[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.18' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 803.048878] hrtimer: interrupt took 54827 ns executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 1147.723990] INFO: task syz-executor538:13792 blocked for more than 140 seconds. [ 1147.734033] Not tainted 4.19.211-syzkaller #0 executing program [ 1147.782519] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1147.803901] syz-executor538 D28648 13792 8107 0x00000004 [ 1147.817721] Call Trace: [ 1147.820391] __schedule+0x887/0x2040 [ 1147.824156] ? io_schedule_timeout+0x140/0x140 [ 1147.830168] ? mark_held_locks+0xa6/0xf0 [ 1147.834301] ? rwsem_down_read_failed+0x20a/0x390 [ 1147.840188] schedule+0x8d/0x1b0 [ 1147.843618] rwsem_down_read_failed+0x20a/0x390 [ 1147.850966] ? rt_mutex_futex_unlock+0xf0/0xf0 [ 1147.861137] ? hrtimer_nanosleep+0x27f/0x570 [ 1147.871891] ? nanosleep_copyout+0x100/0x100 [ 1147.877155] call_rwsem_down_read_failed+0x14/0x30 [ 1147.882178] down_read+0x44/0x80 [ 1147.886872] ? __do_page_fault+0x97f/0xd60 [ 1147.891215] __do_page_fault+0x97f/0xd60 [ 1147.896628] ? page_fault+0x8/0x30 [ 1147.900290] ? trace_hardirqs_off_caller+0x6e/0x210 [ 1147.906622] ? spurious_fault+0x840/0x840 [ 1147.910908] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 1147.917193] ? page_fault+0x8/0x30 [ 1147.925740] page_fault+0x1e/0x30 [ 1147.933801] RIP: 0033:0x7f537017fd98 [ 1147.942248] Code: Bad RIP value. [ 1147.946457] RSP: 002b:00007ffc79cdc938 EFLAGS: 00010206 [ 1147.951981] RAX: 00007f53701b1bd0 RBX: 00007f53701b0198 RCX: 0000000000000001 [ 1147.960664] RDX: 00007f53700edb90 RSI: 0000000000000000 RDI: 00007f53701b1bd0 [ 1147.968873] RBP: 0000000000000000 R08: 0000000000000000 R09: 000000e1681d6a22 [ 1147.976995] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1147.984395] R13: 0000000000000001 R14: 00007f53701b7040 R15: 0000000000000001 [ 1147.995702] INFO: task syz-executor538:13796 blocked for more than 140 seconds. [ 1148.011054] Not tainted 4.19.211-syzkaller #0 [ 1148.023076] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1148.041327] syz-executor538 D27864 13796 8107 0x80000004 [ 1148.053826] Call Trace: [ 1148.062213] __schedule+0x887/0x2040 [ 1148.074840] ? io_schedule_timeout+0x140/0x140 [ 1148.091208] ? rwsem_down_read_failed+0x231/0x390 [ 1148.108377] ? rwsem_down_read_failed+0x20a/0x390 [ 1148.123402] schedule+0x8d/0x1b0 [ 1148.138668] rwsem_down_read_failed+0x20a/0x390 [ 1148.158999] ? rt_mutex_futex_unlock+0xf0/0xf0 [ 1148.179231] ? rcu_nmi_exit+0xb3/0x180 [ 1148.195486] ? retint_kernel+0x2d/0x2d [ 1148.214266] call_rwsem_down_read_failed+0x14/0x30 [ 1148.233783] down_read+0x44/0x80 [ 1148.250633] ? do_exit+0x6e4/0x2be0 [ 1148.265464] do_exit+0x6e4/0x2be0 [ 1148.282076] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 1148.300133] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1148.321664] ? rcu_nmi_exit+0xb3/0x180 [ 1148.336418] ? mm_update_next_owner+0x650/0x650 [ 1148.357834] ? retint_kernel+0x2d/0x2d [ 1148.372939] ? do_group_exit+0x57/0x310 [ 1148.390406] ? do_group_exit+0x65/0x310 [ 1148.408842] do_group_exit+0x125/0x310 [ 1148.421144] get_signal+0x3f2/0x1f70 [ 1148.434784] ? __mutex_unlock_slowpath+0xea/0x610 [ 1148.450125] ? wait_for_completion_io+0x10/0x10 [ 1148.464687] do_signal+0x8f/0x1670 [ 1148.478726] ? perf_ioctl+0x69/0x80 [ 1148.494142] ? do_vfs_ioctl+0x110/0x12e0 [ 1148.511679] ? setup_sigcontext+0x820/0x820 [ 1148.530598] ? ioctl_preallocate+0x200/0x200 [ 1148.548973] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1148.564361] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 1148.579490] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1148.594366] ? rcu_nmi_exit+0xb3/0x180 [ 1148.607637] ? retint_kernel+0x2d/0x2d [ 1148.624240] exit_to_usermode_loop+0x204/0x2a0 [ 1148.644981] do_syscall_64+0x538/0x620 [ 1148.661196] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1148.683184] RIP: 0033:0x7f537012abb9 [ 1148.694828] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 1148.774538] RSP: 002b:00007f53700dc318 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 1148.800598] RAX: fffffffffffffe00 RBX: 00007f53701b2408 RCX: 00007f537012abb9 [ 1148.824333] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f53701b2408 [ 1148.855066] RBP: 00007f53701b2400 R08: 0000000000000000 R09: 0000000000000000 [ 1148.885727] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5370180074 [ 1148.910927] R13: 00007ffc79cdc90f R14: 00007f53700dc400 R15: 0000000000022000 [ 1148.933982] INFO: task syz-executor538:13795 blocked for more than 140 seconds. [ 1148.957244] Not tainted 4.19.211-syzkaller #0 [ 1148.973473] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1149.001615] syz-executor538 D28536 13795 8110 0x00000004 [ 1149.025248] Call Trace: [ 1149.036839] __schedule+0x887/0x2040 [ 1149.051763] ? io_schedule_timeout+0x140/0x140 [ 1149.072034] ? mark_held_locks+0xa6/0xf0 [ 1149.089577] ? rwsem_down_read_failed+0x20a/0x390 [ 1149.104505] schedule+0x8d/0x1b0 [ 1149.116913] rwsem_down_read_failed+0x20a/0x390 [ 1149.130571] ? rt_mutex_futex_unlock+0xf0/0xf0 [ 1149.145298] ? hrtimer_nanosleep+0x27f/0x570 [ 1149.160923] ? nanosleep_copyout+0x100/0x100 [ 1149.174391] call_rwsem_down_read_failed+0x14/0x30 [ 1149.190579] down_read+0x44/0x80 [ 1149.204042] ? __do_page_fault+0x97f/0xd60 [ 1149.221754] __do_page_fault+0x97f/0xd60 [ 1149.239337] ? page_fault+0x8/0x30 [ 1149.255196] ? trace_hardirqs_off_caller+0x6e/0x210 [ 1149.276964] ? spurious_fault+0x840/0x840 [ 1149.294533] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 1149.309526] ? page_fault+0x8/0x30 [ 1149.320946] page_fault+0x1e/0x30 [ 1149.332271] RIP: 0033:0x7f537017fd98 [ 1149.343904] Code: Bad RIP value. [ 1149.355182] RSP: 002b:00007ffc79cdc938 EFLAGS: 00010206 [ 1149.371732] RAX: 00007f53701b1bd0 RBX: 00007f53701b0198 RCX: 0000000000000001 [ 1149.394652] RDX: 00007f53700edb90 RSI: 0000000000000000 RDI: 00007f53701b1bd0 [ 1149.425366] RBP: 0000000000000000 R08: 0000000000000000 R09: 000000e1681e8156 [ 1149.458232] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1149.488945] R13: 