[ 32.901359][ T26] audit: type=1800 audit(1548754846.677:27): pid=7326 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 32.923562][ T26] audit: type=1800 audit(1548754846.677:28): pid=7326 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 33.711996][ T26] audit: type=1800 audit(1548754847.547:29): pid=7326 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 33.732048][ T26] audit: type=1800 audit(1548754847.547:30): pid=7326 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.55' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 44.595906][ T7479] WARNING: CPU: 1 PID: 7479 at drivers/media/platform/vicodec/vicodec-core.c:151 get_q_data+0x53/0x80 [ 44.606918][ T7479] Kernel panic - not syncing: panic_on_warn set ... [ 44.613483][ T7479] CPU: 1 PID: 7479 Comm: syz-executor073 Not tainted 5.0.0-rc4-next-20190129 #21 [ 44.622559][ T7479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.632600][ T7479] Call Trace: [ 44.635880][ T7479] dump_stack+0x1db/0x2d0 [ 44.640194][ T7479] ? dump_stack_print_info.cold+0x20/0x20 [ 44.645900][ T7479] ? vidioc_try_fmt_vid_cap+0x800/0x810 [ 44.651427][ T7479] panic+0x2cb/0x65c [ 44.655300][ T7479] ? add_taint.cold+0x16/0x16 [ 44.659954][ T7479] ? get_q_data+0x53/0x80 [ 44.664258][ T7479] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 44.670471][ T7479] ? __probe_kernel_read+0x1f4/0x250 [ 44.675735][ T7479] ? __warn.cold+0x5/0x48 [ 44.680036][ T7479] ? __warn+0xe8/0x1d0 [ 44.684080][ T7479] ? get_q_data+0x53/0x80 [ 44.688385][ T7479] __warn.cold+0x20/0x48 [ 44.692880][ T7479] ? get_q_data+0x53/0x80 [ 44.697187][ T7479] report_bug+0x263/0x2b0 [ 44.701498][ T7479] do_error_trap+0x11b/0x200 [ 44.706065][ T7479] do_invalid_op+0x37/0x50 [ 44.710453][ T7479] ? get_q_data+0x53/0x80 [ 44.714776][ T7479] invalid_op+0x14/0x20 [ 44.718919][ T7479] RIP: 0010:get_q_data+0x53/0x80 [ 44.723829][ T7479] Code: 74 3a 83 fb 02 75 1e e8 eb 6e 33 fc 49 81 c4 70 02 00 00 e8 df 6e 33 fc 4c 89 e0 5b 41 5c 5d c3 83 fb 0a 74 e2 e8 cd 6e 33 fc <0f> 0b e8 c6 6e 33 fc 45 31 e4 5b 4c 89 e0 41 5c 5d c3 e8 b6 6e 33 [ 44.743406][ T7479] RSP: 0018:ffff88808638f758 EFLAGS: 00010293 [ 44.749445][ T7479] RAX: ffff888097a02400 RBX: 000000000000000c RCX: ffffffff854eab2f [ 44.757394][ T7479] RDX: 0000000000000000 RSI: ffffffff854eab63 RDI: 0000000000000005 [ 44.765339][ T7479] RBP: ffff88808638f768 R08: ffff888097a02400 R09: ffffed10136ec909 [ 44.773283][ T7479] R10: ffffed10136ec908 R11: ffff88809b764843 R12: ffff888098c484c0 [ 44.781231][ T7479] R13: 0000000000000002 R14: ffff888098c484c0 R15: ffff88808638f7e4 [ 44.789189][ T7479] ? get_q_data+0x1f/0x80 [ 44.793490][ T7479] ? get_q_data+0x53/0x80 [ 44.797797][ T7479] ? get_q_data+0x53/0x80 [ 44.802461][ T7479] vidioc_s_selection+0x9b/0x3e0 [ 44.807388][ T7479] v4l_s_crop+0x32a/0x510 [ 44.811703][ T7479] ? v4l_log_status+0xf0/0xf0 [ 44.816363][ T7479] __video_do_ioctl+0x805/0xd80 [ 44.821230][ T7479] ? v4l_s_fmt+0xb40/0xb40 [ 44.825636][ T7479] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 44.831858][ T7479] ? _copy_from_user+0xdd/0x150 [ 44.836703][ T7479] video_usercopy+0x460/0x16b0 [ 44.841546][ T7479] ? v4l_s_fmt+0xb40/0xb40 [ 44.845938][ T7479] ? v4l_enumstd+0x70/0x70 [ 44.850329][ T7479] ? save_stack+0xa9/0xd0 [ 44.854630][ T7479] ? save_stack+0x45/0xd0 [ 44.858944][ T7479] ? __kasan_slab_free+0x102/0x150 [ 44.864114][ T7479] ? kasan_slab_free+0xe/0x10 [ 44.868762][ T7479] ? kmem_cache_free+0x86/0x260 [ 44.873583][ T7479] ? putname+0xef/0x130 [ 44.877710][ T7479] ? do_sys_open+0x3f4/0x7c0 [ 44.882272][ T7479] ? __x64_sys_openat+0x9d/0x100 [ 44.887181][ T7479] ? do_syscall_64+0x1a3/0x800 [ 44.891916][ T7479] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.897958][ T7479] ? trace_hardirqs_off+0xb8/0x310 [ 44.903054][ T7479] ? kasan_check_read+0x11/0x20 [ 44.907890][ T7479] ? do_raw_spin_unlock+0xa0/0x330 [ 44.912974][ T7479] ? trace_hardirqs_on_caller+0x310/0x310 [ 44.918662][ T7479] ? do_raw_spin_trylock+0x270/0x270 [ 44.924490][ T7479] ? trace_hardirqs_off+0xb8/0x310 [ 44.929577][ T7479] ? video_usercopy+0x16b0/0x16b0 [ 44.934573][ T7479] video_ioctl2+0x2d/0x35 [ 44.938875][ T7479] v4l2_ioctl+0x156/0x1b0 [ 44.943180][ T7479] ? video_devdata+0xa0/0xa0 [ 44.947755][ T7479] do_vfs_ioctl+0x107b/0x17d0 [ 44.952407][ T7479] ? putname+0xef/0x130 [ 44.956536][ T7479] ? ioctl_preallocate+0x2f0/0x2f0 [ 44.961630][ T7479] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 44.967840][ T7479] ? __fget_light+0x2db/0x420 [ 44.972486][ T7479] ? fget_raw+0x20/0x20 [ 44.976623][ T7479] ? do_sys_open+0x3f9/0x7c0 [ 44.981191][ T7479] ? do_syscall_64+0x8c/0x800 [ 44.985851][ T7479] ? do_syscall_64+0x8c/0x800 [ 44.990509][ T7479] ? lockdep_hardirqs_on+0x418/0x5d0 [ 44.995767][ T7479] ? security_file_ioctl+0x93/0xc0 [ 45.000940][ T7479] ksys_ioctl+0xab/0xd0 [ 45.005070][ T7479] __x64_sys_ioctl+0x73/0xb0 [ 45.009633][ T7479] do_syscall_64+0x1a3/0x800 [ 45.014195][ T7479] ? syscall_return_slowpath+0x5f0/0x5f0 [ 45.019815][ T7479] ? prepare_exit_to_usermode+0x232/0x3b0 [ 45.025509][ T7479] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.031031][ T7479] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.037198][ T7479] RIP: 0033:0x440089 [ 45.041074][ T7479] 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 45.060665][ T7479] RSP: 002b:00007ffe747247e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.069065][ T7479] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440089 [ 45.077008][ T7479] RDX: 0000000020000100 RSI: 000000004014563c RDI: 0000000000000003 [ 45.084950][ T7479] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 45.092895][ T7479] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401910 [ 45.100840][ T7479] R13: 00000000004019a0 R14: 0000000000000000 R15: 0000000000000000 [ 45.110025][ T7479] Kernel Offset: disabled [ 45.114393][ T7479] Rebooting in 86400 seconds..