syzbot


WARNING in remove_proc_entry

Status: auto-obsoleted due to no activity on 2024/12/25 11:45
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+099450d667e01e20e560@syzkaller.appspotmail.com
First crash: 131d, last: 97d
Fix bisection: the issue occurs on the latest tested release (bisect log)
  
Bug presence (2)
Date Name Commit Repro Result
2024/09/15 upstream (ToT) 98f7e32f20d2 C [report] WARNING in remove_proc_entry
2024/10/31 upstream (ToT) 0fc810ae3ae1 C Didn't crash
Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in remove_proc_entry 145 97d 131d 0/3 auto-obsoleted due to no activity on 2024/12/25 12:24
upstream WARNING in remove_proc_entry (5) scsi C 158 676d 718d 22/28 fixed on 2023/06/08 14:41
upstream WARNING in remove_proc_entry (4) net 1 1149d 1149d 0/28 closed as invalid on 2021/12/14 20:02
linux-4.19 WARNING in remove_proc_entry C error 4 795d 817d 0/1 upstream: reported C repro on 2022/10/28 02:13
upstream WARNING in remove_proc_entry netfilter 1 2374d 2374d 0/28 closed as invalid on 2018/09/05 12:51
upstream WARNING in remove_proc_entry (3) nfs net 1 1288d 1284d 0/28 auto-closed as invalid on 2021/11/10 16:53
upstream WARNING in remove_proc_entry (2) net 6 1953d 2253d 0/28 auto-closed as invalid on 2020/01/15 15:54
upstream WARNING in remove_proc_entry (6) can C done 377 110d 139d 28/28 fixed on 2024/10/22 11:57

Sample crash report:
------------[ cut here ]------------
name '46927'
WARNING: CPU: 0 PID: 7534 at fs/proc/generic.c:712 remove_proc_entry+0x2e1/0x5c0 fs/proc/generic.c:712
Modules linked in:
CPU: 0 PID: 7534 Comm: syz.0.913 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:remove_proc_entry+0x2e1/0x5c0 fs/proc/generic.c:712
Code: 3f 86 ff eb 05 e8 0f 3f 86 ff 48 8b 5c 24 10 48 c7 c7 c0 b9 a4 8c e8 5e d3 43 08 48 c7 c7 a0 3e 99 8a 48 89 de e8 cf e8 51 ff <0f> 0b 48 8b 44 24 18 48 c7 44 24 40 0e 36 e0 45 49 c7 04 07 00 00
RSP: 0018:ffffc90003587c20 EFLAGS: 00010246
RAX: badc8cf39603eb00 RBX: ffff8880293ee560 RCX: ffff888026631dc0
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90003587d10 R08: ffffffff81668a3c R09: ffffed10172067a8
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88804b232a00
R13: 0000000000000005 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000555578d8d500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fee9905f2d8 CR3: 000000004d9f3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bcm_release+0x244/0x860 net/can/bcm.c:1531
 __sock_release net/socket.c:649 [inline]
 sock_close+0xcd/0x230 net/socket.c:1336
 __fput+0x3fe/0x8e0 fs/file_table.c:280
 task_work_run+0x129/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5607dd6ff9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc6868cd78 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f5607f90a80 RCX: 00007f5607dd6ff9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f5607f90a80 R08: 00007f5607f7b000 R09: 00007ffc6868d06f
R10: 00000000003ffd30 R11: 0000000000000246 R12: 0000000000066672
R13: 00007ffc6868ce80 R14: 0000000000000032 R15: ffffffffffffffff
 </TASK>

Crashes (229):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/16 11:44 linux-5.15.y 3a5928702e71 bde2d81c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/10/15 20:19 linux-5.15.y 3a5928702e71 7eb57b4a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/10/13 04:40 linux-5.15.y 3a5928702e71 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/10/12 08:20 linux-5.15.y 3a5928702e71 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/10/11 03:31 linux-5.15.y 3a5928702e71 8fbfc0c8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/10/07 19:23 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/10/06 17:48 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/10/06 11:59 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/10/06 10:55 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/10/05 03:23 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/10/04 08:11 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/10/02 02:07 linux-5.15.y 3a5928702e71 ea2b66a6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/09/30 02:29 linux-5.15.y 3a5928702e71 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/09/29 14:38 linux-5.15.y 3a5928702e71 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/09/29 01:04 linux-5.15.y 3a5928702e71 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/09/28 21:22 linux-5.15.y 3a5928702e71 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/09/28 08:38 linux-5.15.y 3a5928702e71 440b26ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/09/28 04:39 linux-5.15.y 3a5928702e71 440b26ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/09/15 19:21 linux-5.15.y 3a5928702e71 08d8a733 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/09/12 15:07 linux-5.15.y 3a5928702e71 60e1a995 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in remove_proc_entry
2024/10/16 07:32 linux-5.15.y 3a5928702e71 bde2d81c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/15 18:15 linux-5.15.y 3a5928702e71 7eb57b4a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/15 18:12 linux-5.15.y 3a5928702e71 7eb57b4a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/15 06:26 linux-5.15.y 3a5928702e71 b01b6661 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/12 06:50 linux-5.15.y 3a5928702e71 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/11 20:43 linux-5.15.y 3a5928702e71 cd942402 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/11 00:51 linux-5.15.y 3a5928702e71 8fbfc0c8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/10 11:46 linux-5.15.y 3a5928702e71 0278d004 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/10 00:08 linux-5.15.y 3a5928702e71 56fb2cb7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/07 23:30 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/07 17:17 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/07 07:49 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/06 10:44 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/05 21:55 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/05 11:39 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/05 01:06 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/04 20:27 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/04 01:25 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/02 21:24 linux-5.15.y 3a5928702e71 02f9582a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/10/02 04:12 linux-5.15.y 3a5928702e71 ea2b66a6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/09/29 22:52 linux-5.15.y 3a5928702e71 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/09/29 19:59 linux-5.15.y 3a5928702e71 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/09/29 05:07 linux-5.15.y 3a5928702e71 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/09/29 02:46 linux-5.15.y 3a5928702e71 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/09/28 20:17 linux-5.15.y 3a5928702e71 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/09/28 19:09 linux-5.15.y 3a5928702e71 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/09/28 09:41 linux-5.15.y 3a5928702e71 440b26ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
2024/09/28 09:39 linux-5.15.y 3a5928702e71 440b26ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in remove_proc_entry
* Struck through repros no longer work on HEAD.