[....] Starting periodic command scheduler: cron[ 44.942145] audit: type=1800 audit(1549889839.409:30): pid=8029 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 48.769485] kauditd_printk_skb: 4 callbacks suppressed [ 48.769501] audit: type=1400 audit(1549889843.239:35): avc: denied { map } for pid=8204 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.21' (ECDSA) to the list of known hosts. executing program [ 55.674120] audit: type=1400 audit(1549889850.139:36): avc: denied { map } for pid=8216 comm="syz-executor800" path="/root/syz-executor800163859" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 55.718470] kasan: CONFIG_KASAN_INLINE enabled [ 55.723108] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 55.730553] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 55.736795] CPU: 0 PID: 1171 Comm: kworker/u5:0 Not tainted 5.0.0-rc6 #67 [ 55.743704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.753050] Workqueue: hci0 hci_power_on [ 55.757104] RIP: 0010:qca_setup+0x134/0x1550 [ 55.761494] Code: c1 ea 03 80 3c 02 00 0f 85 08 12 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 08 49 8d bc 24 f8 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d7 11 00 00 4d 8b ac 24 f8 00 00 00 49 8d 85 f0 [ 55.780384] RSP: 0018:ffff8880a790fa00 EFLAGS: 00010202 [ 55.785732] RAX: dffffc0000000000 RBX: ffff8880a6150d40 RCX: ffffffff84ecfa52 [ 55.792985] RDX: 000000000000001f RSI: ffffffff84ee0c01 RDI: 00000000000000f8 [ 55.800240] RBP: ffff8880a790fb50 R08: ffff8880a7fe8300 R09: 0000000000000004 [ 55.807495] R10: ffffed1012ea9c4d R11: ffff88809754e26f R12: 0000000000000000 [ 55.814752] R13: ffff888091e75480 R14: ffff8880a790fb28 R15: 0000000000000000 [ 55.822003] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 55.830210] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.836074] CR2: 00007ff408dc9000 CR3: 0000000095a80000 CR4: 00000000001406f0 [ 55.843372] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.850626] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.857879] Call Trace: [ 55.860459] ? tty_termios_encode_baud_rate+0x3ca/0x4e0 [ 55.865817] ? qca_send_power_pulse+0x200/0x200 [ 55.870473] ? hci_uart_set_baudrate+0x157/0x1c0 [ 55.875219] ? debug_object_deactivate+0x1e4/0x360 [ 55.880132] ? qca_send_power_pulse+0x200/0x200 [ 55.884791] hci_uart_setup+0x1c4/0x490 [ 55.888747] ? hci_uart_set_baudrate+0x1c0/0x1c0 [ 55.893484] hci_dev_do_open+0x67e/0x14b0 [ 55.897613] ? hci_rx_work+0xaa0/0xaa0 [ 55.901482] ? kasan_check_read+0x11/0x20 [ 55.905613] ? process_one_work+0x890/0x1790 [ 55.910008] ? find_held_lock+0x35/0x130 [ 55.914057] hci_power_on+0x10d/0x580 [ 55.917845] ? hci_error_reset+0xf0/0xf0 [ 55.921884] ? __lock_is_held+0xb6/0x140 [ 55.925928] ? check_preemption_disabled+0x48/0x290 [ 55.930930] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 55.936362] process_one_work+0x98e/0x1790 [ 55.940581] ? pwq_dec_nr_in_flight+0x320/0x320 [ 55.945232] worker_thread+0x98/0xe40 [ 55.949019] kthread+0x357/0x430 [ 55.952372] ? process_one_work+0x1790/0x1790 [ 55.956852] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 55.962373] ret_from_fork+0x3a/0x50 [ 55.966067] Modules linked in: [ 55.970037] ---[ end trace 775b2637328f948f ]--- [ 55.974815] RIP: 0010:qca_setup+0x134/0x1550 [ 55.979346] Code: c1 ea 03 80 3c 02 00 0f 85 08 12 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 08 49 8d bc 24 f8 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d7 11 00 00 4d 8b ac 24 f8 00 00 00 49 8d 85 f0 [ 55.998297] RSP: 0018:ffff8880a790fa00 EFLAGS: 00010202 [ 56.003658] RAX: dffffc0000000000 RBX: ffff8880a6150d40 RCX: ffffffff84ecfa52 [ 56.010944] RDX: 000000000000001f RSI: ffffffff84ee0c01 RDI: 00000000000000f8 [ 56.018231] RBP: ffff8880a790fb50 R08: ffff8880a7fe8300 R09: 0000000000000004 [ 56.025526] R10: ffffed1012ea9c4d R11: ffff88809754e26f R12: 0000000000000000 [ 56.032803] R13: ffff888091e75480 R14: ffff8880a790fb28 R15: 0000000000000000 [ 56.040088] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 56.048324] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.054190] CR2: 00007ff408dc9000 CR3: 0000000095a80000 CR4: 00000000001406f0 [ 56.061475] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.068756] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.076185] Kernel panic - not syncing: Fatal exception [ 56.082732] Kernel Offset: disabled [ 56.086352] Rebooting in 86400 seconds..