INFO: task hung in cfg80211_wiphy_work (3)

Status: auto-obsoleted due to no activity on 2026/08/12 10:08
Subsystems: wireless
Labels: prio:low
[Documentation on labels]
First crash: 91d, last: 91d
✨ AI Jobs (1)
ID Workflow Result Correct Bug Created Started Finished Revision
a5d26ec2 assessment-security DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ❌ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ❌ INFO: task hung in cfg80211_wiphy_work (3) 2026/05/30 04:34 2026/05/30 04:34 2026/05/30 06:32 6b4a8443
Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in cfg80211_wiphy_work (2) wireless 1 2 430d 449d 0/29 auto-obsoleted due to no activity on 2025/09/08 05:01
upstream INFO: task hung in cfg80211_wiphy_work wireless 1 3 658d 688d 0/29 auto-obsoleted due to no activity on 2025/01/22 12:16

Sample crash report:
INFO: task kworker/u8:3:48 blocked for more than 144 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:3    state:D stack:21208 pid:48    tgid:48    ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events_unbound cfg80211_wiphy_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1821/0x5740 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7283
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7340
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x7f7/0x1550 kernel/locking/mutex.c:820
 class_wiphy_constructor include/net/cfg80211.h:6645 [inline]
 cfg80211_wiphy_work+0xb4/0x460 net/wireless/core.c:499
 process_one_work kernel/workqueue.c:3302 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
INFO: task kworker/0:3:5362 blocked for more than 144 seconds.

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/05/14 09:59 upstream e1914add2799 6ccb967e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in cfg80211_wiphy_work
* Struck through repros no longer work on HEAD.