[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Update UTMP about System Runlevel Changes.
[  OK  ] Started Load/Save RF Kill Switch Status.


Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.30' (ECDSA) to the list of known hosts.
syzkaller login: [  199.647366] audit: type=1400 audit(1599259769.729:8): avc:  denied  { execmem } for  pid=6469 comm="syz-executor141" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[  267.773354] kasan: CONFIG_KASAN_INLINE enabled
[  267.773363] kasan: GPF could be caused by NULL-ptr deref or user memory access
[  267.773380] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[  267.773394] CPU: 1 PID: 6469 Comm: syz-executor141 Not tainted 4.19.143-syzkaller #0
[  267.773401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  267.773422] RIP: 0010:wait_consider_task+0x95/0x3910
[  267.773434] Code: 48 8b 04 25 28 00 00 00 48 89 84 24 f0 00 00 00 31 c0 e8 9e 39 2b 00 49 8d 8e 6c 04 00 00 48 89 c8 48 89 4c 24 10 48 c1 e8 03 <0f> b6 14 28 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4b
[  267.773441] RSP: 0018:ffff888083037b00 EFLAGS: 00010207
[  267.773451] RAX: 000ee00000ee00db RBX: 0000000000000000 RCX: 00770000077006dc
[  267.773457] RDX: 0000000000000000 RSI: ffffffff813e7832 RDI: ffff888083037d00
[  267.773464] RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000
[  267.773470] R10: 0000000000000005 R11: 0000000000000000 R12: ffff888083037d00
[  267.773477] R13: ffff8880a441e3c0 R14: 0077000007700270 R15: ffff8880a441e8b0
[  267.773487] FS:  0000000001144880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
[  267.773495] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  267.773502] CR2: 00007f2caaa26d18 CR3: 000000009ae7c000 CR4: 00000000001406e0
[  267.773512] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  267.773519] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  267.773522] Call Trace:
[  267.773539]  ? do_wait+0x184/0x9c0
[  267.773553]  ? release_task+0x1480/0x1480
[  267.773567]  ? lock_acquire+0x170/0x3c0
[  267.773577]  ? do_wait+0x3a0/0x9c0
[  267.773595]  do_wait+0x429/0x9c0
[  267.931756]  ? wait_consider_task+0x3910/0x3910
[  267.931768]  ? lock_downgrade+0x720/0x720
[  267.931774]  ? lock_acquire+0x170/0x3c0
[  267.931782]  kernel_wait4+0x14c/0x260
[  267.931789]  ? __ia32_sys_waitid+0x150/0x150
[  267.931797]  ? kill_orphaned_pgrp+0x340/0x340
[  267.931810]  __se_sys_wait4+0x149/0x160
[  267.931817]  ? kernel_wait4+0x260/0x260
[  267.931824]  ? put_timespec64+0xcb/0x120
[  267.931831]  ? __se_compat_sys_gettimeofday+0x1b0/0x1b0
[  267.931841]  ? __se_sys_clock_gettime+0x124/0x1e0
[  267.931847]  ? posix_timer_fn+0x3d0/0x3d0
[  267.931857]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  267.931865]  ? trace_hardirqs_off_caller+0x69/0x210
[  267.931872]  ? do_syscall_64+0x21/0x620
[  267.931880]  do_syscall_64+0xf9/0x620
[  267.931940]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  267.931949] RIP: 0033:0x405a1a
[  267.931958] Code: c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 8b 05 3e c1 2d 00 85 c0 75 36 45 31 d2 48 63 d2 48 63 ff b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 d0 ff ff ff f7
[  267.931962] RSP: 002b:00007ffe728c8828 EFLAGS: 00000246 ORIG_RAX: 000000000000003d
[  267.931969] RAX: ffffffffffffffda RBX: 00000000000026ae RCX: 0000000000405a1a
[  267.931973] RDX: 0000000040000001 RSI: 00007ffe728c8840 RDI: ffffffffffffffff
[  267.931977] RBP: 00000000000415c8 R08: 0000000000001945 R09: 0000000001144880
[  267.931981] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004076e0
[  267.931985] R13: 0000000000407770 R14: 0000000000000000 R15: 0000000000000000
[  267.931991] Modules linked in:
[  267.932088] ---[ end trace 52eb9c203ae94bbc ]---
[  267.932098] RIP: 0010:wait_consider_task+0x95/0x3910
[  267.932105] Code: 48 8b 04 25 28 00 00 00 48 89 84 24 f0 00 00 00 31 c0 e8 9e 39 2b 00 49 8d 8e 6c 04 00 00 48 89 c8 48 89 4c 24 10 48 c1 e8 03 <0f> b6 14 28 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4b
[  267.932109] RSP: 0018:ffff888083037b00 EFLAGS: 00010207
[  267.932114] RAX: 000ee00000ee00db RBX: 0000000000000000 RCX: 00770000077006dc
[  267.932118] RDX: 0000000000000000 RSI: ffffffff813e7832 RDI: ffff888083037d00
[  267.932122] RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000
[  267.932126] R10: 0000000000000005 R11: 0000000000000000 R12: ffff888083037d00
[  267.932130] R13: ffff8880a441e3c0 R14: 0077000007700270 R15: ffff8880a441e8b0
[  267.932136] FS:  0000000001144880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
[  267.932140] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  267.932145] CR2: 00007f2caaa26d18 CR3: 000000009ae7c000 CR4: 00000000001406e0
[  267.932151] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  267.932155] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  267.932160] Kernel panic - not syncing: Fatal exception
[  269.013629] Shutting down cpus with NMI
[  269.015211] Kernel Offset: disabled
[  269.279258] Rebooting in 86400 seconds..