kernel BUG in may_delete

Status: upstream: reported C repro on 2024/04/03 23:06
Bug presence: origin:downstream
[Documentation on labels]
Reported-by: syzbot+6807813924e95a9e0a09@syzkaller.appspotmail.com
First crash: 944d, last: 15m
▶ ▼ Bug presence (3)
Date Name Commit Repro Result
2024/04/04 android13-5.15-lts (ToT) 993bed180178 C [report] kernel BUG in may_delete
2024/04/04 lts (merge base) 6139f2a02fe0 C Didn't crash
2024/04/04 upstream (ToT) c85af715cac0 C Didn't crash
▶ ▼ Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-54 kernel BUG in may_delete -1 syz, C 839 528d 944d 0/2 upstream: reported C repro on 2024/04/03 23:36
android-6-1 kernel BUG in may_delete origin:downstream -1 syz, C 6341 5d16h 944d 0/2 upstream: reported C repro on 2024/04/03 23:51
android-5-10 kernel BUG in may_delete -1 syz, C 28225 41m 944d 0/2 upstream: reported C repro on 2024/04/04 00:03
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2024/06/21 00:45 6m retest repro android13-5.15-lts report log

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/namei.c:2941!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 303 Comm: syz-executor280 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:may_delete+0x727/0x730 fs/namei.c:2941
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 82 fe ff ff 48 89 df e8 4a 28 f5 ff e9 75 fe ff ff e8 c0 a7 b5 ff 0f 0b e8 b9 a7 b5 ff <0f> 0b 0f 1f 80 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 a1 a7
RSP: 0018:ffffc900007dfbc8 EFLAGS: 00010293
RAX: ffffffff81b433a7 RBX: ffff888111ed2990 RCX: ffff88810ac32800
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc900007dfc20 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520000fbf58 R12: 1ffff110223da532
R13: 0000000000000001 R14: ffff888120c5c8b0 R15: dffffc0000000000
FS:  00005555733273c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555733407d8 CR3: 0000000121e7c000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vfs_rmdir+0x2f/0x450 fs/namei.c:4138
 incfs_kill_sb+0xfe/0x210 fs/incfs/vfs.c:1991
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x44f/0x500 fs/namespace.c:1149
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1156
 task_work_run+0x127/0x190 kernel/task_work.c:188
 ptrace_notify+0x230/0x270 kernel/signal.c:2404
 ptrace_report_syscall include/linux/tracehook.h:66 [inline]
 tracehook_report_syscall_exit include/linux/tracehook.h:130 [inline]
 arch_syscall_exit_tracehook include/linux/entry-common.h:297 [inline]
 syscall_exit_work+0x87/0x160 kernel/entry/common.c:265
 syscall_exit_to_user_mode_prepare+0x1c/0x20 kernel/entry/common.c:292
 __syscall_exit_to_user_mode_work kernel/entry/common.c:297 [inline]
 syscall_exit_to_user_mode+0xd/0x30 kernel/entry/common.c:310
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f76d893a2b7
Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 d4 17 09 00 00 00 00 00 eb 96 e8 81 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe81f8dec8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f76d893a2b7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe81f8df80
RBP: 00007ffe81f8df80 R08: 00007ffe81f8ef80 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe81f8f070
R13: 0000555573330760 R14: 431bde82d7b634db R15: 00007ffe81f90100
 </TASK>
Modules linked in:
---[ end trace f585d822a528f4b0 ]---
RIP: 0010:may_delete+0x727/0x730 fs/namei.c:2941
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 82 fe ff ff 48 89 df e8 4a 28 f5 ff e9 75 fe ff ff e8 c0 a7 b5 ff 0f 0b e8 b9 a7 b5 ff <0f> 0b 0f 1f 80 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 a1 a7
RSP: 0018:ffffc900007dfbc8 EFLAGS: 00010293
RAX: ffffffff81b433a7 RBX: ffff888111ed2990 RCX: ffff88810ac32800
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc900007dfc20 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520000fbf58 R12: 1ffff110223da532
R13: 0000000000000001 R14: ffff888120c5c8b0 R15: dffffc0000000000
FS:  00005555733273c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555733407d8 CR3: 0000000121e7c000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (8943):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/10/13 01:17 android13-5.15-lts d6c8aee048e0 745a967f .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2026/09/05 08:51 android13-5.15-lts e9b8a6529ffa 4f7b22a0 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2026/08/19 18:25 android13-5.15-lts bbd17eb595bb 1e72964b .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2026/06/26 12:19 android13-5.15-lts c85054db4618 7ff32d8b .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2026/05/19 04:13 android13-5.15-lts 05eea940894a 9f74d399 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2026/04/26 10:43 android13-5.15-lts b7e7bcb07972 9c2d0995 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2026/02/26 16:05 android13-5.15-lts e714749f59d3 ffa54287 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2026/01/23 05:53 android13-5.15-lts 00b50d06692d 82c9c083 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2026/01/09 08:57 android13-5.15-lts 050dc55b0457 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2025/10/11 07:12 android13-5.15-lts bce84c40a40b ff1712fe .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2025/10/01 09:57 android13-5.15-lts 2bbc293701f8 65a0eece .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-android-5-15 kernel BUG in may_delete
2025/08/09 18:51 android13-5.15-lts f32b52534f1d 32a0e5ed .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2025/07/15 00:27 android13-5.15-lts eabc268e4fb2 d8fc7335 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2025/05/23 03:43 android13-5.15-lts 56993594bfa4 fa44301a .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2025/05/21 19:29 android13-5.15-lts 56993594bfa4 dc5d3808 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2025/04/01 13:36 android13-5.15-lts 5e1b899f19c3 36d76a97 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-android-5-15 kernel BUG in may_delete
