syzbot


INFO: task hung in evdev_release

Status: auto-closed as invalid on 2019/10/25 08:43
Reported-by: syzbot+c3601a65dab4c6f3c808@syzkaller.appspotmail.com
First crash: 1872d, last: 1872d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in evdev_release input syz done error 14 638d 2071d 0/27 auto-obsoleted due to no activity on 2023/01/16 18:18

Sample crash report:
INFO: task syz-executor.1:3382 blocked for more than 140 seconds.
      Not tainted 4.14.115+ #64
[10210]     0 10210    18146     8762      24       3        0             0 syz-executor.4
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[10212]     0 10212    18113     8760      24       3        0             0 syz-executor.4
[10213]     0 10213    18113     8760      24       3        0             0 syz-executor.4
syz-executor.1  D28576  3382   1867 0x80000006
Call Trace:
[10214]     0 10214    18113     8760      24       3        0             0 syz-executor.4
[10215]     0 10215    18113     8760      24       3        0             0 syz-executor.4
[10216]     0 10216    18113     8760      24       3        0             0 syz-executor.4
 schedule+0x92/0x1c0 kernel/sched/core.c:3498
 schedule_timeout+0x736/0xe80 kernel/time/timer.c:1721
[10217]     0 10217    18113     8760      24       3        0             0 syz-executor.4
[10218]     0 10218    18113     8760      24       3        0             0 syz-executor.4
[10219]     0 10219    18113     8760      24       3        0             0 syz-executor.4
[10221]     0 10221    18113     8760      24       3        0             0 syz-executor.4
 do_wait_for_common kernel/sched/completion.c:91 [inline]
 __wait_for_common kernel/sched/completion.c:112 [inline]
 wait_for_common+0x29c/0x470 kernel/sched/completion.c:123
 __wait_rcu_gp+0x235/0x2f0 kernel/rcu/update.c:413
[10222]     0 10222    18113     8760      24       3        0             0 syz-executor.4
[10224]     0 10224    18113     8760      24       3        0             0 syz-executor.4
[10225]     0 10225    18146     8762      24       3        0             0 syz-executor.4
 synchronize_rcu.part.0+0xc1/0xd0 kernel/rcu/tree_plugin.h:764
[10226]     0 10226    18113     8760      24       3        0             0 syz-executor.4
[10228]     0 10228    18113     8760      24       3        0             0 syz-executor.4
[10229]     0 10229    18113     8760      24       3        0             0 syz-executor.4
 evdev_release+0xa2/0x1a0 drivers/input/evdev.c:475
 __fput+0x25e/0x700 fs/file_table.c:210
 task_work_run+0x118/0x190 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x903/0x2960 kernel/exit.c:874
[10230]     0 10230    18113     8760      24       3        0             0 syz-executor.4
[10231]     0 10231    18113     8760      24       3        0             0 syz-executor.4
[10232]     0 10232    18113     8760      24       3        0             0 syz-executor.4
[10233]     0 10233    18113     8760      24       3        0             0 syz-executor.4
[10235]     0 10235    18113     8760      24       3        0             0 syz-executor.4
[10236]     0 10236    18113     8760      24       3        0             0 syz-executor.4
[10237]     0 10237    18113     8760      24       3        0             0 syz-executor.4
[10238]     0 10238    18146     8762      24       3        0             0 syz-executor.4
[10239]     0 10239    18113     8760      24       3        0             0 syz-executor.4
[10240]     0 10240    18113     8760      24       3        0             0 syz-executor.4
[10241]     0 10241    18146     8762      24       3        0             0 syz-executor.4
[10242]     0 10242    18113     8760      24       3        0             0 syz-executor.4
INFO: task kworker/1:0:14722 blocked for more than 140 seconds.
[10243]     0 10243    18113     8760      24       3        0             0 syz-executor.4
[10244]     0 10244    18113     8760      24       3        0             0 syz-executor.4
      Not tainted 4.14.115+ #64
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/1:0     D27736 14722      2 0x80000000
Workqueue: events xfrm_state_gc_task
[10245]     0 10245    18113     8760      24       3        0             0 syz-executor.4
Call Trace:
[10246]     0 10246    18146     8762      24       3        0             0 syz-executor.4
 schedule+0x92/0x1c0 kernel/sched/core.c:3498
[10247]     0 10247    18113     8760      24       3        0             0 syz-executor.4
[10248]     0 10248    18113     8760      24       3        0             0 syz-executor.4
[10249]     0 10249    18113     8760      24       3        0             0 syz-executor.4
 schedule_timeout+0x736/0xe80 kernel/time/timer.c:1721
 do_wait_for_common kernel/sched/completion.c:91 [inline]
 __wait_for_common kernel/sched/completion.c:112 [inline]
 wait_for_common+0x29c/0x470 kernel/sched/completion.c:123
[10250]     0 10250    18113     8760      24       3        0             0 syz-executor.4
[10251]     0 10251    18113     8760      24       3        0             0 syz-executor.4

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/05/03 03:40 android-4.14 b5123fd47340 e9039493 .config console log report ci-android-414-kasan-gce-root
* Struck through repros no longer work on HEAD.