[info] Using makefile-style concurrent boot in runlevel 2. [ 22.268421] audit: type=1800 audit(1541763112.887:21): pid=5427 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 22.288173] audit: type=1800 audit(1541763112.907:22): pid=5427 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 syzkaller login: [ 38.449960] sshd (5568) used greatest stack depth: 15744 bytes left Warning: Permanently added '10.128.10.42' (ECDSA) to the list of known hosts. 2018/11/09 11:32:35 parsed 1 programs 2018/11/09 11:32:37 executed programs: 0 [ 66.780383] IPVS: ftp: loaded support on port[0] = 21 [ 66.782432] IPVS: ftp: loaded support on port[0] = 21 [ 66.788049] IPVS: ftp: loaded support on port[0] = 21 [ 66.796106] IPVS: ftp: loaded support on port[0] = 21 [ 66.799104] IPVS: ftp: loaded support on port[0] = 21 [ 66.805987] IPVS: ftp: loaded support on port[0] = 21 [ 67.722089] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.740462] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.752467] device bridge_slave_0 entered promiscuous mode [ 67.796480] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.806407] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.821684] device bridge_slave_0 entered promiscuous mode [ 67.830133] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.837455] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.845173] device bridge_slave_0 entered promiscuous mode [ 67.861274] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.867634] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.877453] device bridge_slave_1 entered promiscuous mode [ 67.886168] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.896105] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.903745] device bridge_slave_0 entered promiscuous mode [ 67.910389] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.917109] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.924851] device bridge_slave_0 entered promiscuous mode [ 67.933449] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.939813] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.947155] device bridge_slave_1 entered promiscuous mode [ 67.955352] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 67.965010] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.973278] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.980488] device bridge_slave_1 entered promiscuous mode [ 67.989124] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.000623] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.009072] device bridge_slave_1 entered promiscuous mode [ 68.015761] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.022522] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.029508] device bridge_slave_0 entered promiscuous mode [ 68.040815] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 68.048279] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 68.058353] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 68.068242] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.078392] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.095535] device bridge_slave_1 entered promiscuous mode [ 68.103716] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 68.112741] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 68.122370] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.128785] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.137809] device bridge_slave_1 entered promiscuous mode [ 68.152855] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 68.173826] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 68.198064] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 68.241845] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 68.269290] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 68.285092] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 68.306087] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 68.320955] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 68.375862] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 68.401130] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 68.410122] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 68.450491] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 68.467921] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 68.478898] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 68.496320] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 68.506503] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.518005] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.529674] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 68.540273] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 68.549989] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 68.558873] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 68.570801] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 68.578594] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 68.594511] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.612969] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.621709] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.632073] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 68.639972] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 68.655111] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 68.675916] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.689693] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 68.697346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.730643] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 68.739165] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.761207] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 68.777847] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 68.791235] team0: Port device team_slave_0 added [ 68.797109] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.810731] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 68.818904] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 68.827634] team0: Port device team_slave_1 added [ 68.837738] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 68.845574] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.856370] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.876055] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 68.886457] team0: Port device team_slave_0 added [ 68.902757] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.932898] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 68.940004] team0: Port device team_slave_0 added [ 68.960044] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 68.968713] team0: Port device team_slave_1 added [ 68.989993] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.007681] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 69.022189] team0: Port device team_slave_1 added [ 