syzbot


WARNING: locking bug in process_one_work (3)

Status: auto-closed as invalid on 2022/01/04 13:32
Reported-by: syzbot+e777eed7b3936f302fe6@syzkaller.appspotmail.com
First crash: 312d, last: 312d
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING: locking bug in process_one_work (2) 1 442d 438d 0/23 auto-closed as invalid on 2021/08/28 09:26
upstream WARNING: locking bug in process_one_work 1 895d 891d 0/23 auto-closed as invalid on 2020/07/01 00:53

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1043 at kernel/locking/lockdep.c:897 look_up_lock_class+0x6a/0xd0 kernel/locking/lockdep.c:897
Modules linked in:
CPU: 0 PID: 1043 Comm: kworker/0:6 Not tainted 5.15.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: wg-crypt-wg1 wg_packet_encrypt_worker
RIP: 0010:look_up_lock_class+0x6a/0xd0 kernel/locking/lockdep.c:897
Code: 85 c0 75 0a eb 57 48 8b 00 48 85 c0 74 4f 48 39 70 40 75 f2 48 8b 4f 18 48 39 88 b0 00 00 00 74 0b 48 81 3f 40 f4 f0 8e 74 02 <0f> 0b 5d c3 9c 5a 80 e6 02 74 c2 e8 56 92 a0 fa 85 c0 74 1f 8b 05
RSP: 0018:ffffc90002ccfa08 EFLAGS: 00010002
RAX: ffffffff8fd62f80 RBX: ffffffff902598e0 RCX: 0000000000000000
RDX: 0000000000000046 RSI: ffffffff9054aac0 RDI: ffffc90002ccfdb0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90002ccfdb0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000ed2000 CR3: 0000000041239000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 register_lock_class+0xb7/0x10c0 kernel/locking/lockdep.c:1246
 __lock_acquire+0x105/0x54a0 kernel/locking/lockdep.c:4894
 lock_acquire kernel/locking/lockdep.c:5625 [inline]
 lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
 process_one_work+0x92e/0x16b0 kernel/workqueue.c:2273
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-bpf-next-kasan-gce 2021/10/06 13:31 bpf-next 32a16f6bfe51 0a63fd36 .config log report info WARNING: locking bug in process_one_work