[info] Using makefile-style concurrent boot in runlevel 2. [ 24.296835] audit: type=1800 audit(1541680522.131:21): pid=5496 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.325599] audit: type=1800 audit(1541680522.131:22): pid=5496 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 Warning: Permanently added '10.128.0.43' (ECDSA) to the list of known hosts. 2018/11/08 12:36:12 parsed 1 programs 2018/11/08 12:36:15 executed programs: 0 syzkaller login: [ 77.234210] IPVS: ftp: loaded support on port[0] = 21 [ 77.265120] IPVS: ftp: loaded support on port[0] = 21 [ 77.274785] IPVS: ftp: loaded support on port[0] = 21 [ 77.278443] IPVS: ftp: loaded support on port[0] = 21 [ 77.291710] IPVS: ftp: loaded support on port[0] = 21 [ 77.300916] IPVS: ftp: loaded support on port[0] = 21 [ 78.490081] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.499432] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.515124] device bridge_slave_0 entered promiscuous mode [ 78.525783] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.536209] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.543938] device bridge_slave_0 entered promiscuous mode [ 78.553954] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.562936] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.570161] device bridge_slave_0 entered promiscuous mode [ 78.577921] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.584268] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.593844] device bridge_slave_0 entered promiscuous mode [ 78.602960] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.610310] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.617984] device bridge_slave_0 entered promiscuous mode [ 78.627447] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.637294] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.644604] device bridge_slave_1 entered promiscuous mode [ 78.653659] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.661213] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.669283] device bridge_slave_1 entered promiscuous mode [ 78.677613] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.684056] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.692720] device bridge_slave_1 entered promiscuous mode [ 78.707147] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.713587] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.730510] device bridge_slave_1 entered promiscuous mode [ 78.738923] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 78.747423] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.753781] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.763283] device bridge_slave_1 entered promiscuous mode [ 78.771793] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.781731] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.789469] device bridge_slave_0 entered promiscuous mode [ 78.796970] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 78.809007] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 78.818551] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 78.828196] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 78.842745] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 78.856844] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 78.873066] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.885283] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.894180] device bridge_slave_1 entered promiscuous mode [ 78.904235] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 78.922099] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 78.931799] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 78.954009] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 79.059467] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 79.070931] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 79.098766] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 79.115126] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 79.141353] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 79.159527] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 79.186877] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 79.196175] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 79.211466] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 79.227070] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 79.247454] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 79.256057] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 79.268856] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.291249] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.301549] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 79.314127] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 79.333131] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 79.351993] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.366722] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.374434] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.384577] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 79.392997] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 79.404417] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 79.418889] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 79.426509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.434703] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.449520] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 79.459090] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 79.481933] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.497929] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.520173] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 79.528317] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.558148] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 79.620139] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 