INFO: task hung in __netlink_dump

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: task hung in __netlink_dump_start (2) net	1				5	1589d	1671d	0/29	closed as invalid on 2022/02/07 19:19
linux-4.19	INFO: task hung in __netlink_dump_start	1				1	2170d	2170d	0/1	auto-closed as invalid on 2020/10/04 12:25
upstream	INFO: task hung in __netlink_dump_start net	1				2	2039d	2053d	0/29	auto-closed as invalid on 2021/01/13 23:36
linux-5.15	INFO: task hung in __netlink_dump_start	1				20	555d	819d	0/3	auto-obsoleted due to no activity on 2025/02/16 07:38
linux-4.19	INFO: task hung in __netlink_dump_start (2)	1				1	1541d	1541d	0/1	auto-closed as invalid on 2022/06/25 14:03
upstream	INFO: task hung in rtnetlink_rcv_msg net	1	C	inconclusive	inconclusive	1970	677d	2640d	26/29	fixed on 2024/07/09 19:14
upstream	INFO: task hung in __netlink_dump_start (3) net	1				3	575d	600d	0/29	auto-obsoleted due to no activity on 2025/01/17 03:09
upstream	INFO: task hung in __netlink_dump_start (4) net	1				1	395d	395d	0/29	auto-obsoleted due to no activity on 2025/07/16 06:45
linux-6.1	INFO: task hung in __netlink_dump_start	1				16	694d	839d	0/3	auto-obsoleted due to no activity on 2024/09/29 18:06
linux-6.1	INFO: task hung in __netlink_dump_start (2) origin:lts-only	1	syz		inconclusive	12	290d	593d	0/3	upstream: reported syz repro on 2024/10/01 03:35
upstream	INFO: task hung in __netlink_dump_start (5) net	1				3	96d	150d	0/29	auto-obsoleted due to no activity on 2026/05/11 09:51

INFO: task dhcpcd:3855 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:25744 pid: 3855 ppid: 1 flags:0x00004202 Call Trace: <TASK> context_switch kernel/sched/core.c:5049 [inline] __schedule+0x11ef/0x43c0 kernel/sched/core.c:6395 schedule+0x11b/0x1e0 kernel/sched/core.c:6478 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6537 __mutex_lock_common+0xcfc/0x2400 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743 __netlink_dump_start+0x11f/0x700 net/netlink/af_netlink.c:2352 netlink_dump_start include/linux/netlink.h:258 [inline] rtnetlink_rcv_msg+0xdd9/0xf30 net/core/rtnetlink.c:5643 netlink_rcv_skb+0x1f5/0x440 net/netlink/af_netlink.c:2507 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x774/0x920 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x8ba/0xbe0 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:706 [inline] __sock_sendmsg net/socket.c:718 [inline] ____sys_sendmsg+0x5b7/0x8f0 net/socket.c:2445 ___sys_sendmsg+0x236/0x2e0 net/socket.c:2499 __sys_sendmsg net/socket.c:2528 [inline] __do_sys_sendmsg net/socket.c:2537 [inline] __se_sys_sendmsg+0x1af/0x290 net/socket.c:2535 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7faf01f6f407 RSP: 002b:00007fff016ec8d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007faf01ee5740 RCX: 00007faf01f6f407 RDX: 0000000000000000 RSI: 00007fff016ec950 RDI: 000000000000000c RBP: 00007fff016f0b70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 000055f1f719fc60 R13: 000000000000000c R14: 00007fff016f0b30 R15: 00007fff016f0b70 </TASK>

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2026/04/18 21:39	linux-5.15.y	b9d57c40a767	303e2802	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	INFO: task hung in __netlink_dump_start

Crashes (1):

Assets (help?)