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INFO: task hung in inet_rtm_deladdr

Status: auto-obsoleted due to no activity on 2025/05/08 06:06
Subsystems: net
[Documentation on labels]
First crash: 263d, last: 195d

Sample crash report:
INFO: task dhcpcd:5501 blocked for more than 144 seconds.
      Not tainted 6.14.0-rc1-syzkaller-00081-gbb066fe812d6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd          state:D stack:20352 pid:5501  tgid:5501  ppid:5500   task_flags:0x400140 flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0x190e/0x4c90 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6856
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6913
 __mutex_lock_common kernel/locking/mutex.c:662 [inline]
 __mutex_lock+0x817/0x1010 kernel/locking/mutex.c:730
 rtnl_net_lock include/linux/rtnetlink.h:129 [inline]
 inet_rtm_deladdr+0x1a1/0x7b0 net/ipv4/devinet.c:679
 rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6911
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543
 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1348
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1892
 sock_sendmsg_nosec net/socket.c:713 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:728
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2568
 ___sys_sendmsg net/socket.c:2622 [inline]
 __sys_sendmsg+0x269/0x350 net/socket.c:2654

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/07 05:58 upstream bb066fe812d6 53657d1b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in inet_rtm_deladdr
2025/01/24 18:03 upstream bc8198dc7ebc 521b0ce3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in inet_rtm_deladdr
2025/01/23 18:58 upstream 7004a2e46d16 f6a35ef3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in inet_rtm_deladdr
2024/12/26 16:38 upstream 9b2ffa6148b1 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in inet_rtm_deladdr
2025/01/23 20:06 upstream d0d106a2bd21 f6a35ef3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in inet_rtm_deladdr
2024/11/30 23:20 net 16ed454515a4 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in inet_rtm_deladdr
* Struck through repros no longer work on HEAD.