8000111b7ff8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (8436): [<ffff80000819e9e8>] softirq_handle_end kernel/softirq.c:419 [inline]
softirqs last  enabled at (8436): [<ffff80000819e9e8>] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604
softirqs last disabled at (8425): [<ffff80000819efec>] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (8425): [<ffff80000819efec>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (8425): [<ffff80000819efec>] invoke_softirq kernel/softirq.c:457 [inline]
softirqs last disabled at (8425): [<ffff80000819efec>] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659
---[ end trace 52410f6108ef2a71 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4287 at fs/crypto/fname.c:543 fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
Modules linked in:
CPU: 0 PID: 4287 Comm: syz.0.16 Tainted: G        W         5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
lr : fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
sp : ffff80001fdb6c90
x29: ffff80001fdb6c90 x28: ffff80001fdb7120 x27: ffff700003fb6da0
x26: dfff800000000000 x25: 0000000000000000 x24: 0000000000000006
x23: 000000005948191c x22: 000000008d4c4d91 x21: dfff800000000000
x20: ffff0000ded7a240 x19: ffff80001fdb6d60 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008c7c800 x15: 0000000000000006
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800008a31288
x8 : ffff0000d5819b40 x7 : 0000000000000000 x6 : ffff0000ee358400
x5 : ffff0000dee6c000 x4 : 0000000000000000 x3 : ffff800008c7c88c
x2 : 0000000000000000 x1 : ffff80001fdb6d60 x0 : ffff0000e278dc58
Call trace:
 fscrypt_fname_siphash+0xbc/0x10c fs/crypto/fname.c:543
 __ext4fs_dirhash+0x2cc/0xb28 fs/ext4/hash.c:268
 ext4fs_dirhash+0x138/0x27c fs/ext4/hash.c:322
 htree_dirblock_to_tree+0x57c/0xc20 fs/ext4/namei.c:1125
 ext4_htree_fill_tree+0x490/0xd74 fs/ext4/namei.c:1220
 ext4_dx_readdir fs/ext4/dir.c:609 [inline]
 ext4_readdir+0x2574/0x2fc8 fs/ext4/dir.c:145
 iterate_dir+0x1f0/0x4cc fs/readdir.c:-1
 ovl_dir_read+0xdc/0x3e0 fs/overlayfs/readdir.c:309
 ovl_indexdir_cleanup+0x1d4/0x62c fs/overlayfs/readdir.c:1172
 ovl_get_indexdir+0x330/0x420 fs/overlayfs/super.c:1592
 ovl_fill_super+0x15ec/0x2294 fs/overlayfs/super.c:2107
 mount_nodev+0x68/0x104 fs/super.c:1446
 ovl_mount+0x3c/0x50 fs/overlayfs/super.c:2173
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x228/0x810 fs/namespace.c:3014
 path_mount+0x5b4/0x1000 fs/namespace.c:3344
 do_mount fs/namespace.c:3357 [inline]
 __do_sys_mount fs/namespace.c:3565 [inline]
 __se_sys_mount fs/namespace.c:3542 [inline]
 __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 8786
hardirqs last  enabled at (8785): [<ffff8000112967fc>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (8785): [<ffff8000112967fc>] _raw_spin_unlock_irqrestore+0xa8/0x14c kernel/locking/spinlock.c:194
hardirqs last disabled at (8786): [<ffff8000111b7ff8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (8778): [<ffff80000819e9e8>] softirq_handle_end kernel/softirq.c:419 [inline]
softirqs last  enabled at (8778): [<ffff80000819e9e8>] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604
softirqs last disabled at (8617): [<ffff80000819efec>] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (8617): [<ffff80000819efec>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (8617): [<ffff80000819efec>] invoke_softirq kernel/softirq.c:457 [inline]
softirqs last disabled at (8617): [<ffff80000819efec>] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659
---[ end trace 52410f6108ef2a72 ]---

Crashes (64):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/30 23:02 linux-5.15.y c79648372d02 f8f2b4da .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/12/18 09:16 linux-5.15.y 68efe5a6c16a d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/12/18 08:48 linux-5.15.y 68efe5a6c16a d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/10/11 08:25 linux-5.15.y 29e53a5b1c4f ff1712fe .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/10/10 17:20 linux-5.15.y 29e53a5b1c4f ff1712fe .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/10/10 09:13 linux-5.15.y 29e53a5b1c4f ff1712fe .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/08/27 20:25 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/08/26 01:17 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/08/24 21:19 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/08/16 10:07 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/08/16 10:07 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/08/10 06:51 linux-5.15.y c79648372d02 32a0e5ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/08/10 06:49 linux-5.15.y c79648372d02 32a0e5ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/07/12 03:58 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/07/12 03:57 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/07/12 02:18 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/07/12 02:17 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/07/05 16:30 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/07/05 16:29 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/07/05 16:28 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/06/23 17:03 linux-5.15.y 1c700860e8bc d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/06/23 17:02 linux-5.15.y 1c700860e8bc d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/06/06 06:23 linux-5.15.y 1c700860e8bc 6b6b5f21 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/05/25 05:57 linux-5.15.y 98f47d0e9b8c ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/05/25 05:57 linux-5.15.y 98f47d0e9b8c ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/05/05 08:39 linux-5.15.y 16fdf2c7111b b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/04/28 11:39 linux-5.15.y f7347f400572 c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/04/28 11:39 linux-5.15.y f7347f400572 c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/04/18 04:06 linux-5.15.y f7347f400572 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/04/18 04:06 linux-5.15.y f7347f400572 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/04/12 20:34 linux-5.15.y f7347f400572 0bd6db41 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/04/12 20:11 linux-5.15.y f7347f400572 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/04/12 20:10 linux-5.15.y f7347f400572 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2024/11/10 10:38 linux-5.15.y 3c17fc483905 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2024/11/10 10:38 linux-5.15.y 3c17fc483905 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2024/10/20 09:42 linux-5.15.y 584a40a22cb9 cd6fc0a3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2024/10/20 09:18 linux-5.15.y 584a40a22cb9 cd6fc0a3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2024/10/20 08:51 linux-5.15.y 584a40a22cb9 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in fscrypt_fname_siphash
2025/08/28 08:56 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/08/26 07:32 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/08/24 22:45 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/08/21 23:24 linux-5.15.y c79648372d02 3e79b825 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/08/16 15:14 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/08/16 15:14 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/08/13 07:34 linux-5.15.y c79648372d02 22ec1469 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/08/07 03:49 linux-5.15.y c79648372d02 9a42d6b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/08/07 03:49 linux-5.15.y c79648372d02 9a42d6b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/08/07 03:19 linux-5.15.y c79648372d02 9a42d6b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/07/30 22:30 linux-5.15.y c79648372d02 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/07/17 02:57 linux-5.15.y 89950c454265 44f8051e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/06/23 16:45 linux-5.15.y 1c700860e8bc d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
2025/06/23 16:44 linux-5.15.y 1c700860e8bc d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in fscrypt_fname_siphash
* Struck through repros no longer work on HEAD.