[info] Using makefile-style concurrent boot in runlevel 2. [ 25.401522] audit: type=1800 audit(1541979465.663:21): pid=5805 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 25.421475] audit: type=1800 audit(1541979465.683:22): pid=5805 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 syzkaller login: [ 31.523000] sshd (5943) used greatest stack depth: 15632 bytes left Warning: Permanently added '10.128.10.43' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.837067] kasan: CONFIG_KASAN_INLINE enabled [ 38.849803] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 38.873831] general protection fault: 0000 [#1] PREEMPT SMP KASAN executing program executing program executing program executing program [ 38.880107] CPU: 1 PID: 6333 Comm: syz-executor804 Not tainted 4.20.0-rc1-next-20181109+ #110 [ 38.888774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.898145] RIP: 0010:vb2_mmap+0x23c/0x6f0 [ 38.902387] Code: 80 3c 10 00 0f 85 1b 04 00 00 48 b9 00 00 00 00 00 fc ff df 48 8b 45 b8 48 8b 00 48 8d 78 14 48 89 45 d0 48 89 f8 48 c1 e8 03 <0f> b6 14 08 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 fa [ 38.921468] RSP: 0018:ffff8801c111f7d0 EFLAGS: 00010203 [ 38.926837] RAX: 0000000000000002 RBX: 000000000000000a RCX: dffffc0000000000 [ 38.934121] RDX: dffffc0000000000 RSI: ffffffff854c01c0 RDI: 0000000000000014 [ 38.941395] RBP: ffff8801c111f820 R08: ffff8801c23e8400 R09: ffffed0039c39966 [ 38.948668] R10: ffffed0039c39966 R11: ffff8801ce1ccb37 R12: 0000000000000000 [ 38.955945] R13: 0000000000000001 R14: 0000000020a00000 R15: ffff8801cb777268 [ 38.963218] FS: 00000000020b8880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 38.971448] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.977339] CR2: 00000000006cf090 CR3: 00000001b531c000 CR4: 00000000001406e0 [ 38.984627] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.991915] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.999189] Call Trace: [ 39.001794] ? vb2_poll+0x1d0/0x1d0 [ 39.005430] vb2_fop_mmap+0x4b/0x70 [ 39.009072] v4l2_mmap+0x153/0x200 [ 39.012619] mmap_region+0xe85/0x1cd0 [ 39.016427] ? __x64_sys_brk+0x8b0/0x8b0 [ 39.020487] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 39.025771] ? rcu_read_unlock_special+0x370/0x370 [ 39.030873] ? mpx_unmapped_area_check+0xd8/0x108 [ 39.035717] ? refcount_dec_if_one+0x180/0x180 [ 39.040314] ? arch_get_unmapped_area+0x750/0x750 [ 39.045166] ? lock_acquire+0x1ed/0x520 [ 39.049153] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 39.054171] ? cap_mmap_addr+0x52/0x130 [ 39.058155] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.063701] ? security_mmap_addr+0x80/0xa0 [ 39.068034] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 39.073784] ? get_unmapped_area+0x292/0x3b0 [ 39.078200] do_mmap+0xa22/0x1230 [ 39.081663] ? mmap_region+0x1cd0/0x1cd0 [ 39.085731] ? vm_mmap_pgoff+0x1b5/0x2c0 [ 39.089797] ? down_read_killable+0x150/0x150 [ 39.094301] ? security_mmap_file+0x174/0x1b0 [ 39.098802] vm_mmap_pgoff+0x213/0x2c0 [ 39.102715] ? vma_is_stack_for_current+0xd0/0xd0 [ 39.107562] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.113104] ? __fget_light+0x2e9/0x430 [ 39.117088] ? fget_raw+0x20/0x20 [ 39.120554] ? up_read+0x225/0x2c0 [ 39.124108] ksys_mmap_pgoff+0x4da/0x660 [ 39.128176] ? do_syscall_64+0x9a/0x820 [ 39.132164] ? find_mergeable_anon_vma+0xd0/0xd0 [ 39.136931] ? trace_hardirqs_on+0xbd/0x310 [ 39.141261] ? security_file_ioctl+0x94/0xc0 [ 39.145678] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.151048] ? trace_hardirqs_off_caller+0x300/0x300 [ 39.156161] __x64_sys_mmap+0xe9/0x1b0 [ 39.160056] do_syscall_64+0x1b9/0x820 [ 39.163952] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 39.169324] ? syscall_return_slowpath+0x5e0/0x5e0 [ 39.174261] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.179111] ? trace_hardirqs_on_caller+0x310/0x310 [ 39.184118] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 39.189123] ? prepare_exit_to_usermode+0x291/0x3b0 [ 39.194127] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.198962] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.204138] RIP: 0033:0x444c09 [ 39.207319] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 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 2b ce fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 39.226206] RSP: 002b:00007fff3df375f8 EFLAGS: 00000212 ORIG_RAX: 0000000000000009 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 39.233900] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000444c09 [ 39.241158] RDX: 00000000ffffffff RSI: 0000000000600000 RDI: 0000000020a00000 [ 39.248414] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000020a00000 [ 39.255669] R10: 0000000000000011 R11: 0000000000000212 R12: 000000000000977e [ 39.262922] R13: 0000000000401f50 R14: 0000000000000000 R15: 0000000000000000 [ 39.270180] Modules linked in: [ 39.279760] ---[ end trace eab0c06c6f6dccfa ]--- [ 39.284610] RIP: 0010:vb2_mmap+0x23c/0x6f0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 39.289020] Code: 80 3c 10 00 0f 85 1b 04 00 00 48 b9 00 00 00 00 00 fc ff df 48 8b 45 b8 48 8b 00 48 8d 78 14 48 89 45 d0 48 89 f8 48 c1 e8 03 <0f> b6 14 08 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 fa [ 39.310272] RSP: 0018:ffff8801c111f7d0 EFLAGS: 00010203 [ 39.323476] RAX: 0000000000000002 RBX: 000000000000000a RCX: dffffc0000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 39.336496] RDX: dffffc0000000000 RSI: ffffffff854c01c0 RDI: 0000000000000014 [ 39.348729] RBP: ffff8801c111f820 R08: ffff8801c23e8400 R09: ffffed0039c39966 [ 39.369133] R10: ffffed0039c39966 R11: ffff8801ce1ccb37 R12: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 39.384525] R13: 0000000000000001 R14: 0000000020a00000 R15: ffff8801cb777268 [ 39.402428] FS: 00000000020b8880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 39.413025] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.425721] CR2: 0000000000414ca0 CR3: 00000001b531c000 CR4: 00000000001406f0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 39.440354] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.449523] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.464346] Kernel panic - not syncing: Fatal exception [ 39.470782] Kernel Offset: disabled [ 39.474419] Rebooting in 86400 seconds..