69.034182] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 69.048402] team0: Port device team_slave_0 added [ 69.059576] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.070123] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 69.086370] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.095841] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.106226] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.122651] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 69.129753] team0: Port device team_slave_0 added [ 69.137104] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 69.146311] team0: Port device team_slave_0 added [ 69.154255] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 69.166440] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 69.174877] team0: Port device team_slave_1 added [ 69.189522] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.199757] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.208442] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.221233] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 69.228523] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.244043] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.252329] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.263289] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 69.270893] team0: Port device team_slave_1 added [ 69.276167] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 69.284707] team0: Port device team_slave_1 added [ 69.295588] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 69.308677] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 69.321634] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.332093] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.343798] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.351768] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.359573] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.373918] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 69.391299] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.399024] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.425284] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.433288] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.441393] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.457543] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 69.468164] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.477638] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.492235] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 69.499536] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.509434] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.523401] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 69.531021] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.538562] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.563368] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 69.571006] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.578785] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.606829] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 69.616073] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 69.630814] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.640992] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.654230] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.662614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.673091] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 69.690756] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 69.705864] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.719491] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.739331] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.748024] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.006051] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.012575] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.019573] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.025991] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.034849] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 70.042659] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.049046] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.055697] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.062073] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.074684] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 70.234299] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.240728] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.247319] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.253694] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.273733] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 70.393848] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.400224] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.406837] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.413192] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.423594] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 70.451406] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.457756] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.464393] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.470749] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.491235] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 70.497550] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.505010] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.512188] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.519159] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.526284] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.535453] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.541838] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.548419] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.554787] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.561870] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 71.527478] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 72.568525] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.587156] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.610131] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.772261] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 72.785841] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 72.878936] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.889237] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.909172] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 73.000668] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.009781] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 73.023954] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 