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INFO: task hung in ip_tunnel_init_net (2)

Status: auto-obsoleted due to no activity on 2023/07/18 20:51
Subsystems: net
[Documentation on labels]
First crash: 773d, last: 650d
Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 INFO: task hung in ip_tunnel_init_net (2) 1 54d 54d 0/3 upstream: reported on 2024/12/05 13:31
linux-5.15 INFO: task hung in ip_tunnel_init_net 1 74d 74d 0/3 upstream: reported on 2024/11/15 13:12
upstream INFO: task hung in ip_tunnel_init_net (3) netfilter 41 77d 109d 28/28 fixed on 2024/11/12 23:31
linux-6.1 INFO: task hung in ip_tunnel_init_net 2 202d 238d 0/3 auto-obsoleted due to no activity on 2024/10/18 03:42
linux-4.19 INFO: task hung in ip_tunnel_init_net 18 1104d 1144d 0/1 auto-closed as invalid on 2022/05/20 09:22
upstream INFO: task hung in ip_tunnel_init_net net 2 1543d 1605d 0/28 auto-closed as invalid on 2021/02/05 10:58
linux-4.19 INFO: task hung in ip_tunnel_init_net (2) 1 724d 724d 0/1 upstream: reported on 2023/02/05 00:06
upstream INFO: task can't die in ip_tunnel_init_net net 11 1197d 1198d 0/28 auto-closed as invalid on 2022/02/16 13:24

Sample crash report:
INFO: task syz-executor.2:14689 blocked for more than 143 seconds.
      Not tainted 6.2.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:26648 pid:14689 ppid:9422   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5293 [inline]
 __schedule+0xb8a/0x5450 kernel/sched/core.c:6606
 schedule+0xde/0x1b0 kernel/sched/core.c:6682
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6741
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
 ip_tunnel_init_net+0x2dd/0x9f0 net/ipv4/ip_tunnel.c:1072

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/01/22 16:14 upstream 2241ab53cbb5 559a440a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in ip_tunnel_init_net
2022/12/17 00:37 net-old 13e3c7793e2f 05494336 .config console log report info ci-upstream-net-this-kasan-gce INFO: task hung in ip_tunnel_init_net
2023/04/19 20:44 net-next 4e1951666248 a219f34e .config console log report info ci-upstream-net-kasan-gce INFO: task hung in ip_tunnel_init_net
* Struck through repros no longer work on HEAD.