syzbot


WARNING in remove_proc_entry

Status: upstream: reported on 2024/09/12 15:07
Reported-by: syzbot+1be1782f4e756c1f1c93@syzkaller.appspotmail.com
First crash: 99d, last: 65d
Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in remove_proc_entry origin:upstream C inconclusive 229 66d 99d 0/3 upstream: reported C repro on 2024/09/12 15:07
upstream WARNING in remove_proc_entry (5) scsi C 158 644d 687d 22/28 fixed on 2023/06/08 14:41
upstream WARNING in remove_proc_entry (4) net 1 1117d 1117d 0/28 closed as invalid on 2021/12/14 20:02
linux-4.19 WARNING in remove_proc_entry C error 4 763d 785d 0/1 upstream: reported C repro on 2022/10/28 02:13
upstream WARNING in remove_proc_entry netfilter 1 2343d 2343d 0/28 closed as invalid on 2018/09/05 12:51
upstream WARNING in remove_proc_entry (3) nfs net 1 1256d 1252d 0/28 auto-closed as invalid on 2021/11/10 16:53
upstream WARNING in remove_proc_entry (2) net 6 1921d 2221d 0/28 auto-closed as invalid on 2020/01/15 15:54
upstream WARNING in remove_proc_entry (6) can C done 377 78d 107d 28/28 fixed on 2024/10/22 11:57

Sample crash report:
------------[ cut here ]------------
name '52380'
WARNING: CPU: 0 PID: 8435 at fs/proc/generic.c:712 remove_proc_entry+0x2e1/0x5c0 fs/proc/generic.c:712
Modules linked in:
CPU: 0 PID: 8435 Comm: syz.2.1279 Not tainted 6.1.112-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: f4 73 ff eb 05 e8 cf f4 73 ff 48 8b 5c 24 10 48 c7 c7 20 a8 47 8d e8 7e 5e 9a 08 48 c7 c7 60 f0 1b 8b 48 89 de e8 6f e7 3b 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:ffffc9000d5ffb80 EFLAGS: 00010246
RAX: fbd25618f071a200 RBX: ffff888057c05558 RCX: ffff88802b698000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000d5ffc78 R08: ffffffff8152a48e R09: ffffed10171e4f1c
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88805c841a00
R13: 0000000000000005 R14: 0000000000000000 R15: dffffc0000000000
FS:  000055556a5c0500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f49c18656c0 CR3: 0000000077ab0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bcm_release+0x244/0x870 net/can/bcm.c:1536
 __sock_release net/socket.c:654 [inline]
 sock_close+0xcd/0x230 net/socket.c:1400
 __fput+0x3f6/0x8d0 fs/file_table.c:320
 task_work_run+0x246/0x300 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f98d037dff9
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:00007ffeef4a9c58 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f98d0537a80 RCX: 00007f98d037dff9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f98d0537a80 R08: 0000000000000006 R09: 00007ffeef4a9f4f
R10: 00000000003ffd1c R11: 0000000000000246 R12: 0000000000068ccb
R13: 00007ffeef4a9d60 R14: 0000000000000032 R15: ffffffffffffffff
 </TASK>

Crashes (145):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/16 09:38 linux-6.1.y aa4cd140bba5 bde2d81c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/10/16 09:38 linux-6.1.y aa4cd140bba5 bde2d81c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/10/08 20:10 linux-6.1.y aa4cd140bba5 402f1df0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/10/07 14:10 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/10/07 02:06 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/10/06 19:20 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/10/04 12:36 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/10/02 01:52 linux-6.1.y aa4cd140bba5 ea2b66a6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/10/01 05:28 linux-6.1.y aa4cd140bba5 bbd4e0a4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/09/29 03:06 linux-6.1.y e526b12bf916 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/09/28 23:47 linux-6.1.y e526b12bf916 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/09/27 07:52 linux-6.1.y e526b12bf916 9314348a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/09/26 13:53 linux-6.1.y e526b12bf916 0d19f247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/09/26 11:18 linux-6.1.y e526b12bf916 0d19f247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/09/25 20:05 linux-6.1.y e526b12bf916 349a68c4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/09/25 20:05 linux-6.1.y e526b12bf916 349a68c4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/09/12 15:07 linux-6.1.y 5f55cad62cc9 60e1a995 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in remove_proc_entry
2024/10/16 12:23 linux-6.1.y aa4cd140bba5 bde2d81c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/15 20:36 linux-6.1.y aa4cd140bba5 7eb57b4a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/15 07:41 linux-6.1.y aa4cd140bba5 b01b6661 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/12 09:44 linux-6.1.y aa4cd140bba5 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/11 04:41 linux-6.1.y aa4cd140bba5 8fbfc0c8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/10 13:55 linux-6.1.y aa4cd140bba5 0278d004 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/08 00:02 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/07 20:52 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/07 18:11 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/07 12:34 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/07 10:01 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/07 05:38 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/07 04:06 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/07 01:25 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/06 22:35 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/04 04:37 linux-6.1.y aa4cd140bba5 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/10/01 03:46 linux-6.1.y aa4cd140bba5 bbd4e0a4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/09/29 01:11 linux-6.1.y e526b12bf916 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/09/28 22:46 linux-6.1.y e526b12bf916 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/09/28 06:27 linux-6.1.y e526b12bf916 440b26ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/09/27 06:25 linux-6.1.y e526b12bf916 9314348a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/09/27 05:21 linux-6.1.y e526b12bf916 9314348a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/09/26 15:00 linux-6.1.y e526b12bf916 0d19f247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/09/26 12:24 linux-6.1.y e526b12bf916 0d19f247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/09/26 09:42 linux-6.1.y e526b12bf916 0d19f247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/09/26 09:41 linux-6.1.y e526b12bf916 0d19f247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/09/26 09:06 linux-6.1.y e526b12bf916 0d19f247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
2024/09/26 09:06 linux-6.1.y e526b12bf916 0d19f247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in remove_proc_entry
* Struck through repros no longer work on HEAD.