INFO: task hung in do_ip

INFO: task hung in do_ip_setsockopt

Status: auto-closed as invalid on 2022/05/09 22:19
Reported-by: syzbot+2569886c62f4f20d8880@syzkaller.appspotmail.com
First crash: 831d, last: 831d

▶ ▼ Similar bugs (2)

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
android-414	INFO: task hung in do_ip_setsockopt				1	1820d	1820d	0/1	auto-closed as invalid on 2019/10/24 07:11
upstream	INFO: task hung in do_ip_setsockopt net				2	197d	203d	0/26	auto-obsoleted due to no activity on 2024/01/03 18:34

Sample crash report:

bridge0: port 2(bridge_slave_1) entered disabled state
bridge0: port 1(bridge_slave_0) entered disabled state
ieee802154 phy0 wpan0: encryption failed: -22
ieee802154 phy1 wpan1: encryption failed: -22
INFO: task syz-executor.1:29854 blocked for more than 140 seconds.
      Not tainted 4.19.211-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1  D29776 29854  25416 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619
 __mutex_lock_common kernel/locking/mutex.c:1016 [inline]
 __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078
 do_ip_setsockopt.constprop.0+0x11c/0x3ba0 net/ipv4/ip_sockglue.c:642

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2022/01/09 22:18	linux-4.19.y	3f8a27f9e27b	2ca0d385	.config	console log	report			info		ci2-linux-4-19	INFO: task hung in do_ip_setsockopt

* ~~Struck through~~ repros no longer work on HEAD.