syzbot


INFO: task hung in devinet_ioctl (3)

Status: upstream: reported on 2024/05/24 20:35
Reported-by: syzbot+82cf1a90cb2764a85399@syzkaller.appspotmail.com
First crash: 24d, last: 2d21h
Similar bugs (10)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 INFO: task hung in devinet_ioctl 1 436d 436d 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 265d 265d 0/3 auto-obsoleted due to no activity on 2024/01/05 10:55
upstream INFO: task hung in devinet_ioctl (2) net 27 863d 993d 0/27 closed as invalid on 2022/02/07 19:19
upstream INFO: task hung in devinet_ioctl net 1 2068d 2068d 0/27 auto-closed as invalid on 2019/04/18 15:55
linux-5.15 INFO: task hung in devinet_ioctl (2) 3 120d 133d 0/3 auto-obsoleted due to no activity on 2024/05/28 21:09
upstream INFO: task hung in devinet_ioctl (3) net 825 99d 748d 0/27 closed as invalid on 2024/03/11 20:24
linux-5.15 INFO: task hung in devinet_ioctl (3) 3 7d12h 20d 0/3 upstream: reported on 2024/05/28 22:03
upstream INFO: task hung in devinet_ioctl (4) net 5 98d 98d 26/27 fixed on 2024/04/12 18:02
upstream INFO: task hung in devinet_ioctl (5) net 44 15h09m 5d01h 0/27 upstream: reported on 2024/06/13 18:48
linux-5.15 INFO: task hung in devinet_ioctl 1 345d 345d 0/3 auto-obsoleted due to no activity on 2023/10/17 09:29

Sample crash report:
INFO: task dhcpcd:3216 blocked for more than 143 seconds.
      Not tainted 6.1.93-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd          state:D stack:20744 pid:3216  ppid:3215   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0x142d/0x4550 kernel/sched/core.c:6558
 schedule+0xbf/0x180 kernel/sched/core.c:6634
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747
 devinet_ioctl+0x2a5/0x1b20 net/ipv4/devinet.c:1070
 inet_ioctl+0x32d/0x400 net/ipv4/af_inet.c:1010
 sock_do_ioctl+0x152/0x450 net/socket.c:1204
 sock_ioctl+0x47f/0x770 net/socket.c:1321
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fef5df4cd49
RSP: 002b:00007fff1b7c5a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fef5de7e6c0 RCX: 00007fef5df4cd49
RDX: 00007fff1b7d5c68 RSI: 0000000000008914 RDI: 0000000000000010
RBP: 00007fff1b7e5e28 R08: 00007fff1b7d5c28 R09: 00007fff1b7d5bd8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff1b7d5c68 R14: 0000000000000028 R15: 0000000000008914
 </TASK>
INFO: task kworker/1:7:3619 blocked for more than 143 seconds.
      Not tainted 6.1.93-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/15 22:33 linux-6.1.y ae9f2a70d69e f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: task hung in devinet_ioctl
2024/05/24 20:35 linux-6.1.y 4078fa637fcd a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: task hung in devinet_ioctl
* Struck through repros no longer work on HEAD.