INFO: task hung in vlan_ioctl

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-6.1	INFO: task hung in vlan_ioctl_handler (3)	1				1	63d	63d	0/3	upstream: reported on 2026/03/02 21:40
linux-5.15	INFO: task hung in vlan_ioctl_handler (2)	1				6	634d	708d	0/3	auto-obsoleted due to no activity on 2024/11/16 16:16
upstream	INFO: task can't die in vlan_ioctl_handler net	1	syz	error	error	178	23d	1435d	0/29	upstream: reported syz repro on 2022/05/30 07:14
linux-5.15	INFO: task hung in vlan_ioctl_handler	1				2	937d	977d	0/3	auto-obsoleted due to no activity on 2024/01/18 16:24
linux-6.1	INFO: task hung in vlan_ioctl_handler (2)	1				1	512d	512d	0/3	auto-obsoleted due to no activity on 2025/03/18 20:20

INFO: task dhcpcd:3217 blocked for more than 143 seconds. Not tainted 6.1.91-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:24248 pid:3217 ppid:1 flags:0x00004002 Call Trace: <TASK> context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747 vlan_ioctl_handler+0x114/0x980 net/8021q/vlan.c:553 sock_ioctl+0x53c/0x770 net/socket.c:1285 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f42d7d79d49

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Assets (help?)	Manager	Title
2024/05/23 19:56	linux-6.1.y	4078fa637fcd	4c2072ee	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan	INFO: task hung in vlan_ioctl_handler
2024/02/17 17:14	linux-6.1.y	8b4118fabd6e	578f7538	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan-perf	INFO: task hung in vlan_ioctl_handler
2024/01/25 03:05	linux-6.1.y	8fd7f4462453	1e153dc8	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan	INFO: task hung in vlan_ioctl_handler

Crashes (3):