[ 78.852442][ T27] audit: type=1800 audit(1579535797.163:24): pid=9572 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="sudo" dev="sda1" ino=2454 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 79.602082][ T27] audit: type=1800 audit(1579535798.043:25): pid=9572 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 79.621961][ T27] audit: type=1800 audit(1579535798.043:26): pid=9572 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.115' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 90.229962][ T9725] BUG: unable to handle page fault for address: 000000010000000e [ 90.229970][ T9725] #PF: supervisor write access in kernel mode [ 90.229976][ T9725] #PF: error_code(0x0002) - not-present page [ 90.229981][ T9725] PGD 9700a067 P4D 9700a067 PUD 0 [ 90.229998][ T9725] Oops: 0002 [#1] PREEMPT SMP KASAN [ 90.230011][ T9725] CPU: 1 PID: 9725 Comm: syz-executor151 Not tainted 5.5.0-rc7-syzkaller #0 [ 90.230019][ T9725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.230038][ T9725] RIP: 0010:do_con_trol+0x47ea/0x61b0 [ 90.230051][ T9725] Code: 08 2c 01 0f 8e b1 00 00 00 4c 8b bd 08 ff ff ff 48 63 db 44 89 e9 41 0f b7 84 24 c8 03 00 00 48 01 db d1 e9 49 01 df 4c 89 ff 66 ab 49 8d bc 24 78 04 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 [ 90.230057][ T9725] RSP: 0018:ffffc9000208f8b0 EFLAGS: 00010202 [ 90.230066][ T9725] RAX: 0000000000000720 RBX: 0000000000000000 RCX: 0000000000000001 [ 90.230075][ T9725] RDX: 1ffff11013e92479 RSI: ffffffff83ed594d RDI: 000000010000000e [ 90.230083][ T9725] RBP: ffffc9000208f9d0 R08: ffff88809c0c6080 R09: ffff88809c0c6910 [ 90.230090][ T9725] R10: fffffbfff14f69d0 R11: ffffffff8a7b4e87 R12: ffff88809f492000 [ 90.230097][ T9725] R13: 0000000000000002 R14: 0000000000000001 R15: 000000010000000e [ 90.230106][ T9725] FS: 000000000113c880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 90.230113][ T9725] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.230120][ T9725] CR2: 000000010000000e CR3: 000000009aa37000 CR4: 00000000001406e0 [ 90.230131][ T9725] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.230138][ T9725] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.230142][ T9725] Call Trace: [ 90.230161][ T9725] ? reset_palette+0x190/0x190 [ 90.230176][ T9725] ? __kasan_check_read+0x11/0x20 [ 90.230194][ T9725] ? __atomic_notifier_call_chain+0xf8/0x1a0 [ 90.230214][ T9725] do_con_write.part.0+0xfd9/0x1ef0 [ 90.230237][ T9725] ? do_con_trol+0x61b0/0x61b0 [ 90.230251][ T9725] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 90.230261][ T9725] ? add_wait_queue+0x112/0x170 [ 90.230273][ T9725] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 90.230290][ T9725] ? trace_hardirqs_on+0x67/0x240 [ 90.230307][ T9725] con_write+0x46/0xd0 [ 90.230325][ T9725] n_tty_write+0x40e/0x1080 [ 90.230345][ T9725] ? n_tty_read+0x1bf0/0x1bf0 [ 90.230357][ T9725] ? prepare_to_wait_exclusive+0x320/0x320 [ 90.230374][ T9725] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 90.230387][ T9725] ? _copy_from_user+0x12c/0x1a0 [ 90.230401][ T9725] tty_write+0x496/0x7f0 [ 90.230417][ T9725] ? n_tty_read+0x1bf0/0x1bf0 [ 90.230431][ T9725] __vfs_write+0x8a/0x110 [ 90.230442][ T9725] ? put_tty_driver+0x20/0x20 [ 90.230461][ T9725] vfs_write+0x268/0x5d0 [ 90.230475][ T9725] ksys_write+0x14f/0x290 [ 90.230488][ T9725] ? __ia32_sys_read+0xb0/0xb0 [ 90.230508][ T9725] ? do_syscall_64+0x26/0x790 [ 90.230521][ T9725] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 90.230535][ T9725] ? do_syscall_64+0x26/0x790 [ 90.230550][ T9725] __x64_sys_write+0x73/0xb0 [ 90.230566][ T9725] do_syscall_64+0xfa/0x790 [ 90.230582][ T9725] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 90.230591][ T9725] RIP: 0033:0x4404f9 [ 90.230603][ T9725] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 0f 83 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 90.230610][ T9725] RSP: 002b:00007ffe75640838 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 90.230621][ T9725] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004404f9 [ 90.230628][ T9725] RDX: 0000000000000078 RSI: 0000000020000000 RDI: 0000000000000004 [ 90.230634][ T9725] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 90.230641][ T9725] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401de0 [ 90.230648][ T9725] R13: 0000000000401e70 R14: 0000000000000000 R15: 0000000000000000 [ 90.230658][ T9725] Modules linked in: [ 90.230667][ T9725] CR2: 000000010000000e [ 90.230679][ T9725] ---[ end trace 08a05344c9a48947 ]--- [ 90.230696][ T9725] RIP: 0010:do_con_trol+0x47ea/0x61b0 [ 90.230709][ T9725] Code: 08 2c 01 0f 8e b1 00 00 00 4c 8b bd 08 ff ff ff 48 63 db 44 89 e9 41 0f b7 84 24 c8 03 00 00 48 01 db d1 e9 49 01 df 4c 89 ff 66 ab 49 8d bc 24 78 04 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 [ 90.230716][ T9725] RSP: 0018:ffffc9000208f8b0 EFLAGS: 00010202 [ 90.230727][ T9725] RAX: 0000000000000720 RBX: 0000000000000000 RCX: 0000000000000001 [ 90.230735][ T9725] RDX: 1ffff11013e92479 RSI: ffffffff83ed594d RDI: 000000010000000e [ 90.230744][ T9725] RBP: ffffc9000208f9d0 R08: ffff88809c0c6080 R09: ffff88809c0c6910 [ 90.230753][ T9725] R10: fffffbfff14f69d0 R11: ffffffff8a7b4e87 R12: ffff88809f492000 [ 90.230761][ T9725] R13: 0000000000000002 R14: 0000000000000001 R15: 000000010000000e [ 90.230772][ T9725] FS: 000000000113c880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 90.230781][ T9725] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.230789][ T9725] CR2: 000000010000000e CR3: 000000009aa37000 CR4: 00000000001406e0 [ 90.230804][ T9725] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.230812][ T9725] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.230819][ T9725] Kernel panic - not syncing: Fatal exception [ 90.232204][ T9725] Kernel Offset: disabled [ 90.739275][ T9725] Rebooting in 86400 seconds..