0000000000000001 R14: 00007f53701b7040 R15: 0000000000000001 [ 1149.511969] INFO: task syz-executor538:13798 blocked for more than 140 seconds. [ 1149.534854] Not tainted 4.19.211-syzkaller #0 [ 1149.551065] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1149.576933] syz-executor538 D28240 13798 8110 0x80000004 [ 1149.593784] Call Trace: [ 1149.606554] __schedule+0x887/0x2040 [ 1149.622566] ? io_schedule_timeout+0x140/0x140 [ 1149.641748] ? mark_held_locks+0xa6/0xf0 [ 1149.659303] ? rwsem_down_read_failed+0x20a/0x390 [ 1149.679781] schedule+0x8d/0x1b0 [ 1149.695382] rwsem_down_read_failed+0x20a/0x390 [ 1149.717634] ? rt_mutex_futex_unlock+0xf0/0xf0 [ 1149.736478] ? lock_acquire+0x170/0x3c0 [ 1149.753065] ? lock_downgrade+0x720/0x720 [ 1149.771532] call_rwsem_down_read_failed+0x14/0x30 [ 1149.794050] down_read+0x44/0x80 [ 1149.808433] ? do_exit+0x6e4/0x2be0 [ 1149.823281] do_exit+0x6e4/0x2be0 [ 1149.843345] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1149.862835] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 1149.883181] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1149.903039] ? mm_update_next_owner+0x650/0x650 [ 1149.924237] ? rcu_nmi_exit+0xb3/0x180 [ 1149.939865] ? retint_kernel+0x2d/0x2d [ 1149.957430] do_group_exit+0x125/0x310 [ 1149.974478] get_signal+0x3f2/0x1f70 [ 1149.992024] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1150.011973] do_signal+0x8f/0x1670 [ 1150.027882] ? setup_sigcontext+0x820/0x820 [ 1150.046766] ? _raw_spin_unlock_irq+0x50/0x80 [ 1150.064683] ? _raw_spin_unlock_irq+0x5a/0x80 [ 1150.084906] ? finish_task_switch+0x146/0x760 [ 1150.105507] ? finish_task_switch+0x118/0x760 [ 1150.124311] ? switch_mm_irqs_off+0x764/0x1340 [ 1150.143697] ? __se_sys_futex+0x28f/0x3b0 [ 1150.162127] ? __se_sys_futex+0x298/0x3b0 [ 1150.180569] ? do_futex+0x1880/0x1880 [ 1150.196436] ? exit_to_usermode_loop+0x36/0x2a0 [ 1150.216712] exit_to_usermode_loop+0x204/0x2a0 [ 1150.236914] do_syscall_64+0x538/0x620 [ 1150.254228] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1150.275100] RIP: 0033:0x7f537012abb9 [ 1150.292219] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 1150.352583] RSP: 002b:00007f53700dc318 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 1150.378365] RAX: fffffffffffffe00 RBX: 00007f53701b2408 RCX: 00007f537012abb9 [ 1150.402455] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f53701b2408 [ 1150.433205] RBP: 00007f53701b2400 R08: 0000000000000000 R09: 0000000000000000 [ 1150.464772] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5370180074 [ 1150.498428] R13: 00007ffc79cdc90f R14: 00007f53700dc400 R15: 0000000000022000 [ 1150.528730] [ 1150.528730] Showing all locks held in the system: [ 1150.555962] 1 lock held by khungtaskd/1570: [ 1150.573987] #0: 00000000727da4c1 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 1150.609827] 1 lock held by in:imklog/7848: [ 1150.628598] #0: 0000000015d1f375 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 1150.664486] 1 lock held by syz-executor538/13792: [ 1150.684777] #0: 