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BUG: corrupted list in __dentry_kill (2)

Status: upstream: reported C repro on 2024/03/27 11:32
Reported-by: syzbot+3e9b6f2c49278173fda0@syzkaller.appspotmail.com
First crash: 516d, last: 107d
▶ ▼ Similar bugs (8)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: corrupted list in __dentry_kill fs 8 C 35 2684d 2704d 5/29 fixed on 2018/05/08 18:30
linux-4.19 BUG: corrupted list in __dentry_kill 8 1 1957d 1957d 0/1 auto-closed as invalid on 2020/08/15 07:34
android-5-15 BUG: corrupted list in __dentry_kill 8 1 239d 239d 0/2 auto-obsoleted due to no activity on 2025/03/30 08:49
android-5-10 BUG: corrupted list in __dentry_kill 8 C inconclusive 80 15d 516d 0/2 upstream: reported C repro on 2024/03/27 10:55
upstream BUG: corrupted list in __dentry_kill (2) fs 8 C done 4945 2084d 2084d 15/29 fixed on 2020/02/18 14:31
android-6-1 BUG: corrupted list in __dentry_kill (2) 8 2 127d 197d 0/2 auto-obsoleted due to no activity on 2025/07/20 02:58
android-54 BUG: corrupted list in __dentry_kill 8 1 875d 875d 0/2 auto-obsoleted due to no activity on 2023/08/01 17:00
android-6-1 BUG: corrupted list in __dentry_kill 8 2 381d 409d 0/2 auto-obsoleted due to no activity on 2024/11/07 13:03
▶ ▼ Last patch testing requests (7)
Created Duration User Patch Repo Result
2025/07/19 13:23 18m retest repro android12-5.4 error
2025/05/10 06:51 14m retest repro android12-5.4 error
2025/01/16 23:09 2m retest repro android12-5.4 error
2024/11/07 16:25 16m retest repro android12-5.4 report log
2024/08/29 08:01 5m retest repro android12-5.4 report log
2024/06/20 07:41 4m retest repro android12-5.4 report log
2024/04/10 14:45 58m retest repro android12-5.4 report log

Sample crash report:
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
---[ end trace e98fc4b4f13babd2 ]---
list_del corruption. prev->next should be ffff8881e7f40800, but was ffff8881e7f3eb30
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 357 Comm: syz-executor878 Tainted: G        W         5.4.265-syzkaller-00009-g43a5ead9254d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:__list_del_entry_valid+0x107/0x120 lib/list_debug.c:59
Code: 4c 89 f6 e8 6a 0b 1e 02 0f 0b 48 c7 c7 00 41 fa 84 4c 89 f6 e8 59 0b 1e 02 0f 0b 48 c7 c7 60 41 fa 84 4c 89 f6 e8 48 0b 1e 02 <0f> 0b 48 c7 c7 c0 41 fa 84 4c 89 f6 e8 37 0b 1e 02 0f 0b 66 0f 1f
RSP: 0018:ffff8881db8bfab8 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff8881e7f3eb30 RCX: 2369c3de64081000
RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
RBP: ffff8881e7f40780 R08: ffffffff814d68b2 R09: ffffed103edca9b8
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881e7f407c8 R14: ffff8881e7f40800 R15: ffff8881e7f3ec40
FS:  0000555556838380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020004b30 CR3: 00000001dbf6b000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_del_entry include/linux/list.h:131 [inline]
 dentry_unlist fs/dcache.c:522 [inline]
 __dentry_kill+0x242/0x630 fs/dcache.c:575
 dentry_kill+0xb8/0x280 fs/dcache.c:673
 dput+0x154/0x2f0 fs/dcache.c:859
 path_put+0x35/0x60 fs/namei.c:485
 dentry_release+0x4e/0xa0 fs/incfs/vfs.c:1562
 __dentry_kill+0x48d/0x630 fs/dcache.c:584
 dentry_kill+0xb8/0x280 fs/dcache.c:673
 dput+0x154/0x2f0 fs/dcache.c:859
 do_renameat2+0x9bd/0x1110 fs/namei.c:4737
 __do_sys_renameat2 fs/namei.c:4768 [inline]
 __se_sys_renameat2 fs/namei.c:4765 [inline]
 __x64_sys_renameat2+0xb1/0xc0 fs/namei.c:4765
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
Modules linked in:
---[ end trace e98fc4b4f13babd3 ]---
RIP: 0010:__list_del_entry_valid+0x107/0x120 lib/list_debug.c:59
Code: 4c 89 f6 e8 6a 0b 1e 02 0f 0b 48 c7 c7 00 41 fa 84 4c 89 f6 e8 59 0b 1e 02 0f 0b 48 c7 c7 60 41 fa 84 4c 89 f6 e8 48 0b 1e 02 <0f> 0b 48 c7 c7 c0 41 fa 84 4c 89 f6 e8 37 0b 1e 02 0f 0b 66 0f 1f
RSP: 0018:ffff8881db8bfab8 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff8881e7f3eb30 RCX: 2369c3de64081000
RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
RBP: ffff8881e7f40780 R08: ffffffff814d68b2 R09: ffffed103edca9b8
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881e7f407c8 R14: ffff8881e7f40800 R15: ffff8881e7f3ec40
FS:  0000555556838380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020004b30 CR3: 00000001dbf6b000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (11):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/03/27 11:30 android12-5.4 43a5ead9254d 454571b6 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in __dentry_kill
2025/05/10 14:14 android12-5.4 cd8e74fa0fa3 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in __dentry_kill
2025/04/25 01:43 android12-5.4 986c38813dff 9882047a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in __dentry_kill
2025/04/12 22:19 android12-5.4 41adfeb3d639 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in __dentry_kill
2025/03/31 06:05 android12-5.4 41adfeb3d639 d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in __dentry_kill
2025/03/16 20:43 android12-5.4 6b07fcd94a6a e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in __dentry_kill
2025/03/12 15:09 android12-5.4 6b07fcd94a6a ee70e6db .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in __dentry_kill
2025/03/09 19:04 android12-5.4 6b07fcd94a6a 163f510d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in __dentry_kill
2025/02/21 11:47 android12-5.4 39762b7a60e9 0808a665 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in __dentry_kill
2025/02/12 05:30 android12-5.4 39762b7a60e9 f2baddf5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in __dentry_kill
2025/02/01 19:05 android12-5.4 3f2c17e79750 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan BUG: corrupted list in __dentry_kill
* Struck through repros no longer work on HEAD.