INFO: task hung in fib6_rules_net_exit

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
linux-6.1	INFO: task hung in fib6_rules_net_exit_batch	1	2	694d	702d	0/3	auto-obsoleted due to no activity on 2024/09/12 02:11
upstream	INFO: task hung in fib6_rules_net_exit_batch (4) net	1	1	355d	355d	0/29	auto-obsoleted due to no activity on 2025/08/07 06:49
upstream	INFO: task hung in fib6_rules_net_exit_batch (2) net	1	10	681d	705d	0/29	auto-obsoleted due to no activity on 2024/08/06 23:39
upstream	INFO: task hung in fib6_rules_net_exit_batch net	1	1	1055d	1055d	0/29	closed as invalid on 2023/09/07 14:58
upstream	INFO: task hung in fib6_rules_net_exit_batch (3) net	1	8	449d	585d	0/29	auto-obsoleted due to no activity on 2025/05/05 09:06

INFO: task syz-executor:17776 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:25176 pid:17776 tgid:17776 ppid:1 task_flags:0x400140 flags:0x00080003 Call Trace: <TASK> context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1190/0x5de0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7083 __mutex_lock_common kernel/locking/mutex.c:676 [inline] __mutex_lock+0x818/0x1060 kernel/locking/mutex.c:760 fib6_rules_net_exit_batch+0x15/0xe0 net/ipv6/fib6_rules.c:641 ops_exit_list net/core/net_namespace.c:205 [inline] ops_undo_list+0x363/0xab0 net/core/net_namespace.c:252 setup_net+0x1e2/0x390 net/core/net_namespace.c:461 copy_net_ns+0x2f8/0x690 net/core/net_namespace.c:580 create_new_namespaces+0x3ea/0xa90 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0xc0/0x1f0 kernel/nsproxy.c:218 ksys_unshare+0x45b/0xa40 kernel/fork.c:3129

Crashes (4):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Assets (help?)	Manager	Title
2025/11/23 21:20	upstream	d13f3ac64efb	4fb8ef37	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	INFO: task hung in fib6_rules_net_exit_batch
2025/08/30 13:08	upstream	fb679c832b64	807a3b61	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-smack-root	INFO: task hung in fib6_rules_net_exit_batch
2025/08/26 05:55	upstream	b6add54ba618	bf27483f	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-smack-root	INFO: task hung in fib6_rules_net_exit_batch
2026/01/03 06:12	net-next	dbf8fe85a16a	d6526ea3	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-net-kasan-gce	INFO: task hung in fib6_rules_net_exit_batch

Crashes (4):