syzbot


WARNING in l2cap_send_disconn_req

Status: upstream: reported on 2024/06/16 18:00
Subsystems: bluetooth
[Documentation on labels]
Reported-by: syzbot+e70cc8721ff61d6bebda@syzkaller.appspotmail.com
First crash: 30d, last: 30d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [bluetooth?] WARNING in l2cap_send_disconn_req 0 (1) 2024/06/16 18:00

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 9 at kernel/workqueue.c:2281 __queue_work+0xc5e/0xee0 kernel/workqueue.c:2280
Modules linked in:
CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.10.0-rc3-syzkaller-00021-g2ef5971ff345 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: events l2cap_chan_timeout
RIP: 0010:__queue_work+0xc5e/0xee0 kernel/workqueue.c:2280
Code: ff e8 46 83 36 00 90 0f 0b 90 e9 20 fd ff ff e8 38 83 36 00 eb 13 e8 31 83 36 00 eb 0c e8 2a 83 36 00 eb 05 e8 23 83 36 00 90 <0f> 0b 90 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d e9 17 9d 50 0a
RSP: 0018:ffffc900000e7870 EFLAGS: 00010093
RAX: ffffffff815fa3dd RBX: ffff888015090008 RCX: ffff888016eb8000
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: 0000000000000020 R08: ffffffff81628b19 R09: ffffc900000e7940
R10: dffffc0000000000 R11: fffff5200001cf29 R12: ffff8880245d49c0
R13: dffffc0000000000 R14: ffff8880245d4800 R15: 0000000000000008
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020aa3000 CR3: 000000005e458000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 queue_work_on+0x1c2/0x380 kernel/workqueue.c:2410
 l2cap_send_disconn_req+0x28e/0x440 net/bluetooth/l2cap_core.c:1487
 l2cap_chan_close+0x378/0x9f0 net/bluetooth/l2cap_core.c:826
 l2cap_chan_timeout+0x142/0x360 net/bluetooth/l2cap_core.c:435
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/12 17:54 upstream 2ef5971ff345 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in l2cap_send_disconn_req
* Struck through repros no longer work on HEAD.