INFO: task hung in nl802154_pre

INFO: task hung in nl802154_pre_doit

Status: upstream: reported on 2024/06/14 00:14
Reported-by: syzbot+9d58fd872bd5f241751d@syzkaller.appspotmail.com
First crash: 5d18h, last: 5d18h

▶ ▼ Similar bugs (2)

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: task hung in nl802154_pre_doit wpan				1	720d	720d	0/27	auto-closed as invalid on 2022/09/28 14:08
linux-6.1	INFO: task hung in nl802154_pre_doit				2	2d11h	11d	0/3	upstream: reported on 2024/06/08 14:40

Sample crash report:

INFO: task syz-executor.3:6484 blocked for more than 143 seconds.
      Not tainted 5.15.160-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:26328 pid: 6484 ppid:  3536 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518
 __mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 nl802154_pre_doit+0xb1/0xa80 net/ieee802154/nl802154.c:2169
 genl_family_rcv_msg_doit net/netlink/genetlink.c:726 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
 genl_rcv_msg+0xf6a/0x14a0 net/netlink/genetlink.c:792
 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2508
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:803

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/06/14 00:13	linux-5.15.y	c61bd26ae81a	a9616ff5	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	INFO: task hung in nl802154_pre_doit

* ~~Struck through~~ repros no longer work on HEAD.