syzbot


WARNING in l2cap_send_disconn_req

Status: upstream: reported on 2024/10/29 23:45
Reported-by: syzbot+0db216319b1eafb150dd@syzkaller.appspotmail.com
First crash: 40d, last: 40d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in l2cap_send_disconn_req bluetooth 1 179d 175d 0/28 auto-obsoleted due to no activity on 2024/09/20 17:55

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4856 at kernel/workqueue.c:1441 __queue_work+0xddc/0xf90
Modules linked in:
CPU: 0 PID: 4856 Comm: kworker/0:10 Not tainted 6.1.114-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events l2cap_chan_timeout
RIP: 0010:__queue_work+0xddc/0xf90 kernel/workqueue.c:1441
Code: 8b 3c 24 e8 c6 75 88 00 e9 d9 fc ff ff e8 1c f4 30 00 89 ee 48 c7 c7 80 99 1d 8d e8 8e 47 0b 03 e9 1e fc ff ff e8 04 f4 30 00 <0f> 0b 48 83 c4 50 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ee f3 30 00
RSP: 0018:ffffc90003657938 EFLAGS: 00010093
RAX: ffffffff81599f5c RBX: 00000000000b0012 RCX: ffff88802f3a3b80
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: 0000000000010000 R08: ffffffff815bf375 R09: ffffed100ebb29b5
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000200
R13: dffffc0000000000 R14: 0000000000000008 R15: ffff888057b32800
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020404030 CR3: 0000000020b03000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 queue_work_on+0x14b/0x250 kernel/workqueue.c:1548
 l2cap_send_disconn_req+0x2b8/0x510 net/bluetooth/l2cap_core.c:1648
 l2cap_chan_close+0x345/0x880 net/bluetooth/l2cap_core.c:857
 l2cap_chan_timeout+0x13e/0x2b0 net/bluetooth/l2cap_core.c:455
 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/29 23:45 linux-6.1.y 7ec6f9fa3d97 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in l2cap_send_disconn_req
* Struck through repros no longer work on HEAD.