[ 27.968390] audit: type=1800 audit(1541537994.897:27): pid=5571 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 27.988471] audit: type=1800 audit(1541537994.897:28): pid=5571 uid=0 auid=4294967295 ses=4294967295 subj=_ 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. [ 28.842058] audit: type=1800 audit(1541537995.847:29): pid=5571 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 28.860900] audit: type=1800 audit(1541537995.847:30): pid=5571 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.48' (ECDSA) to the list of known hosts. 2018/11/06 21:00:18 parsed 1 programs 2018/11/06 21:00:20 executed programs: 0 syzkaller login: [ 53.614895] IPVS: ftp: loaded support on port[0] = 21 [ 53.628656] IPVS: ftp: loaded support on port[0] = 21 [ 53.649337] IPVS: ftp: loaded support on port[0] = 21 [ 53.661599] IPVS: ftp: loaded support on port[0] = 21 [ 53.694916] IPVS: ftp: loaded support on port[0] = 21 [ 53.714007] IPVS: ftp: loaded support on port[0] = 21 [ 54.490774] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.502339] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.510656] device bridge_slave_0 entered promiscuous mode [ 54.552980] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.564338] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.571359] device bridge_slave_1 entered promiscuous mode [ 54.584663] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.590997] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.598749] device bridge_slave_0 entered promiscuous mode [ 54.610391] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.617748] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.624772] device bridge_slave_0 entered promiscuous mode [ 54.633460] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 54.642320] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.653894] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.660845] device bridge_slave_0 entered promiscuous mode [ 54.676856] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.683196] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.691502] device bridge_slave_1 entered promiscuous mode [ 54.699872] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 54.712734] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.722392] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.729684] device bridge_slave_0 entered promiscuous mode [ 54.736596] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.742933] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.750239] device bridge_slave_1 entered promiscuous mode [ 54.758202] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.767522] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.778394] device bridge_slave_0 entered promiscuous mode [ 54.791101] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 54.803865] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.810315] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.818467] device bridge_slave_1 entered promiscuous mode [ 54.826738] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.833066] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.841630] device bridge_slave_1 entered promiscuous mode [ 54.849095] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 54.862220] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.870615] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.878324] device bridge_slave_1 entered promiscuous mode [ 54.886066] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 54.895023] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 54.904676] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 54.912685] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 54.931497] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 54.955507] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 54.965635] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 54.983016] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 55.008177] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 55.094722] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.138037] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.186266] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.205657] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.243506] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.253492] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.277896] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 55.288212] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.304505] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.324706] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.344945] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 55.351845] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.364629] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 55.377281] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.389119] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.408499] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 55.422906] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.437203] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 55.449171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.471891] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.487737] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 55.497670] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 55.506284] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.518811] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.528314] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.545152] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 55.567424] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.599934] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 55.617853] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.649248] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 