syzbot


WARNING in l2cap_chan_del

Status: upstream: reported on 2024/03/17 15:15
Subsystems: bluetooth
[Documentation on labels]
Reported-by: syzbot+3272785b7a1fc9b510f6@syzkaller.appspotmail.com
First crash: 252d, last: 4h07m
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly bluetooth report (Nov 2024) 0 (1) 2024/11/15 14:41
[syzbot] [bluetooth?] WARNING in l2cap_chan_del 0 (1) 2024/03/17 15:15
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in l2cap_chan_del 1 43d 43d 0/3 upstream: reported on 2024/10/08 12:44
linux-5.15 WARNING in l2cap_chan_del 1 387d 387d 0/3 auto-obsoleted due to no activity on 2024/02/07 22:44
linux-5.15 WARNING in l2cap_chan_del (2) 1 140d 140d 0/3 auto-obsoleted due to no activity on 2024/10/11 21:12

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5920 at kernel/workqueue.c:2257 __queue_work+0xcd3/0xf50 kernel/workqueue.c:2256
Modules linked in:
CPU: 0 UID: 0 PID: 5920 Comm: kworker/0:5 Not tainted 6.12.0-rc7-syzkaller-00042-gf1b785f4c787 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: events l2cap_chan_timeout
RIP: 0010:__queue_work+0xcd3/0xf50 kernel/workqueue.c:2256
Code: ff e8 b1 ad 37 00 90 0f 0b 90 e9 1e fd ff ff e8 a3 ad 37 00 eb 13 e8 9c ad 37 00 eb 0c e8 95 ad 37 00 eb 05 e8 8e ad 37 00 90 <0f> 0b 90 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc
RSP: 0018:ffffc900041478e8 EFLAGS: 00010093
RAX: ffffffff815d3c22 RBX: ffff88801ac94008 RCX: ffff88802dc30000
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: 0000000000000020 R08: ffffffff81602c69 R09: 0000000000000000
R10: ffffc900041479c0 R11: fffff52000828f39 R12: ffff88807e5e4000
R13: ffff88807e5e41c0 R14: dffffc0000000000 R15: 0000000000000008
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020404030 CR3: 000000004eb5c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 00000000e08e000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 queue_delayed_work_on+0x1ca/0x390 kernel/workqueue.c:2552
 l2cap_chan_del+0x291/0x5d0 net/bluetooth/l2cap_core.c:674
 l2cap_chan_close+0x38b/0x9f0
 l2cap_chan_timeout+0x142/0x360 net/bluetooth/l2cap_core.c:435
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (46):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/14 03:02 upstream f1b785f4c787 a8c99394 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in l2cap_chan_del
2024/11/12 00:51 upstream 2d5404caa8c7 97fe5517 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in l2cap_chan_del
2024/11/07 03:27 upstream 7758b206117d df3dc63b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in l2cap_chan_del
2024/10/25 17:07 upstream ae90f6a6170d 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in l2cap_chan_del
2024/09/27 15:40 upstream 075dbe9f6e3c 2b1784d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in l2cap_chan_del
2024/08/30 21:43 upstream 20371ba12063 f885a8ff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in l2cap_chan_del
2024/08/06 14:09 upstream b446a2dae984 e1bdb00a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in l2cap_chan_del
2024/07/18 05:34 upstream b1bc554e009e 03114f55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in l2cap_chan_del
2024/06/15 23:51 upstream 2ccbdf43d5e7 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in l2cap_chan_del
2024/04/10 21:05 upstream fe46a7dd189e 4320ec32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in l2cap_chan_del
2024/10/23 10:46 upstream c2ee9f594da8 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in l2cap_chan_del
2024/09/18 07:20 upstream 2f27fce67173 c673ca06 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in l2cap_chan_del
2024/09/12 07:34 upstream 7c6a3a65ace7 d94c83d8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in l2cap_chan_del
2024/09/09 21:57 upstream bc83b4d1f086 dd9c7e97 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in l2cap_chan_del
2024/09/02 08:58 upstream c9f016e72b5c 1eda0d14 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in l2cap_chan_del
2024/07/28 23:03 upstream 5437f30d3458 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in l2cap_chan_del
2024/07/09 07:24 upstream 4376e966ecb7 bc23a442 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in l2cap_chan_del
2024/11/18 19:43 upstream adc218676eef e7bb5d6e .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in l2cap_chan_del
2024/11/06 20:56 upstream 7758b206117d 7b852900 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in l2cap_chan_del
2024/10/30 09:18 upstream c1e939a21eb1 66aeb999 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in l2cap_chan_del
2024/09/29 04:36 upstream 3efc57369a0c ba29ff75 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in l2cap_chan_del
2024/09/28 06:27 upstream e477dba5442c 440b26ec .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in l2cap_chan_del
2024/08/28 23:25 upstream 928f79a188aa ef3de9e8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in l2cap_chan_del
2024/07/17 19:29 upstream 51835949dda3 877a6ab1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in l2cap_chan_del
2024/07/11 22:27 upstream 9d9a2f29aefd 3cf1187a .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in l2cap_chan_del
2024/06/05 18:39 upstream 71d7b52cc33b c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in l2cap_chan_del
2024/11/13 23:55 upstream f1b785f4c787 4dfba277 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in l2cap_chan_del
2024/11/05 21:28 upstream 2e1b3cc9d7f7 da38b4c9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in l2cap_chan_del
2024/07/08 10:13 upstream 256abd8e550c 7ca8bbea .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in l2cap_chan_del
2024/03/13 15:10 upstream b0546776ad3f f919f202 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in l2cap_chan_del
2024/11/17 01:42 net 8ffade77b633 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in l2cap_chan_del
2024/11/11 05:06 net 252e01e68241 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in l2cap_chan_del
2024/11/04 02:49 net 3b557be89fc6 f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in l2cap_chan_del
2024/11/03 14:31 net b2183187c5fd f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in l2cap_chan_del
2024/11/02 19:41 net b2183187c5fd f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in l2cap_chan_del
2024/07/13 19:17 net 528dd46d0fc3 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in l2cap_chan_del
2024/11/21 02:41 net-next dd7207838d38 4fca1650 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in l2cap_chan_del
2024/11/12 12:07 net-next 80b6f094756f 75bb1b32 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in l2cap_chan_del
2024/11/11 20:50 net-next a885a6b2d37e 97fe5517 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in l2cap_chan_del
2024/11/09 11:59 net-next 4861333b4217 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in l2cap_chan_del
2024/11/09 09:31 net-next 4861333b4217 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in l2cap_chan_del
2024/11/08 04:41 net-next 2a6f99ee1a80 c069283c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in l2cap_chan_del
2024/10/30 10:02 net-next b62607870b29 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in l2cap_chan_del
2024/11/05 21:10 linux-next 850f22c42f4b 3a465482 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in l2cap_chan_del
2024/06/08 06:50 linux-next d35b2284e966 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in l2cap_chan_del
* Struck through repros no longer work on HEAD.