[info] Using makefile-style concurrent boot in runlevel 2. [ 25.175561] audit: type=1800 audit(1540934236.907:21): pid=5520 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 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 '10.128.0.10' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.678298] kasan: CONFIG_KASAN_INLINE enabled [ 36.682962] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 36.690656] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 36.696893] CPU: 0 PID: 5674 Comm: syz-executor957 Not tainted 4.19.0-next-20181030+ #101 [ 36.705184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.714527] RIP: 0010:vb2_vmalloc_put_userptr+0x73/0x250 [ 36.719963] 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 [ 36.738849] RSP: 0018:ffff8801ba3073b0 EFLAGS: 00010202 [ 36.744191] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff113ecd0 [ 36.751460] RDX: 0000000000000001 RSI: ffffffff854f0009 RDI: 0000000000000009 [ 36.758711] RBP: ffff8801ba3073e0 R08: ffff8801d805c680 R09: ffffed0039688b8b [ 36.765958] R10: ffff8801ba3074d8 R11: ffff8801cb445c5f R12: ffffc90002559000 [ 36.773206] R13: 0000000000000000 R14: ffff8801d7b8c080 R15: ffff8801d7b8c080 [ 36.780472] FS: 0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 36.788677] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.794536] CR2: 000000000043e920 CR3: 000000000946a000 CR4: 00000000001406f0 [ 36.801795] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.809050] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.816298] Call Trace: [ 36.818876] __vb2_queue_free+0x4b1/0xa30 [ 36.823020] ? vb2_vmalloc_detach_dmabuf+0x80/0x80 [ 36.827935] ? __vb2_plane_dmabuf_put.isra.6+0x310/0x310 [ 36.833369] vb2_core_queue_release+0x62/0x80 [ 36.837851] _vb2_fop_release+0x1d2/0x2b0 [ 36.841978] vb2_fop_release+0x77/0xc0 [ 36.845847] vivid_fop_release+0x18e/0x440 [ 36.850065] ? vivid_remove+0x460/0x460 [ 36.854023] v4l2_release+0xfb/0x1a0 [ 36.857721] __fput+0x3bc/0xa70 [ 36.860985] ? dev_debug_store+0x140/0x140 [ 36.865202] ? get_max_files+0x20/0x20 [ 36.869078] ? trace_hardirqs_on+0xbd/0x310 [ 36.873382] ? kasan_check_read+0x11/0x20 [ 36.877514] ? task_work_run+0x1af/0x2a0 [ 36.881560] ? trace_hardirqs_off_caller+0x300/0x300 [ 36.886647] ____fput+0x15/0x20 [ 36.889912] task_work_run+0x1e8/0x2a0 [ 36.893783] ? task_work_cancel+0x240/0x240 [ 36.898095] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 36.903614] ? switch_task_namespaces+0x9d/0xd0 [ 36.908266] do_exit+0x1ad1/0x26d0 [ 36.911796] ? mm_update_next_owner+0x990/0x990 [ 36.916446] ? kvfree+0x66/0x70 [ 36.919710] ? video_usercopy+0x79b/0x1750 [ 36.923944] ? v4l_s_fmt+0x990/0x990 [ 36.927641] ? v4l_enumstd+0x70/0x70 [ 36.931335] ? rcu_softirq_qs+0x20/0x20 [ 36.935291] ? is_bpf_text_address+0xd3/0x170 [ 36.939768] ? __kernel_text_address+0xd/0x40 [ 36.944248] ? unwind_get_return_address+0x61/0xa0 [ 36.949159] ? __save_stack_trace+0x8d/0xf0 [ 36.953469] ? save_stack+0x43/0xd0 [ 36.957082] ? __kasan_slab_free+0x102/0x150 [ 36.961470] ? kasan_slab_free+0xe/0x10 [ 36.965424] ? kmem_cache_free+0x83/0x290 [ 36.969557] ? do_sys_open+0x54d/0x700 [ 36.973425] ? __x64_sys_open+0x7e/0xc0 [ 36.977383] ? do_syscall_64+0x1b9/0x820 [ 36.981425] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.986774] ? trace_hardirqs_off+0xb8/0x310 [ 36.991172] ? kasan_check_read+0x11/0x20 [ 