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INFO: task hung in devinet_ioctl (3)

Status: auto-obsoleted due to no activity on 2024/09/19 07:29
Reported-by: syzbot+4cfb79a82cc00cac1e47@syzkaller.appspotmail.com
First crash: 785d, last: 772d
▶ ▼ Similar bugs (18)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in devinet_ioctl (7) net 1 31 484d 492d 0/29 closed as invalid on 2025/04/18 16:40
upstream INFO: task hung in devinet_ioctl (8) net 1 syz error 7 379d 411d 0/29 closed as invalid on 2025/07/31 08:04
linux-6.1 INFO: task hung in devinet_ioctl 1 1 1200d 1200d 0/3 auto-obsoleted due to no activity on 2023/08/07 17:54
linux-6.1 INFO: task hung in devinet_ioctl (2) 1 1 1030d 1030d 0/3 auto-obsoleted due to no activity on 2024/01/05 10:55
linux-6.1 INFO: task hung in devinet_ioctl (3) 1 3 719d 789d 0/3 auto-obsoleted due to no activity on 2024/11/11 06:30
upstream INFO: task hung in devinet_ioctl (2) net 1 27 1628d 1758d 0/29 closed as invalid on 2022/02/07 19:19
linux-6.1 INFO: task hung in devinet_ioctl (5) 1 1 423d 423d 0/3 auto-obsoleted due to no activity on 2025/09/03 12:59
linux-6.6 INFO: task hung in devinet_ioctl 1 2 104d 112d 0/2 auto-obsoleted due to no activity on 2026/07/18 18:19
linux-6.1 INFO: task hung in devinet_ioctl (4) 1 2 560d 563d 0/3 auto-obsoleted due to no activity on 2025/04/18 15:16
upstream INFO: task hung in devinet_ioctl net 1 1 2832d 2832d 0/29 auto-closed as invalid on 2019/04/18 15:55
linux-5.15 INFO: task hung in devinet_ioctl (2) 1 3 885d 898d 0/3 auto-obsoleted due to no activity on 2024/05/28 21:09
linux-5.15 INFO: task hung in devinet_ioctl (5) 1 1 2d21h 2d21h 0/3 upstream: reported on 2026/07/20 16:56
upstream INFO: task hung in devinet_ioctl (3) net 1 825 863d 1513d 0/29 closed as invalid on 2024/03/11 20:24
upstream INFO: task hung in devinet_ioctl (4) net 1 5 862d 863d 25/29 fixed on 2024/04/12 18:02
linux-6.1 INFO: task hung in devinet_ioctl (6) origin:lts-only 1 syz inconclusive 4 72d 312d 0/3 upstream: reported syz repro on 2025/09/13 16:51
linux-5.15 INFO: task hung in devinet_ioctl (4) 1 1 585d 585d 0/3 auto-obsoleted due to no activity on 2025/03/24 18:20
upstream INFO: task hung in devinet_ioctl (5) net 1 59 743d 769d 26/29 fixed on 2024/07/09 19:14
linux-5.15 INFO: task hung in devinet_ioctl 1 1 1110d 1110d 0/3 auto-obsoleted due to no activity on 2023/10/17 09:29

Sample crash report:
INFO: task syz-executor.4:3523 blocked for more than 143 seconds.
      Not tainted 5.15.160-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:20544 pid: 3523 ppid:     1 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
 devinet_ioctl+0x2a5/0x1b20 net/ipv4/devinet.c:1066
 inet_ioctl+0x32d/0x400 net/ipv4/af_inet.c:978
 sock_do_ioctl+0x11d/0x5a0 net/socket.c:1140
 sock_ioctl+0x47f/0x770 net/socket.c:1257

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/11 07:28 linux-5.15.y c61bd26ae81a b7d9eb04 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan INFO: task hung in devinet_ioctl
2024/05/31 17:24 linux-5.15.y c61bd26ae81a 0c378259 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan INFO: task hung in devinet_ioctl
2024/05/28 22:02 linux-5.15.y c61bd26ae81a 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan INFO: task hung in devinet_ioctl
* Struck through repros no longer work on HEAD.