INFO: task hung in cangw_pernet_exit

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: task hung in cangw_pernet_exit_batch (2) can	1				16	1210d	1468d	0/29	auto-obsoleted due to no activity on 2023/10/19 02:51
upstream	INFO: task hung in cangw_pernet_exit_batch (3) can	1				33	856d	872d	26/29	fixed on 2024/07/09 19:14
upstream	INFO: task hung in cangw_pernet_exit_batch (4) can	1				24	683d	818d	0/29	auto-obsoleted due to no activity on 2025/03/20 17:55
upstream	INFO: task hung in cangw_pernet_exit_batch can	1				11	1585d	1598d	0/29	auto-obsoleted due to no activity on 2022/10/09 07:17
linux-6.1	INFO: task hung in cangw_pernet_exit_batch (2)	1				18	877d	904d	0/3	auto-obsoleted due to no activity on 2024/08/27 12:37
linux-6.1	INFO: task hung in cangw_pernet_exit_batch	1				2	1256d	1275d	0/3	auto-obsoleted due to no activity on 2023/09/13 14:11
upstream	INFO: task hung in cangw_pernet_exit_batch (5) prio:normal can	1	syz	error	error	5	219d	328d	0/29	auto-obsoleted due to no activity on 2026/07/15 20:45

INFO: task syz-executor:11810 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:25256 pid:11810 ppid:1 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5393 [inline] __schedule+0x156f/0x4720 kernel/sched/core.c:6722 schedule+0xbd/0x170 kernel/sched/core.c:6796 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6855 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x689/0xce0 kernel/locking/mutex.c:747 cangw_pernet_exit_batch+0x20/0x90 net/can/gw.c:1288 ops_exit_list net/core/net_namespace.c:178 [inline] setup_net+0x85a/0xa20 net/core/net_namespace.c:375 copy_net_ns+0x361/0x530 net/core/net_namespace.c:524 create_new_namespaces+0x3ce/0x700 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0x11a/0x160 kernel/nsproxy.c:228

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2026/11/04 05:54	linux-6.6.y	b5a1dc3ad482	5af5b6c6	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	INFO: task hung in cangw_pernet_exit_batch
2026/10/21 11:29	linux-6.6.y	0aebf2870d53	61c200c7	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	INFO: task hung in cangw_pernet_exit_batch

Crashes (2):