36.995301] ? do_raw_spin_unlock+0xa7/0x330 [ 36.999696] ? trace_hardirqs_on+0x310/0x310 [ 37.004091] ? video_usercopy+0x1750/0x1750 [ 37.006808] kobject: 'regulatory.0' (000000007a24cb76): kobject_uevent_env [ 37.008408] ? video_ioctl2+0x2c/0x33 [ 37.015425] kobject: 'regulatory.0' (000000007a24cb76): fill_kobj_path: path = '/devices/platform/regulatory.0' [ 37.019197] ? v4l2_ioctl+0x15c/0x1b0 [ 37.019210] ? video_devdata+0xa0/0xa0 [ 37.019226] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.019240] ? do_vfs_ioctl+0x201/0x1790 [ 37.019262] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 37.052225] ? ioctl_preallocate+0x300/0x300 [ 37.056615] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.062138] ? __fget_light+0x2e9/0x430 [ 37.066092] ? fget_raw+0x20/0x20 [ 37.069530] ? rcu_read_lock_sched_held+0x14f/0x180 [ 37.074529] ? kmem_cache_free+0x24f/0x290 [ 37.078745] ? putname+0xf7/0x130 [ 37.082198] do_group_exit+0x177/0x440 [ 37.086097] ? trace_hardirqs_on+0xbd/0x310 [ 37.090406] ? __ia32_sys_exit+0x50/0x50 [ 37.094450] ? trace_hardirqs_off_caller+0x300/0x300 [ 37.099533] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.105059] ? ksys_ioctl+0x81/0xd0 [ 37.108671] __x64_sys_exit_group+0x3e/0x50 [ 37.112977] do_syscall_64+0x1b9/0x820 [ 37.116853] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.122201] ? syscall_return_slowpath+0x5e0/0x5e0 [ 37.127114] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.131941] ? trace_hardirqs_on_caller+0x310/0x310 [ 37.136938] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 37.141937] ? prepare_exit_to_usermode+0x291/0x3b0 [ 37.146939] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.151779] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.156955] RIP: 0033:0x442da8 [ 37.160139] Code: Bad RIP value. [ 37.163497] RSP: 002b:00007ffdfbb46a18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 37.171185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da8 [ 37.178433] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 37.185682] RBP: 00000000004c2968 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 37.192931] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 37.200181] R13: 00000000006d4180 R14: 0000000000000000 R15: 0000000000000000 [ 37.207433] Modules linked in: [ 37.211405] ---[ end trace 2a129725cdc576ca ]--- [ 37.216179] RIP: 0010:vb2_vmalloc_put_userptr+0x73/0x250 [ 37.221678] 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 [ 37.240604] RSP: 0018:ffff8801ba3073b0 EFLAGS: 00010202 [ 37.245952] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff113ecd0 [ 37.253235] RDX: 0000000000000001 RSI: ffffffff854f0009 RDI: 0000000000000009 [ 37.260520] RBP: ffff8801ba3073e0 R08: ffff8801d805c680 R09: ffffed0039688b8b [ 37.267814] R10: ffff8801ba3074d8 R11: ffff8801cb445c5f R12: ffffc90002559000 [ 37.275092] R13: 0000000000000000 R14: ffff8801d7b8c080 R15: ffff8801d7b8c080 [ 37.282381] FS: 0000000002016880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 37.290620] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.296485] CR2: 0000000000442d7e CR3: 000000000946a000 CR4: 00000000001406f0 [ 37.303772] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.311069] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.318357] Kernel panic - not syncing: Fatal exception [ 37.324587] Kernel Offset: disabled [ 37.328209] Rebooting in 86400 seconds..