55.662961] team0: Port device team_slave_0 added [ 55.669372] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 55.695896] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.742866] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 55.752386] team0: Port device team_slave_0 added [ 55.772700] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 55.781979] team0: Port device team_slave_0 added [ 55.795869] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 55.804331] team0: Port device team_slave_0 added [ 55.814751] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 55.822108] team0: Port device team_slave_1 added [ 55.862278] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 55.878592] team0: Port device team_slave_1 added [ 55.887346] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 55.901837] team0: Port device team_slave_1 added [ 55.911296] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 55.919272] team0: Port device team_slave_1 added [ 55.940683] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.954123] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 55.961494] team0: Port device team_slave_0 added [ 55.985867] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.996934] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 56.005204] team0: Port device team_slave_0 added [ 56.019958] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.030534] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.047974] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.070376] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 56.088013] team0: Port device team_slave_1 added [ 56.094940] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.111157] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 56.118741] team0: Port device team_slave_1 added [ 56.125888] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.135578] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 56.142891] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 56.162978] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.187880] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.199397] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.207472] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.218023] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.235018] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 56.245136] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 56.252672] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.260835] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.277803] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.292339] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.300413] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.308877] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 56.318694] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 56.330042] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 56.340509] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 56.352143] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.362555] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.377827] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 56.396887] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.404587] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.412265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.420233] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.428385] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.438042] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 56.456126] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.464868] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.486003] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 56.494077] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.504023] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.519499] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 56.537660] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 56.554061] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.567597] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.581636] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.591277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.602506] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 56.614309] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 56.640600] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 56.652670] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.661948] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.670966] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.681650] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.691299] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.699616] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 57.190583] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.197127] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.204160] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.210540] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.232262] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 57.254130] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 57.331819] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.338264] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.344970] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.351436] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.374448] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 57.392002] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.398403] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.405118] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.411485] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.420164] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 