00000000ec323841 (&mm->mmap_sem){++++}, at: __do_page_fault+0x97f/0xd60 [ 1150.712111] 1 lock held by syz-executor538/13796: [ 1150.728013] #0: 00000000ec323841 (&mm->mmap_sem){++++}, at: do_exit+0x6e4/0x2be0 [ 1150.753670] 1 lock held by syz-executor538/13803: [ 1150.769023] 1 lock held by syz-executor538/13795: [ 1150.787608] #0: 00000000da6ef7f5 (&mm->mmap_sem){++++}, at: __do_page_fault+0x97f/0xd60 [ 1150.818166] 1 lock held by syz-executor538/13798: [ 1150.839741] #0: 00000000da6ef7f5 (&mm->mmap_sem){++++}, at: do_exit+0x6e4/0x2be0 [ 1150.873045] 1 lock held by syz-executor538/13802: [ 1150.893677] 1 lock held by syz-executor538/29684: [ 1150.910200] #0: 0000000042a38533 (&mm->mmap_sem){++++}, at: __do_page_fault+0x97f/0xd60 [ 1150.936354] 1 lock held by syz-executor538/29692: [ 1150.952400] 1 lock held by syz-executor538/29685: [ 1150.968464] #0: 00000000561f0a96 (&mm->mmap_sem){++++}, at: __do_page_fault+0x97f/0xd60 [ 1150.995707] 1 lock held by syz-executor538/29693: [ 1151.015296] 1 lock held by syz-executor538/29688: [ 1151.034593] #0: 0000000063c90021 (&mm->mmap_sem){++++}, at: __do_page_fault+0x97f/0xd60 [ 1151.070030] 1 lock held by syz-executor538/29694: [ 1151.092030] 1 lock held by syz-executor538/29690: [ 1151.108120] #0: 00000000bfa00b28 (&mm->mmap_sem){++++}, at: __do_page_fault+0x97f/0xd60 [ 1151.134276] 1 lock held by syz-executor538/29695: [ 1151.150843] [ 1151.156334] ============================================= [ 1151.156334] [ 1151.180067] NMI backtrace for cpu 1 [ 1151.183753] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 1151.191194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1151.200542] Call Trace: [ 1151.203128] dump_stack+0x1fc/0x2ef [ 1151.206757] nmi_cpu_backtrace.cold+0x63/0xa2 [ 1151.211248] ? lapic_can_unplug_cpu+0x80/0x80 [ 1151.215742] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 1151.221019] watchdog+0x991/0xe60 [ 1151.224474] ? reset_hung_task_detector+0x30/0x30 [ 1151.229312] kthread+0x33f/0x460 [ 1151.232674] ? kthread_park+0x180/0x180 [ 1151.236651] ret_from_fork+0x24/0x30 [ 1151.240455] Sending NMI from CPU 1 to CPUs 0: [ 1151.245460] NMI backtrace for cpu 0 [ 1151.245466] CPU: 0 PID: 29692 Comm: syz-executor538 Not tainted 4.19.211-syzkaller #0 [ 1151.245472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1151.245476] RIP: 0010:lock_is_held_type+0xb8/0x210 [ 1151.245487] Code: fc ff df 48 89 c3 48 c7 c0 90 82 f1 89 48 c1 e8 03 80 3c 10 00 0f 85 4c 01 00 00 48 83 3d 0f cd a6 08 00 0f 84 e8 00 00 00 fa <66> 0f 1f 44 00 00 65 4c 8b 24 25 c0 df 01 00 49 8d bc 24 84 08 00 [ 1151.245491] RSP: 0018:ffff8880a5807960 EFLAGS: 00000082 [ 1151.245499] RAX: 1ffffffff13e3052 RBX: 0000000000000286 RCX: 0000000000000001 [ 1151.245504] RDX: dffffc0000000000 RSI: 00000000ffffffff RDI: ffff888093d00a04 [ 1151.245509] RBP: ffffffff89f85f20 R08: ffffffff8178e153 R09: ffffed1014afd896 [ 1151.245514] R10: ffff8880a57ec4b7 R11: 0000000000000000 R12: 0000000000000398 [ 1151.245519] R13: ffff8880a57ec4b0 R14: 0000000000000002 R15: ffffffff8178e153 [ 