[info] Using makefile-style concurrent boot in runlevel 2. [ 24.095104] audit: type=1800 audit(1541369427.203:21): pid=5498 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.114747] audit: type=1800 audit(1541369427.203:22): pid=5498 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 Warning: Permanently added '10.128.10.29' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 69.682469] kasan: CONFIG_KASAN_INLINE enabled [ 69.687828] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 69.695771] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 69.702105] CPU: 0 PID: 5658 Comm: syz-executor296 Not tainted 4.19.0+ #97 [ 69.709207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.718563] RIP: 0010:vb2_vmalloc_put_userptr+0x73/0x250 [ 69.723999] Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 c2 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5e 08 48 8d 7b 09 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 72 01 00 00 [ 69.743054] RSP: 0018:ffff8801b9c873a0 EFLAGS: 00010202 [ 69.748412] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff113e4e0 [ 69.755669] RDX: 0000000000000001 RSI: ffffffff854de5d9 RDI: 0000000000000009 [ 69.762937] RBP: ffff8801b9c873d0 R08: ffff8801d3520180 R09: ffffed00395c0cba [ 69.770204] R10: ffff8801b9c874c8 R11: ffff8801cae065d7 R12: ffffc90002571000 [ 69.777467] R13: 0000000000000000 R14: ffff8801c8cd0680 R15: ffff8801c8cd0680 [ 69.784725] FS: 0000000002010880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 69.792941] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.798811] CR2: 000000000043e920 CR3: 000000000946a000 CR4: 00000000001406f0 [ 69.806069] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.813322] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.820578] Call Trace: [ 69.823161] __vb2_queue_free+0x4b1/0xa30 [ 69.827299] ? vb2_vmalloc_detach_dmabuf+0x80/0x80 [ 69.832212] ? __vb2_plane_dmabuf_put.isra.5+0x310/0x310 [ 69.837653] vb2_core_queue_release+0x62/0x80 [ 69.842138] _vb2_fop_release+0x1d2/0x2b0 [ 69.846276] vb2_fop_release+0x77/0xc0 [ 69.850252] vivid_fop_release+0x18e/0x440 [ 69.854487] ? vivid_remove+0x460/0x460 [ 69.858578] v4l2_release+0x224/0x3a0 [ 69.862533] ? dev_debug_store+0x140/0x140 [ 69.866759] __fput+0x385/0xa30 [ 69.870030] ? get_max_files+0x20/0x20 [ 69.873921] ? trace_hardirqs_on+0xbd/0x310 [ 69.878239] ? kasan_check_read+0x11/0x20 [ 69.882377] ? task_work_run+0x1af/0x2a0 [ 69.886435] ? trace_hardirqs_off_caller+0x310/0x310 [ 69.891543] ____fput+0x15/0x20 [ 69.894815] task_work_run+0x1e8/0x2a0 [ 69.898687] ? task_work_cancel+0x240/0x240 [ 69.902995] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 69.908518] ? switch_task_namespaces+0x9d/0xd0 [ 69.913228] do_exit+0x1ad6/0x26d0 [ 69.916770] ? mm_update_next_owner+0x990/0x990 [ 69.921565] ? kvfree+0x66/0x70 [ 69.924837] ? video_usercopy+0x79b/0x1760 [ 69.929056] ? v4l_s_fmt+0x990/0x990 [ 69.932756] ? v4l_enumstd+0x70/0x70 [ 69.936564] ? rcu_softirq_qs+0x20/0x20 [ 69.940531] ? is_bpf_text_address+0xd3/0x170 [ 69.945244] ? __kernel_text_address+0xd/0x40 [ 69.949731] ? unwind_get_return_address+0x61/0xa0 [ 69.954687] ? __save_stack_trace+0x8d/0xf0 [ 69.959063] ? smk_access+0x53b/0x700 [ 69.963020] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.968559] ? smack_log+0x423/0x590 [ 69.972264] ? smk_access_entry+0x310/0x310 [ 69.976572] ? trace_hardirqs_off+0xb8/0x310 [ 69.980966] ? smk_tskacc+0x3dd/0x520 [ 69.984754] ? video_usercopy+0x1760/0x1760 [ 69.989168] ? video_ioctl2+0x2c/0x33 [ 69.992960] ? v4l2_ioctl+0x15c/0x1b0 [ 69.996900] ? video_devdata+0xa0/0xa0 [ 70.000933] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.006458] ? do_vfs_ioctl+0x201/0x1790 [ 70.010506] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 70.016173] ? ioctl_preallocate+0x300/0x300 [ 70.020579] ? smk_curacc+0x7f/0xa0 [ 70.024198] ? smack_file_ioctl+0x210/0x3c0 [ 70.028550] ? fget_raw+0x20/0x20 [ 70.031996] ? smack_file_lock+0x2e0/0x2e0 [ 70.036227] ? rcu_read_lock_sched_held+0x14f/0x180 [ 70.041353] do_group_exit+0x177/0x440 [ 70.045231] ? trace_hardirqs_on+0xbd/0x310 [ 70.049547] ? __ia32_sys_exit+0x50/0x50 [ 70.053596] ? trace_hardirqs_off_caller+0x310/0x310 [ 70.058688] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.064340] ? ksys_ioctl+0x81/0xd0 [ 70.067963] __x64_sys_exit_group+0x3e/0x50 [ 70.072276] do_syscall_64+0x1b9/0x820 [ 70.076152] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 70.081504] ? syscall_return_slowpath+0x5e0/0x5e0 [ 70.086425] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 70.091366] ? trace_hardirqs_on_caller+0x310/0x310 [ 70.096987] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 70.101996] ? prepare_exit_to_usermode+0x291/0x3b0 [ 70.107003] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 70.111923] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.117106] RIP: 0033:0x442da8 [ 70.120297] Code: Bad RIP value. [ 70.123788] RSP: 002b:00007ffe13adb938 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 70.131492] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da8 [ 70.138763] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 70.146025] RBP: 00000000004c2968 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 70.153286] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 70.160544] R13: 00000000006d4180 R14: 0000000000000000 R15: 0000000000000000 [ 70.167853] Modules linked in: [ 70.171896] ---[ end trace b8c9b021415d499f ]--- [ 70.176813] RIP: 0010:vb2_vmalloc_put_userptr+0x73/0x250 [ 70.182260] Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 c2 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5e 08 48 8d 7b 09 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 72 01 00 00 [ 70.201231] RSP: 0018:ffff8801b9c873a0 EFLAGS: 00010202 [ 70.206682] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff113e4e0 [ 70.213986] RDX: 0000000000000001 RSI: ffffffff854de5d9 RDI: 0000000000000009 [ 70.221427] RBP: ffff8801b9c873d0 R08: ffff8801d3520180 R09: ffffed00395c0cba [ 70.228877] R10: ffff8801b9c874c8 R11: ffff8801cae065d7 R12: ffffc90002571000 [ 70.236160] R13: 0000000000000000 R14: ffff8801c8cd0680 R15: ffff8801c8cd0680 [ 70.243510] FS: 0000000002010880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 70.252278] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.258200] CR2: 0000000000442d7e CR3: 000000000946a000 CR4: 00000000001406f0 [ 70.265611] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.272889] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.280191] Kernel panic - not syncing: Fatal exception [ 70.286769] Kernel Offset: disabled [ 70.290395] Rebooting in 86400 seconds..