WARNING in hci_conn

Title	Replies (including bot)	Last reply
[syzbot] [bluetooth?] WARNING in hci_conn_drop (2)	0 (1)	2025/05/08 22:03

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[syzbot] [bluetooth?] WARNING in hci_conn_drop (2)

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2025/05/08 22:03

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	WARNING in hci_conn_drop bluetooth	-1	1	578d	574d	0/29	auto-obsoleted due to no activity on 2025/04/06 16:23
linux-5.15	WARNING in hci_conn_drop	-1	3	658d	749d	0/3	auto-obsoleted due to no activity on 2025/01/16 13:59
upstream	WARNING in hci_conn_drop (3) bluetooth	-1	2	266d	298d	0/29	auto-obsoleted due to no activity on 2026/02/12 14:34
linux-6.1	WARNING in hci_conn_drop	-1	1	763d	763d	0/3	auto-obsoleted due to no activity on 2024/10/03 23:48
upstream	WARNING in hci_conn_drop (4) prio:high bluetooth	-1	4	60d	74d	0/29	upstream: reported on 2026/05/15 12:05

------------[ cut here ]------------ workqueue: cannot queue hci_conn_timeout on wq hci4 WARNING: CPU: 1 PID: 26 at kernel/workqueue.c:2258 __queue_work+0xe38/0x1230 kernel/workqueue.c:2256 Modules linked in: CPU: 1 UID: 0 PID: 26 Comm: kworker/1:1 Not tainted 6.15.0-rc4-syzkaller-ge0f4c8dd9d2d #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: events l2cap_chan_timeout pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xe38/0x1230 kernel/workqueue.c:2256 lr : __queue_work+0xe38/0x1230 kernel/workqueue.c:2256 sp : ffff8000977277c0 x29: ffff800097727810 x28: 1fffe0001aa28400 x27: ffff0000d53712c0 x26: ffff0000ee275000 x25: dfff800000000000 x24: 0000000000000008 x23: ffff0000ee2751c0 x22: 0000000004208060 x21: 1fffe0001dc4ea38 x20: ffff800092804000 x19: ffff0000d4f38960 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008ada5d6c x15: 0000000000000001 x14: 1fffe00036711ae2 x13: 0000000000000000 x12: 0000000000000000 x11: ffff600036711ae3 x10: 0000000000ff0100 x9 : 321ee84465be0000 x8 : 321ee84465be0000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800097727118 x4 : ffff80008f3f4fa0 x3 : ffff8000807ab99c x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: __queue_work+0xe38/0x1230 kernel/workqueue.c:2256 (P) __queue_delayed_work+0xfc/0x2c8 kernel/workqueue.c:2509 queue_delayed_work_on+0xe4/0x194 kernel/workqueue.c:2561 queue_delayed_work include/linux/workqueue.h:677 [inline] hci_conn_drop+0x174/0x280 include/net/bluetooth/hci_core.h:1663 l2cap_chan_del+0x228/0x470 net/bluetooth/l2cap_core.c:671 l2cap_chan_close+0x424/0x684 net/bluetooth/l2cap_core.c:-1 l2cap_chan_timeout+0x120/0x280 net/bluetooth/l2cap_core.c:431 process_one_work+0x7e8/0x156c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3400 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 irq event stamp: 104354 hardirqs last enabled at (104353): [<ffff8000804152dc>] __cancel_work+0x158/0x218 kernel/workqueue.c:4344 hardirqs last disabled at (104354): [<ffff80008041090c>] queue_delayed_work_on+0x54/0x194 kernel/workqueue.c:2557 softirqs last enabled at (104348): [<ffff800089026b4c>] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (104348): [<ffff800089026b4c>] release_sock+0x14c/0x1ac net/core/sock.c:3726 softirqs last disabled at (104346): [<ffff800089026a34>] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (104346): [<ffff800089026a34>] release_sock+0x34/0x1ac net/core/sock.c:3715 ---[ end trace 0000000000000000 ]---

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2025/05/04 21:53	git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci	e0f4c8dd9d2d	b0714e37	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-arm64	WARNING in hci_conn_drop

Crashes (1):

Assets (help?)