57.431721] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.438138] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.444837] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.451207] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.465384] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 57.474370] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.480738] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.487462] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.493870] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.501954] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 57.652851] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.659268] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.665977] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.672348] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.682703] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 58.333770] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.341711] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.365227] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.372339] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.379507] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.240411] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.352830] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.378343] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.411132] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.447497] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.468909] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.543408] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 60.604826] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 60.676315] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 60.690520] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 60.737668] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 60.766731] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 60.867175] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 60.883442] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.893064] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.925382] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 60.933293] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.954959] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.980809] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 60.990359] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.004722] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.044683] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 61.050986] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.060979] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.073311] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 61.082364] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 61.097951] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.113226] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.121590] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.130233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.211026] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.224277] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.335997] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.363958] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.375215] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.400337] 8021q: adding VLAN 0 to HW filter on device team0 2018/11/06 21:00:29 executed programs: 6 2018/11/06 21:00:35 executed programs: 202 2018/11/06 21:00:40 executed programs: 416 2018/11/06 21:00:45 executed programs: 606 2018/11/06 21:00:50 executed programs: 781 [ 83.585166] vivid-000: kernel_thread() failed [ 83.654038] ================================================================== [ 83.661586] BUG: KASAN: null-ptr-deref in kthread_stop+0x10d/0x900 [ 83.667911] Write of size 4 at addr 000000000000001c by task syz-executor3/9678 [ 83.675341] [ 83.676969] CPU: 0 PID: 9678 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #101 [ 83.684232] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.693587] Call Trace: [ 83.696189] dump_stack+0x244/0x39d [ 83.699821] ? dump_stack_print_info.cold.1+0x20/0x20 [ 83.705019] ? vprintk_func+0x85/0x181 [ 83.708929] kasan_report.cold.8+0x6d/0x309 [ 83.713249] ? kthread_stop+0x10d/0x900 [ 83.717228] check_memory_region+0x13e/0x1b0 [ 83.721644] kasan_check_write+0x14/0x20 [ 83.725696] kthread_stop+0x10d/0x900 [ 83.729484] ? kthread_unpark+0x160/0x160 [ 83.733637] ? __lock_is_held+0xb5/0x140 [ 83.737713] vivid_stop_generating_vid_cap+0x2bb/0x9ae [ 83.742979] ? vivid_start_generating_vid_cap+0x4c0/0x4c0 [ 83.748507] ? _vb2_fop_release+0x3f/0x2b0 [ 83.752745] ? mutex_trylock+0x2b0/0x2b0 [ 83.756805] ? vivid_fop_release+0x66/0x440 [ 83.761114] ? __mutex_lock+0x85e/0x16f0 [ 83.765175] vid_cap_stop_streaming+0x8d/0xe0 [ 83.769710] ? vid_cap_buf_queue+0x310/0x310 [ 83.774171] __vb2_queue_cancel+0x171/0xd20 [ 83.778491] ? lock_downgrade+0x900/0x900 [ 83.782627] ? vb2_buffer_done+0xb90/0xb90 [ 83.786848] ? find_held_lock+0x36/0x1c0 [ 83.790917] ? mark_held_locks+0xc7/0x130 [ 83.795072] ? kasan_check_write+0x14/0x20 [ 83.799301] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 83.804220] ? kasan_check_read+0x11/0x20 [ 83.808356] ? wait_for_completion+0x8a0/0x8a0 [ 83.812945] ? trace_hardirqs_off_caller+0x310/0x310 [ 83.818082] ? vfs_lock_file+0xe0/0xe0 [ 83.821981] vb2_core_streamoff+0x60/0x140 [ 83.826208] __vb2_cleanup_fileio+0x73/0x160 [ 83.830799] vb2_core_queue_release+0x1e/0x80 [ 83.835508] _vb2_fop_release+0x1d2/0x2b0 [ 83.839656] vb2_fop_release+0x77/0xc0 [ 83.843583] vivid_fop_release+0x18e/0x440 [ 83.847830] ? vivid_remove+0x460/0x460 [ 83.851797] v4l2_release+0x224/0x3a0 [ 83.855599] ? dev_debug_store+0x140/0x140 [ 83.859835] __fput+0x385/0xa30 [ 83.863108] ? get_max_files+0x20/0x20 [ 83.867002] ? trace_hardirqs_on+0xbd/0x310 [ 83.871342] ? kasan_check_read+0x11/0x20 [ 83.875495] ? task_work_run+0x1af/0x2a0 [ 83.879563] ? trace_hardirqs_off_caller+0x310/0x310 [ 83.884668] ? filp_close+0x1cd/0x250 [ 83.888458] ____fput+0x15/0x20 [ 83.891727] task_work_run+0x1e8/0x2a0 [ 83.895605] ? task_work_cancel+0x240/0x240 [ 83.899927] ? copy_fd_bitmaps+0x210/0x210 [ 83.904166] ? do_syscall_64+0x9a/0x820 [ 83.908129] exit_to_usermode_loop+0x318/0x380 [ 83.912700] ? __bpf_trace_sys_exit+0x30/0x30 [ 83.917195] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.922741] do_syscall_64+0x6be/0x820 [ 83.926644] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 83.932011] ? syscall_return_slowpath+0x5e0/0x5e0 [ 83.936939] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 83.941774] ? trace_hardirqs_on_caller+0x310/0x310 [ 83.946807] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 83.951824] ? prepare_exit_to_usermode+0x291/0x3b0 [ 83.956829] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 83.961675] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 83.966864] RIP: 0033:0x411021 [ 83.970063] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 83.988953] RSP: 002b:00007fff7cfc04b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 83.996648] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000411021 [ 84.003904] RDX: 0000000000000000 RSI: 0000000000730578 RDI: 0000000000000003 [ 84.011165] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 84.018422] R10: 00007fff7cfc03d0 R11: 0000000000000293 R12: 0000000000000000 [ 84.025680] R13: 0000000000000001 R14: 0000000000000083 R15: 0000000000000003 [ 84.032948] ================================================================== [ 84.040287] Disabling lock debugging due to kernel taint [ 84.046671] Kernel panic - not syncing: panic_on_warn set ... [ 84.052575] CPU: 0 PID: 9678 Comm: syz-executor3 Tainted: G B 4.20.0-rc1+ #101 [ 84.061310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.070661] Call Trace: [ 84.073239] dump_stack+0x244/0x39d [ 84.076868] ? dump_stack_print_info.cold.1+0x20/0x20 [ 84.082068] panic+0x2ad/0x55c [ 84.085260] ? add_taint.cold.5+0x16/0x16 [ 84.089420] ? preempt_schedule+0x4d/0x60 [ 84.093576] ? ___preempt_schedule+0x16/0x18 [ 84.098001] ? trace_hardirqs_on+0xb4/0x310 [ 84.102332] kasan_end_report+0x47/0x4f [ 84.106296] kasan_report.cold.8+0x76/0x309 [ 84.110615] ? kthread_stop+0x10d/0x900 [ 84.114592] check_memory_region+0x13e/0x1b0 [ 84.118991] kasan_check_write+0x14/0x20 [ 84.123058] kthread_stop+0x10d/0x900 [ 84.126849] ? kthread_unpark+0x160/0x160 [ 84.130987] ? __lock_is_held+0xb5/0x140 [ 84.135042] vivid_stop_generating_vid_cap+0x2bb/0x9ae [ 84.140307] ? vivid_start_generating_vid_cap+0x4c0/0x4c0 [ 84.145846] ? _vb2_fop_release+0x3f/0x2b0 [ 84.150082] ? mutex_trylock+0x2b0/0x2b0 [ 84.154127] ? vivid_fop_release+0x66/0x440 [ 84.158434] ? __mutex_lock+0x85e/0x16f0 [ 84.162525] vid_cap_stop_streaming+0x8d/0xe0 [ 84.167033] ? vid_cap_buf_queue+0x310/0x310 [ 84.171435] __vb2_queue_cancel+0x171/0xd20 [ 84.175746] ? lock_downgrade+0x900/0x900 [ 84.179880] ? vb2_buffer_done+0xb90/0xb90 [ 84.184097] ? find_held_lock+0x36/0x1c0 [ 84.188144] ? mark_held_locks+0xc7/0x130 [ 84.192279] ? kasan_check_write+0x14/0x20 [ 84.196502] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 84.201425] ? kasan_check_read+0x11/0x20 [ 84.205568] ? wait_for_completion+0x8a0/0x8a0 [ 84.210145] ? trace_hardirqs_off_caller+0x310/0x310 [ 84.215242] ? vfs_lock_file+0xe0/0xe0 [ 84.219116] vb2_core_streamoff+0x60/0x140 [ 84.223361] __vb2_cleanup_fileio+0x73/0x160 [ 84.227790] vb2_core_queue_release+0x1e/0x80 [ 84.232287] _vb2_fop_release+0x1d2/0x2b0 [ 84.236422] vb2_fop_release+0x77/0xc0 [ 84.240295] vivid_fop_release+0x18e/0x440 [ 84.244516] ? vivid_remove+0x460/0x460 [ 84.248493] v4l2_release+0x224/0x3a0 [ 84.252313] ? dev_debug_store+0x140/0x140 [ 84.256568] __fput+0x385/0xa30 [ 84.259854] ? get_max_files+0x20/0x20 [ 84.263755] ? trace_hardirqs_on+0xbd/0x310 [ 84.268063] ? kasan_check_read+0x11/0x20 [ 84.272196] ? task_work_run+0x1af/0x2a0 [ 84.276241] ? trace_hardirqs_off_caller+0x310/0x310 [ 84.281329] ? filp_close+0x1cd/0x250 [ 84.285135] ____fput+0x15/0x20 [ 84.288402] task_work_run+0x1e8/0x2a0 [ 84.292277] ? task_work_cancel+0x240/0x240 [ 84.296600] ? copy_fd_bitmaps+0x210/0x210 [ 84.300854] ? do_syscall_64+0x9a/0x820 [ 84.304817] exit_to_usermode_loop+0x318/0x380 [ 84.309387] ? __bpf_trace_sys_exit+0x30/0x30 [ 84.313870] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 84.319411] do_syscall_64+0x6be/0x820 [ 84.323286] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 84.328640] ? syscall_return_slowpath+0x5e0/0x5e0 [ 84.333561] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 84.338404] ? trace_hardirqs_on_caller+0x310/0x310 [ 84.343424] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 84.348425] ? prepare_exit_to_usermode+0x291/0x3b0 [ 84.353430] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 84.358264] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.363440] RIP: 0033:0x411021 [ 84.366619] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 84.385526] RSP: 002b:00007fff7cfc04b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 84.393218] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000411021 [ 84.400468] RDX: 0000000000000000 RSI: 0000000000730578 RDI: 0000000000000003 [ 84.407719] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 84.414970] R10: 00007fff7cfc03d0 R11: 0000000000000293 R12: 0000000000000000 [ 84.422236] R13: 0000000000000001 R14: 0000000000000083 R15: 0000000000000003 [ 84.430584] Kernel Offset: disabled [ 84.434208] Rebooting in 86400 seconds..