syzbot


kernel BUG in may_delete

Status: upstream: reported C repro on 2024/04/03 23:51
Bug presence: origin:downstream
[Documentation on labels]
Reported-by: syzbot+292d0e141b92a314ddec@syzkaller.appspotmail.com
First crash: 192d, last: 1d16h
Bug presence (3)
Date Name Commit Repro Result
2024/04/04 android14-6.1 (ToT) ebcdb9dc211f C [report] kernel BUG in may_delete
2024/04/04 lts (merge base) 883d1a956208 C Didn't crash
2024/04/04 upstream (ToT) c85af715cac0 C Didn't crash
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-54 kernel BUG in may_delete C 34 13d 192d 0/2 upstream: reported C repro on 2024/04/03 23:36
android-5-15 kernel BUG in may_delete origin:downstream C 524 4d05h 192d 0/2 upstream: reported C repro on 2024/04/03 23:06
android-5-10 kernel BUG in may_delete C 354 4h50m 192d 0/2 upstream: reported C repro on 2024/04/04 00:03
Last patch testing requests (6)
Created Duration User Patch Repo Result
2024/08/06 19:35 24m retest repro android14-6.1 report log
2024/08/06 19:35 14m retest repro android14-6.1 report log
2024/08/06 19:35 13m retest repro android14-6.1 report log
2024/08/06 19:35 22m retest repro android14-6.1 report log
2024/08/06 19:35 17m retest repro android14-6.1 report log
2024/06/19 22:11 12m retest repro android14-6.1 report log

