INFO: task hung in mall_destroy_work

Status: auto-obsoleted due to no activity on 2026/06/29 01:33
Subsystems: net
Labels: prio:normal
[Documentation on labels]
First crash: 137d, last: 137d
▶ ▼ ✨ AI Jobs (1)
ID Workflow Result Correct Bug Created Started Finished Revision
e25be390 assessment-security DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ❌ UserNamespace: ✅ VMGuestTrigger: ❌ VMHostTrigger: ❌ ❓ INFO: task hung in mall_destroy_work 2026/05/17 16:44 2026/05/17 16:44 2026/05/17 17:35 de5aae85

Sample crash report:
INFO: task kworker/u8:4:24338 blocked for more than 150 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:4    state:D stack:22464 pid:24338 tgid:24338 ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: tc_filter_workqueue mall_destroy_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5298 [inline]
 __schedule+0x15dd/0x52d0 kernel/sched/core.c:6911
 __schedule_loop kernel/sched/core.c:6993 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7008
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7065
 __mutex_lock_common kernel/locking/mutex.c:692 [inline]
 __mutex_lock+0x7fe/0x1300 kernel/locking/mutex.c:776
 mall_destroy_work+0x16/0x30 net/sched/cls_matchall.c:63
 process_one_work kernel/workqueue.c:3276 [inline]
 process_scheduled_works+0xb6e/0x18c0 kernel/workqueue.c:3359

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/03/31 01:30 net ddc748a391dd d0af506e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in mall_destroy_work
* Struck through repros no longer work on HEAD.