1151.245524] FS: 00007f53700bb700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 1151.245529] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1151.245534] CR2: 00007fc57993d000 CR3: 000000009782f000 CR4: 00000000003406f0 [ 1151.245538] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1151.245543] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1151.245546] Call Trace: [ 1151.245550] ___might_sleep+0x227/0x2b0 [ 1151.245553] __mutex_lock+0xab/0x1190 [ 1151.245557] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1151.245560] ? perf_mmap+0x693/0x1810 [ 1151.245564] ? mutex_trylock+0x1a0/0x1a0 [ 1151.245567] ? __mutex_unlock_slowpath+0xea/0x610 [ 1151.245571] ? wait_for_completion_io+0x10/0x10 [ 1151.245574] ? perf_mmap+0x755/0x1810 [ 1151.245578] ? perf_mmap+0x762/0x1810 [ 1151.245581] perf_mmap+0x693/0x1810 [ 1151.245584] ? perf_release+0x40/0x40 [ 1151.245588] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 1151.245591] mmap_region+0xc94/0x16b0 [ 1151.245595] ? vm_munmap+0x140/0x140 [ 1151.245598] ? get_unmapped_area+0x294/0x3c0 [ 1151.245601] do_mmap+0x8e8/0x1080 [ 1151.245605] vm_mmap_pgoff+0x197/0x200 [ 1151.245609] ? vma_is_stack_for_current+0xc0/0xc0 [ 1151.245612] ? do_dup2+0x450/0x450 [ 1151.245615] ? lock_downgrade+0x720/0x720 [ 1151.245619] ksys_mmap_pgoff+0x298/0x5a0 [ 1151.245623] ? find_mergeable_anon_vma+0x260/0x260 [ 1151.245627] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 1151.245631] ? trace_hardirqs_off_caller+0x6e/0x210 [ 1151.245634] ? do_syscall_64+0x21/0x620 [ 1151.245637] do_syscall_64+0xf9/0x620 [ 1151.245641] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1151.245645] RIP: 0033:0x7f537012abb9 [ 1151.245655] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 1151.245659] RSP: 002b:00007f53700bb308 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 1151.245668] RAX: ffffffffffffffda RBX: 00007f53701b2418 RCX: 00007f537012abb9 [ 1151.245673] RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020000000 [ 1151.245678] RBP: 00007f53701b2410 R08: 0000000000000003 R09: 0000000000000000 [ 1151.245683] R10: 0000000000080011 R11: 0000000000000246 R12: 00007f5370180074 [ 1151.245688] R13: 00007ffc79cdc90f R14: 00007f53700bb400 R15: 0000000000022000 [ 1151.409135] Kernel panic - not syncing: hung_task: blocked tasks [ 1151.557104] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 1151.564539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1151.573883] Call Trace: [ 1151.576474] dump_stack+0x1fc/0x2ef [ 1151.580103] panic+0x26a/0x50e [ 1151.583293] ? __warn_printk+0xf3/0xf3 [ 1151.587182] ? lapic_can_unplug_cpu+0x80/0x80 [ 1151.591673] ? ___preempt_schedule+0x16/0x18 [ 1151.596084] ? watchdog+0x991/0xe60 [ 1151.599714] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 1151.605163] watchdog+0x9a2/0xe60 [ 1151.608630] ? reset_hung_task_detector+0x30/0x30 [ 1151.613476] kthread+0x33f/0x460 [ 1151.616835] ? kthread_park+0x180/0x180 [ 1151.620811] ret_from_fork+0x24/0x30 [ 1151.625012] Kernel Offset: disabled [ 1151.628635] Rebooting in 86400 seconds..