INFO: task hung in ipv6_route

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	INFO: task hung in ipv6_route_ioctl	1				1	1718d	1718d	0/1	auto-closed as invalid on 2022/03/28 22:32
upstream	INFO: task hung in ipv6_route_ioctl net	1				2	2135d	2137d	0/29	auto-closed as invalid on 2021/01/06 04:59
upstream	INFO: task hung in ipv6_route_ioctl (2) net	1				1	2014d	2014d	0/29	auto-closed as invalid on 2021/05/07 00:43
linux-4.19	INFO: task hung in ipv6_route_ioctl (2)	1				1	1293d	1293d	0/1	upstream: reported on 2023/01/28 02:21
upstream	INFO: task hung in rtnetlink_rcv_msg net	1	syz, C	inconclusive	inconclusive	1970	765d	2729d	26/29	fixed on 2024/07/09 19:14

INFO: task syz-executor.4:3732 blocked for more than 143 seconds. Not tainted 5.15.161-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:28024 pid: 3732 ppid: 3525 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5030 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376 schedule+0x11b/0x1f0 kernel/sched/core.c:6459 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518 __mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743 ipv6_route_ioctl+0x4c7/0x860 net/ipv6/route.c:4487 inet6_ioctl+0x1e1/0x240 net/ipv6/af_inet6.c:583 sock_do_ioctl+0x11d/0x5a0 net/socket.c:1140 sock_ioctl+0x47f/0x770 net/socket.c:1257

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/06/19 04:27	linux-5.15.y	4878aadf2d15	41b7e219	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	INFO: task hung in ipv6_route_ioctl
2024/06/17 16:52	linux-5.15.y	4878aadf2d15	1f11cfd7	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	INFO: task hung in ipv6_route_ioctl

Crashes (2):