79.637273] team0: Port device team_slave_0 added [ 79.650163] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 79.665845] team0: Port device team_slave_0 added [ 79.676805] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 79.685381] team0: Port device team_slave_0 added [ 79.693284] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 79.701788] team0: Port device team_slave_0 added [ 79.719273] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 79.730175] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.741212] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 79.751902] team0: Port device team_slave_1 added [ 79.760312] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 79.768842] team0: Port device team_slave_1 added [ 79.783299] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 79.791902] team0: Port device team_slave_1 added [ 79.800118] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 79.809541] team0: Port device team_slave_0 added [ 79.820505] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 79.831399] team0: Port device team_slave_1 added [ 79.867060] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.877883] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.891965] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.903147] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 79.910571] team0: Port device team_slave_1 added [ 79.942626] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.950586] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.966893] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.979120] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 79.996894] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.004541] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.013811] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.035006] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.048585] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.064126] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 80.073038] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 80.083425] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 80.096579] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.108480] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.117417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.126876] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.134686] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.142794] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.150637] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.161730] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 80.174865] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 80.184778] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 80.202127] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 80.212154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.222378] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.231621] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.240909] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.249206] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.257211] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.264862] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.272919] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.282984] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 80.290390] team0: Port device team_slave_0 added [ 80.297913] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 80.305739] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 80.328931] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.337368] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.354031] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.362148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.383721] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 80.399072] team0: Port device team_slave_1 added [ 80.463419] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 80.482492] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 80.497441] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.556165] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 80.564162] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 80.577582] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.631558] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 80.643976] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.657132] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.675962] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 80.704586] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.713196] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 81.008989] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.015439] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.022493] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.029203] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.037375] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 81.048723] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.055090] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.061720] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.068078] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.095103] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 81.102982] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.109398] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.116062] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.122469] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.130846] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 81.147512] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.153967] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.160670] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.167074] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.176518] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 