2024/12/22 05:58 android13-5.15-lts b4bd207b0380 d7f584ee .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/12/22 05:28 android13-5.15-lts b4bd207b0380 d7f584ee .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/12/22 02:38 android13-5.15-lts b4bd207b0380 d7f584ee .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/12/22 01:38 android13-5.15-lts b4bd207b0380 d7f584ee .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/12/22 00:18 android13-5.15-lts b4bd207b0380 d7f584ee .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/12/21 19:37 android13-5.15-lts b4bd207b0380 d7f584ee .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/12/21 18:19 android13-5.15-lts b4bd207b0380 d7f584ee .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/12/21 17:04 android13-5.15-lts b4bd207b0380 d7f584ee .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/12/21 12:28 android13-5.15-lts b4bd207b0380 d7f584ee .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/12/21 06:28 android13-5.15-lts b4bd207b0380 d7f584ee .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/12/20 21:48 android13-5.15-lts b4bd207b0380 0f61b415 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/12/20 18:42 android13-5.15-lts b4bd207b0380 0f61b415 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/12/20 17:12 android13-5.15-lts b4bd207b0380 0f61b415 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/10/23 07:33 android13-5.15-lts 5e4635681cf1 15fa2979 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/07/13 21:14 android13-5.15-lts db06c48ab67e eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2024/04/03 23:03 android13-5.15-lts 993bed180178 51c4dcff .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-15 kernel BUG in may_delete
2026/11/04 11:54 android13-5.15-lts 2316d138a3c3 5af5b6c6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/04 10:07 android13-5.15-lts 2316d138a3c3 5af5b6c6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/04 07:52 android13-5.15-lts 2316d138a3c3 5af5b6c6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/04 02:47 android13-5.15-lts 2316d138a3c3 5af5b6c6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/04 02:19 android13-5.15-lts 2316d138a3c3 e2d35131 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/04 00:56 android13-5.15-lts 2316d138a3c3 e2d35131 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 23:32 android13-5.15-lts 2316d138a3c3 e2d35131 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 22:12 android13-5.15-lts 2316d138a3c3 e2d35131 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 20:08 android13-5.15-lts 2316d138a3c3 e2d35131 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 18:55 android13-5.15-lts 2316d138a3c3 e2d35131 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 16:46 android13-5.15-lts 2316d138a3c3 e2d35131 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 16:46 android13-5.15-lts 2316d138a3c3 e2d35131 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 15:27 android13-5.15-lts 2316d138a3c3 e2d35131 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 12:24 android13-5.15-lts 2316d138a3c3 e2d35131 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 12:07 android13-5.15-lts 2316d138a3c3 e2d35131 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 10:54 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 10:28 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 09:28 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 08:12 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 06:39 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 05:23 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 04:21 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 03:18 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 03:01 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 01:44 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/03 00:17 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 23:21 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 22:14 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 20:46 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 18:48 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 17:41 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 13:56 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 12:54 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 10:58 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 10:29 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 10:13 android13-5.15-lts 2316d138a3c3 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 09:08 android13-5.15-lts 2316d138a3c3 25a0ae84 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 07:03 android13-5.15-lts 2316d138a3c3 25a0ae84 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 04:59 android13-5.15-lts 2316d138a3c3 25a0ae84 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 04:26 android13-5.15-lts 2316d138a3c3 25a0ae84 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 03:07 android13-5.15-lts 2316d138a3c3 25a0ae84 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 02:02 android13-5.15-lts 2316d138a3c3 25a0ae84 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2026/11/02 01:00 android13-5.15-lts 2316d138a3c3 25a0ae84 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
2024/04/03 22:37 android13-5.15-lts 993bed180178 51c4dcff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 kernel BUG in may_delete
* Struck through repros no longer work on HEAD.