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: 233d, last: 2d12h
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 53d 233d 0/2 upstream: reported C repro on 2024/04/03 23:36
android-5-15 kernel BUG in may_delete origin:downstream C 984 12h19m 233d 0/2 upstream: reported C repro on 2024/04/03 23:06
android-5-10 kernel BUG in may_delete C 2431 12h58m 233d 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 warning (device loop0): ext4_update_dynamic_rev:1086: updating to rev 1 because of new feature flag, running e2fsck is recommended
------------[ cut here ]------------
kernel BUG at fs/namei.c:2956!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 299 Comm: syz-executor422 Not tainted 6.1.99-syzkaller-00070-g4dc2498506e6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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 a6 6e f3 ff e9 72 fe ff ff e8 ac 2a ac ff 0f 0b e8 a5 2a ac ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 91 2a ac ff 4c 8d
RSP: 0018:ffffc90000d57a38 EFLAGS: 00010293
RAX: ffffffff81c9789b RBX: ffff888123c6f580 RCX: ffff888109746540
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000d57aa0 R08: ffffffff81c9722f R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888123c6f330
R13: 1ffff1102478de66 R14: ffff8881005873c8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056285d92b108 CR3: 00000001205e2000 CR4: 00000000003506a0
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:1995
 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:877
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1027
 __do_sys_exit_group kernel/exit.c:1038 [inline]
 __se_sys_exit_group kernel/exit.c:1036 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036
 x64_sys_call+0x610/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f72b0b96f09
Code: Unable to access opcode bytes at 0x7f72b0b96edf.
RSP: 002b:00007fff3ce56088 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f72b0b96f09
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f72b0c13390 R08: ffffffffffffffb8 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f72b0c13390
R13: 0000000000000000 R14: 00007f72b0c14100 R15: 00007f72b0b651c0
 </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 a6 6e f3 ff e9 72 fe ff ff e8 ac 2a ac ff 0f 0b e8 a5 2a ac ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 91 2a ac ff 4c 8d
RSP: 0018:ffffc90000d57a38 EFLAGS: 00010293
RAX: ffffffff81c9789b RBX: ffff888123c6f580 RCX: ffff888109746540
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000d57aa0 R08: ffffffff81c9722f R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888123c6f330
R13: 1ffff1102478de66 R14: ffff8881005873c8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f72b0be14f8 CR3: 000000000700f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1087):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/23 19:32 android14-6.1 4dc2498506e6 15fa2979 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/10/23 06:46 android14-6.1 00f19bd9ed42 15fa2979 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-6-1 kernel BUG in may_delete
2024/07/15 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
2024/11/20 21:50 android14-6.1 5b095ade1229 4fca1650 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/11/12 07:13 android14-6.1 96ad4e759ff4 75bb1b32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/11/04 15:34 android14-6.1 fadb08b36671 f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/29 16:30 android14-6.1 29d66b390296 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/28 15:51 android14-6.1 3165cd1163da 9efb3cc7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/28 10:45 android14-6.1 3165cd1163da 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/28 08:00 android14-6.1 a874ed06eb34 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/28 06:41 android14-6.1 a874ed06eb34 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/28 06:14 android14-6.1 a874ed06eb34 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/28 03:21 android14-6.1 a874ed06eb34 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/28 00:43 android14-6.1 a874ed06eb34 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/27 22:52 android14-6.1 a874ed06eb34 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/27 11:57 android14-6.1 a874ed06eb34 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/27 08:50 android14-6.1 a874ed06eb34 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/26 02:34 android14-6.1 a874ed06eb34 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/25 13:41 android14-6.1 a874ed06eb34 045e728d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/25 13:36 android14-6.1 a874ed06eb34 045e728d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/25 01:57 android14-6.1 5722a4dd8b27 c79b8ca5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/24 11:06 android14-6.1 5722a4dd8b27 0d144d1a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/24 01:41 android14-6.1 5bdef2817ade 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/24 01:41 android14-6.1 5bdef2817ade 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/23 18:40 android14-6.1 4dc2498506e6 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/23 12:28 android14-6.1 4dc2498506e6 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/23 04:45 android14-6.1 00f19bd9ed42 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/23 03:28 android14-6.1 00f19bd9ed42 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/22 20:17 android14-6.1 00f19bd9ed42 a93682b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/22 08:14 android14-6.1 5e1f4bb11f0d a93682b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/22 01:34 android14-6.1 5e1f4bb11f0d f1e4447c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/21 18:26 android14-6.1 add3d68602a0 f1e4447c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/21 12:20 android14-6.1 add3d68602a0 f1e4447c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/21 12:20 android14-6.1 add3d68602a0 f1e4447c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/21 11:13 android14-6.1 add3d68602a0 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/21 08:19 android14-6.1 1fe91f863a7f cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/21 06:41 android14-6.1 1fe91f863a7f cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/21 00:33 android14-6.1 1fe91f863a7f cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/20 18:02 android14-6.1 1fe91f863a7f cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/19 21:50 android14-6.1 1fe91f863a7f cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/18 22:26 android14-6.1 1fe91f863a7f cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/18 22:25 android14-6.1 1fe91f863a7f cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/18 20:35 android14-6.1 299cc91948f1 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/17 20:32 android14-6.1 299cc91948f1 666f77ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/17 16:54 android14-6.1 27021bed8099 666f77ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 kernel BUG in may_delete
2024/10/17 07:15 android14-6.1 27021bed8099 666f77ed .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.