81.208321] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.214726] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.221415] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.227824] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.248091] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 81.327488] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 81.344977] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 81.353193] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 81.366070] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 81.374166] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 81.546069] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.552528] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.559233] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.565596] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.574885] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 82.410084] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 83.609341] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.732838] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.771710] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.784565] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.856657] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 83.877717] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.981535] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 83.995478] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 84.028993] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 84.112144] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 84.119073] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 84.129363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.147302] 8021q: adding VLAN 0 to HW filter on device bond0 [ 84.162156] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 84.243516] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 84.262260] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 84.276224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.290586] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 84.308512] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 84.315485] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.335396] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 84.353230] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 84.370047] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.407710] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.427282] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 84.433453] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 84.443809] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.459544] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 84.535631] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.574605] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.629817] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.660695] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.709802] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 84.715993] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 84.726009] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.926856] 8021q: adding VLAN 0 to HW filter on device team0 2018/11/08 12:36:23 executed programs: 6 2018/11/08 12:36:28 executed programs: 296 [ 92.512777] vivid-000: kernel_thread() failed [ 92.577217] ================================================================== [ 92.584785] BUG: KASAN: null-ptr-deref in kthread_stop+0x10d/0x900 [ 92.591123] Write of size 4 at addr 000000000000001c by task syz-executor0/8769 [ 92.591130] [ 92.591145] CPU: 0 PID: 8769 Comm: syz-executor0 Not tainted 4.20.0-rc1+ #228 [ 92.591153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.591158] Call Trace: [ 92.591175] dump_stack+0x244/0x39d [ 92.591193] ? dump_stack_print_info.cold.1+0x20/0x20 [ 92.591210] ? vprintk_func+0x85/0x181 [ 92.591233] kasan_report.cold.8+0x6d/0x309 [ 92.637374] ? kthread_stop+0x10d/0x900 [ 92.637396] check_memory_region+0x13e/0x1b0 [ 92.637413] kasan_check_write+0x14/0x20 [ 92.637426] kthread_stop+0x10d/0x900 [ 92.637443] ? kthread_unpark+0x160/0x160 [ 92.657822] ? __lock_is_held+0xb5/0x140 [ 92.661905] vivid_stop_generating_vid_cap+0x2bb/0x9ae [ 92.667196] ? vivid_start_generating_vid_cap+0x4c0/0x4c0 [ 92.672749] ? _vb2_fop_release+0x3f/0x2b0 [ 92.677004] ? mutex_trylock+0x2b0/0x2b0 [ 92.681072] ? vivid_fop_release+0x66/0x440 [ 92.685400] ? __mutex_lock+0x85e/0x16f0 [ 92.689486] vid_cap_stop_streaming+0x8d/0xe0 [ 92.693989] ? vid_cap_buf_queue+0x310/0x310 [ 92.698385] __vb2_queue_cancel+0x171/0xd20 [ 92.702695] ? lock_downgrade+0x900/0x900 [ 92.706832] ? vb2_buffer_done+0xb90/0xb90 [ 92.711063] ? find_held_lock+0x36/0x1c0 [ 92.715122] ? mark_held_locks+0xc7/0x130 [ 92.719261] ? kasan_check_write+0x14/0x20 [ 92.723538] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 92.728465] ? kasan_check_read+0x11/0x20 [ 92.732601] ? wait_for_completion+0x8a0/0x8a0 [ 92.737169] ? trace_hardirqs_off_caller+0x310/0x310 [ 92.742257] ? ep_modify+0xc10/0xc10 [ 92.746424] vb2_core_streamoff+0x60/0x140 [ 92.750652] __vb2_cleanup_fileio+0x73/0x160 [ 92.755047] vb2_core_queue_release+0x1e/0x80 [ 92.759542] _vb2_fop_release+0x1d2/0x2b0 [ 92.763687] vb2_fop_release+0x77/0xc0 [ 92.767565] vivid_fop_release+0x18e/0x440 [ 92.771788] ? vivid_remove+0x460/0x460 [ 92.775746] v4l2_release+0x224/0x3a0 [ 92.779536] ? dev_debug_store+0x140/0x140 [ 92.783765] __fput+0x385/0xa30 [ 92.787056] ? get_max_files+0x20/0x20 [ 92.790937] ? trace_hardirqs_on+0xbd/0x310 [ 92.795250] ? kasan_check_read+0x11/0x20 [ 92.799384] ? task_work_run+0x1af/0x2a0 [ 92.803443] ? trace_hardirqs_off_caller+0x310/0x310 [ 92.808540] ? filp_close+0x1cd/0x250 [ 92.812331] ____fput+0x15/0x20 [ 92.815598] task_work_run+0x1e8/0x2a0 [ 92.819474] ? task_work_cancel+0x240/0x240 [ 92.823785] ? copy_fd_bitmaps+0x210/0x210 [ 92.828004] ? do_fast_syscall_32+0x150/0xfb2 [ 92.832504] exit_to_usermode_loop+0x318/0x380 [ 92.837084] ? __bpf_trace_sys_exit+0x30/0x30 [ 92.841590] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.847133] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.852690] do_fast_syscall_32+0xcd5/0xfb2 [ 92.857353] ? do_int80_syscall_32+0x890/0x890 [ 92.861924] ? entry_SYSENTER_compat+0x68/0x7f [ 92.866507] ? trace_hardirqs_off_caller+0xbb/0x310 [ 92.871509] ? do_syscall_64+0x820/0x820 [ 92.875553] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 92.880381] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 92.885225] ? trace_hardirqs_on_caller+0x310/0x310 [ 92.890233] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 92.895238] ? prepare_exit_to_usermode+0x291/0x3b0 [ 92.900243] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 92.905086] entry_SYSENTER_compat+0x70/0x7f [ 92.909502] RIP: 0023:0xf7f5ca29 [ 92.912876] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 92.931778] RSP: 002b:000000000845fdac EFLAGS: 00000216 ORIG_RAX: 0000000000000006 [ 92.939486] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 92.946755] RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000000 [ 92.954010] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 92.961264] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 92.968516] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 92.975777] ================================================================== [ 92.983113] Disabling lock debugging due to kernel taint [ 92.990054] Kernel panic - not syncing: panic_on_warn set ... [ 92.995972] CPU: 0 PID: 8769 Comm: syz-executor0 Tainted: G B 4.20.0-rc1+ #228 [ 93.004616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.013954] Call Trace: [ 93.016537] dump_stack+0x244/0x39d [ 93.020159] ? dump_stack_print_info.cold.1+0x20/0x20 [ 93.025338] panic+0x2ad/0x55c [ 93.028527] ? add_taint.cold.5+0x16/0x16 [ 93.032673] ? preempt_schedule+0x4d/0x60 [ 93.036808] ? ___preempt_schedule+0x16/0x18 [ 93.041206] ? trace_hardirqs_on+0xb4/0x310 [ 93.045514] kasan_end_report+0x47/0x4f [ 93.049470] kasan_report.cold.8+0x76/0x309 [ 93.054137] ? kthread_stop+0x10d/0x900 [ 93.058109] check_memory_region+0x13e/0x1b0 [ 93.062502] kasan_check_write+0x14/0x20 [ 93.066548] kthread_stop+0x10d/0x900 [ 93.070335] ? kthread_unpark+0x160/0x160 [ 93.074491] ? __lock_is_held+0xb5/0x140 [ 93.078544] vivid_stop_generating_vid_cap+0x2bb/0x9ae [ 93.083813] ? vivid_start_generating_vid_cap+0x4c0/0x4c0 [ 93.089350] ? _vb2_fop_release+0x3f/0x2b0 [ 93.093592] ? mutex_trylock+0x2b0/0x2b0 [ 93.097636] ? vivid_fop_release+0x66/0x440 [ 93.101948] ? __mutex_lock+0x85e/0x16f0 [ 93.105999] vid_cap_stop_streaming+0x8d/0xe0 [ 93.110483] ? vid_cap_buf_queue+0x310/0x310 [ 93.114878] __vb2_queue_cancel+0x171/0xd20 [ 93.119193] ? lock_downgrade+0x900/0x900 [ 93.123325] ? vb2_buffer_done+0xb90/0xb90 [ 93.127543] ? find_held_lock+0x36/0x1c0 [ 93.131603] ? mark_held_locks+0xc7/0x130 [ 93.135751] ? kasan_check_write+0x14/0x20 [ 93.139972] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 93.144898] ? kasan_check_read+0x11/0x20 [ 93.149039] ? wait_for_completion+0x8a0/0x8a0 [ 93.153603] ? trace_hardirqs_off_caller+0x310/0x310 [ 93.158693] ? ep_modify+0xc10/0xc10 [ 93.162395] vb2_core_streamoff+0x60/0x140 [ 93.166613] __vb2_cleanup_fileio+0x73/0x160 [ 93.171006] vb2_core_queue_release+0x1e/0x80 [ 93.175484] _vb2_fop_release+0x1d2/0x2b0 [ 93.179616] vb2_fop_release+0x77/0xc0 [ 93.183501] vivid_fop_release+0x18e/0x440 [ 93.187724] ? vivid_remove+0x460/0x460 [ 93.191681] v4l2_release+0x224/0x3a0 [ 93.195462] ? dev_debug_store+0x140/0x140 [ 93.199680] __fput+0x385/0xa30 [ 93.202951] ? get_max_files+0x20/0x20 [ 93.206825] ? trace_hardirqs_on+0xbd/0x310 [ 93.211134] ? kasan_check_read+0x11/0x20 [ 93.215264] ? task_work_run+0x1af/0x2a0 [ 93.219310] ? trace_hardirqs_off_caller+0x310/0x310 [ 93.224401] ? filp_close+0x1cd/0x250 [ 93.228195] ____fput+0x15/0x20 [ 93.231465] task_work_run+0x1e8/0x2a0 [ 93.235342] ? task_work_cancel+0x240/0x240 [ 93.239650] ? copy_fd_bitmaps+0x210/0x210 [ 93.243872] ? do_fast_syscall_32+0x150/0xfb2 [ 93.248350] exit_to_usermode_loop+0x318/0x380 [ 93.252928] ? __bpf_trace_sys_exit+0x30/0x30 [ 93.257430] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.262969] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.268494] do_fast_syscall_32+0xcd5/0xfb2 [ 93.272821] ? do_int80_syscall_32+0x890/0x890 [ 93.277386] ? entry_SYSENTER_compat+0x68/0x7f [ 93.281955] ? trace_hardirqs_off_caller+0xbb/0x310 [ 93.287348] ? do_syscall_64+0x820/0x820 [ 93.291480] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 93.296305] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 93.301131] ? trace_hardirqs_on_caller+0x310/0x310 [ 93.306131] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 93.311143] ? prepare_exit_to_usermode+0x291/0x3b0 [ 93.316155] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 93.320998] entry_SYSENTER_compat+0x70/0x7f [ 93.325388] RIP: 0023:0xf7f5ca29 [ 93.328740] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 93.347621] RSP: 002b:000000000845fdac EFLAGS: 00000216 ORIG_RAX: 0000000000000006 [ 93.355312] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 93.362562] RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000000 [ 93.369813] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 93.377086] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 93.384345] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 93.392754] Kernel Offset: disabled [ 93.396379] Rebooting in 86400 seconds..