Sample crash report:
EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback.
ext4 filesystem being mounted at /file1 supports timestamps until 2038 (0x7fffffff)
------------[ cut here ]------------
kernel BUG at fs/namei.c:2956!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 296 Comm: syz-executor811 Not tainted 6.1.84-syzkaller-00005-g96d66062d076 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:may_delete+0x6eb/0x6f0 fs/namei.c:2956
Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 7f fe ff ff 4c 89 e7 e8 66 71 f3 ff e9 72 fe ff ff e8 cc 64 ac ff 0f 0b e8 c5 64 ac ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 b1 64 ac ff 4c 8d
RSP: 0018:ffffc90000ee7a58 EFLAGS: 00010293
RAX: ffffffff81c9210b RBX: ffff88812103c140 RCX: ffff88810955bcc0
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000ee7ac0 R08: ffffffff81c91a9f R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88812108eaa0
R13: 1ffff11024211d54 R14: ffff888100574050 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc34e791b8 CR3: 000000010e75a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vfs_rmdir+0x32/0x500 fs/namei.c:4172
 incfs_kill_sb+0x113/0x230 fs/incfs/vfs.c:1967
 deactivate_locked_super+0xad/0x110 fs/super.c:334
 deactivate_super+0xbe/0xf0 fs/super.c:365
 cleanup_mnt+0x485/0x510 fs/namespace.c:1186
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1193
 task_work_run+0x24d/0x2e0 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xbd5/0x2b80 kernel/exit.c:875
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1025
 __do_sys_exit_group kernel/exit.c:1036 [inline]
 __se_sys_exit_group kernel/exit.c:1034 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1034
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f82fcf97e09
Code: Unable to access opcode bytes at 0x7f82fcf97ddf.
RSP: 002b:00007ffc09d37628 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f82fcf97e09
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f82fd014370 R08: ffffffffffffffb8 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f82fd014370
R13: 0000000000000000 R14: 00007f82fd0150e0 R15: 00007f82fcf660d0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:may_delete+0x6eb/0x6f0 fs/namei.c:2956
Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 7f fe ff ff 4c 89 e7 e8 66 71 f3 ff e9 72 fe ff ff e8 cc 64 ac ff 0f 0b e8 c5 64 ac ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 b1 64 ac ff 4c 8d
RSP: 0018:ffffc90000ee7a58 EFLAGS: 00010293
RAX: ffffffff81c9210b RBX: ffff88812103c140 RCX: ffff88810955bcc0
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000ee7ac0 R08: ffffffff81c91a9f R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88812108eaa0
R13: 1ffff11024211d54 R14: ffff888100574050 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc34e791b8 CR3: 0000000006e0f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (892):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/07/15 00:17 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 23:47 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 23:20 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 22:59 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 22:30 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 22:00 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 21:31 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 20:58 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 20:36 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 20:12 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 19:45 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 19:10 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 18:35 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 17:58 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 17:19 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 16:43 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 16:03 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 15:26 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 14:51 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 14:10 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 13:30 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 12:47 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 12:04 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 11:20 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 10:35 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 09:42 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 08:52 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 08:05 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 07:19 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 06:32 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 05:53 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 05:06 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 04:17 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 03:31 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 02:38 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 01:48 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/14 00:55 android14-6.1 96d66062d076 eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/04/03 23:49 android14-6.1 af361f9a1066 51c4dcff .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/10/11 21:21 android14-6.1 d41d398db683 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/11 18:51 android14-6.1 d41d398db683 cd942402 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/11 09:11 android14-6.1 19e119d2d0fe cd942402 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/10 15:13 android14-6.1 19e119d2d0fe 8fbfc0c8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/10 15:11 android14-6.1 19e119d2d0fe 8fbfc0c8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/10 02:09 android14-6.1 19e119d2d0fe 0278d004 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/09 12:49 android14-6.1 80e851bf0d46 56fb2cb7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/09 09:07 android14-6.1 80e851bf0d46 402f1df0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/08 23:12 android14-6.1 8d298374716d 402f1df0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/08 14:14 android14-6.1 0e8b65e41ffd 402f1df0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/08 03:52 android14-6.1 0e8b65e41ffd 402f1df0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/07 16:53 android14-6.1 0e8b65e41ffd d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/07 16:53 android14-6.1 0e8b65e41ffd d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/07 14:05 android14-6.1 d4dab27b9d1c d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/06 17:15 android14-6.1 d4dab27b9d1c d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/06 13:05 android14-6.1 d4dab27b9d1c d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/04 07:57 android14-6.1 d4dab27b9d1c d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/03 15:03 android14-6.1 6f2e0215d71c d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/03 05:42 android14-6.1 1cdc168f1ef0 a4c7fd36 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/02 11:18 android14-6.1 1cdc168f1ef0 02f9582a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/02 11:14 android14-6.1 1cdc168f1ef0 02f9582a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/02 00:44 android14-6.1 1cdc168f1ef0 ea2b66a6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/01 11:20 android14-6.1 a43e7c2c12af ea2b66a6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/01 08:19 android14-6.1 a43e7c2c12af bbd4e0a4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/30 18:58 android14-6.1 5162f9a67b7d bbd4e0a4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/30 15:25 android14-6.1 110595418159 bbd4e0a4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/29 18:12 android14-6.1 110595418159 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/29 11:36 android14-6.1 110595418159 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/28 09:59 android14-6.1 110595418159 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/28 09:59 android14-6.1 110595418159 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/28 07:02 android14-6.1 110595418159 440b26ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/27 17:45 android14-6.1 5a912daf8731 440b26ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/27 11:38 android14-6.1 5a912daf8731 9314348a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/26 22:20 android14-6.1 bcc435d3749c 9314348a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/26 15:58 android14-6.1 9e167c1c27c5 9314348a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/26 15:57 android14-6.1 9e167c1c27c5 9314348a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/25 22:02 android14-6.1 9e167c1c27c5 0d19f247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/25 09:08 android14-6.1 03b93dc707ed 349a68c4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/24 21:23 android14-6.1 5c7d0d4f4a38 5643e0e9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/24 21:22 android14-6.1 5c7d0d4f4a38 5643e0e9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/24 17:25 android14-6.1 2cd8ac816de5 5643e0e9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/24 05:03 android14-6.1 2cd8ac816de5 89298aad .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/24 05:03 android14-6.1 2cd8ac816de5 89298aad .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/23 15:18 android14-6.1 41e1c6f93780 89298aad .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/09/23 09:48 android14-6.1 3b95e548676f 89298aad .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
* Struck through repros no longer work on HEAD.