73.030143] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.042561] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.049542] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.067503] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.095156] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 73.121239] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 73.177395] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 73.192119] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.199087] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.230730] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.275724] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 73.285518] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 73.302406] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.312894] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.327935] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.393522] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 73.415577] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.422780] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.432934] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.511496] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 73.520203] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.530261] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.561467] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.641293] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.725217] 8021q: adding VLAN 0 to HW filter on device team0 2018/11/09 11:32:45 executed programs: 6 2018/11/09 11:32:50 executed programs: 268 2018/11/09 11:32:55 executed programs: 533 2018/11/09 11:33:00 executed programs: 809 [ 90.504686] vivid-000: kernel_thread() failed [ 90.519539] ================================================================== [ 90.527020] BUG: KASAN: null-ptr-deref in kthread_stop+0x10d/0x900 [ 90.533352] Write of size 4 at addr 000000000000001c by task syz-executor3/10914 [ 90.540884] [ 90.542514] CPU: 1 PID: 10914 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #327 [ 90.549860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.549866] Call Trace: [ 90.549890] dump_stack+0x244/0x39d [ 90.549908] ? dump_stack_print_info.cold.1+0x20/0x20 [ 90.549924] ? vprintk_func+0x85/0x181 [ 90.549940] kasan_report.cold.8+0x6d/0x309 [ 90.549952] ? kthread_stop+0x10d/0x900 [ 90.565541] check_memory_region+0x13e/0x1b0 [ 90.565557] kasan_check_write+0x14/0x20 [ 90.565571] kthread_stop+0x10d/0x900 [ 90.565585] ? kthread_unpark+0x160/0x160 [ 90.565606] ? __lock_is_held+0xb5/0x140 [ 90.565638] vivid_stop_generating_vid_cap+0x2bb/0x9ae [ 90.574680] ? vivid_start_generating_vid_cap+0x4c0/0x4c0 [ 90.574696] ? _vb2_fop_release+0x3f/0x2b0 [ 90.574717] ? mutex_trylock+0x2b0/0x2b0 [ 90.574730] ? vivid_fop_release+0x66/0x440 [ 90.574743] ? __mutex_lock+0x85e/0x16f0 [ 90.574768] vid_cap_stop_streaming+0x8d/0xe0 [ 90.574782] ? vid_cap_buf_queue+0x310/0x310 [ 90.583036] __vb2_queue_cancel+0x171/0xd20 [ 90.583054] ? lock_downgrade+0x900/0x900 [ 90.583072] ? vb2_buffer_done+0xb90/0xb90 [ 90.583085] ? find_held_lock+0x36/0x1c0 [ 90.583107] ? mark_held_locks+0xc7/0x130 [ 90.583127] ? kasan_check_write+0x14/0x20 [ 90.583142] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 90.583157] ? kasan_check_read+0x11/0x20 [ 90.583171] ? wait_for_completion+0x8a0/0x8a0 [ 90.583185] ? trace_hardirqs_off_caller+0x310/0x310 [ 90.583202] ? ep_modify+0xc10/0xc10 [ 90.591632] vb2_core_streamoff+0x60/0x140 [ 90.591648] __vb2_cleanup_fileio+0x73/0x160 [ 90.591663] vb2_core_queue_release+0x1e/0x80 [ 90.591679] _vb2_fop_release+0x1d2/0x2b0 [ 90.591696] vb2_fop_release+0x77/0xc0 [ 90.591711] vivid_fop_release+0x18e/0x440 [ 90.591726] ? vivid_remove+0x460/0x460 [ 90.591738] v4l2_release+0x224/0x3a0 [ 90.591753] ? dev_debug_store+0x140/0x140 [ 90.591765] __fput+0x385/0xa30 [ 90.591783] ? get_max_files+0x20/0x20 [ 90.599685] ? trace_hardirqs_on+0xbd/0x310 [ 90.599699] ? kasan_check_read+0x11/0x20 [ 90.599712] ? task_work_run+0x1af/0x2a0 [ 90.599727] ? trace_hardirqs_off_caller+0x310/0x310 [ 90.599743] ? filp_close+0x1cd/0x250 [ 90.599763] ____fput+0x15/0x20 [ 90.599777] task_work_run+0x1e8/0x2a0 [ 90.599808] ? task_work_cancel+0x240/0x240 [ 90.599826] ? copy_fd_bitmaps+0x210/0x210 [ 90.769230] ? do_syscall_64+0x9a/0x820 [ 90.773203] exit_to_usermode_loop+0x318/0x380 [ 90.777771] ? __bpf_trace_sys_exit+0x30/0x30 [ 90.782254] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.787776] do_syscall_64+0x6be/0x820 [ 90.791660] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 90.797065] ? syscall_return_slowpath+0x5e0/0x5e0 [ 90.801980] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 90.806807] ? trace_hardirqs_on_caller+0x310/0x310 [ 90.811811] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 90.816838] ? prepare_exit_to_usermode+0x291/0x3b0 [ 90.821881] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 90.826735] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 90.831929] RIP: 0033:0x457569 [ 90.835117] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 90.854009] RSP: 002b:00007ff1e1211c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 90.861715] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000457569 [ 90.868975] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 90.876241] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 90.883494] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff1e12126d4 [ 90.890747] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 00000000ffffffff [ 90.898016] ================================================================== [ 90.905353] Disabling lock debugging due to kernel taint [ 90.911224] Kernel panic - not syncing: panic_on_warn set ... [ 90.917115] CPU: 1 PID: 10914 Comm: syz-executor3 Tainted: G B 4.20.0-rc1+ #327 [ 90.925857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.935193] Call Trace: [ 90.937770] dump_stack+0x244/0x39d [ 90.941398] ? dump_stack_print_info.cold.1+0x20/0x20 [ 90.946576] panic+0x2ad/0x55c [ 90.949757] ? add_taint.cold.5+0x16/0x16 [ 90.953908] ? preempt_schedule+0x4d/0x60 [ 90.958036] ? ___preempt_schedule+0x16/0x18 [ 90.962423] ? trace_hardirqs_on+0xb4/0x310 [ 90.966725] kasan_end_report+0x47/0x4f [ 90.970677] kasan_report.cold.8+0x76/0x309 [ 90.974976] ? kthread_stop+0x10d/0x900 [ 90.978932] check_memory_region+0x13e/0x1b0 [ 90.983324] kasan_check_write+0x14/0x20 [ 90.987366] kthread_stop+0x10d/0x900 [ 90.991152] ? kthread_unpark+0x160/0x160 [ 90.995280] ? __lock_is_held+0xb5/0x140 [ 90.999328] vivid_stop_generating_vid_cap+0x2bb/0x9ae [ 91.004590] ? vivid_start_generating_vid_cap+0x4c0/0x4c0 [ 91.010111] ? _vb2_fop_release+0x3f/0x2b0 [ 91.014334] ? mutex_trylock+0x2b0/0x2b0 [ 91.018373] ? vivid_fop_release+0x66/0x440 [ 91.022687] ? __mutex_lock+0x85e/0x16f0 [ 91.026752] vid_cap_stop_streaming+0x8d/0xe0 [ 91.031245] ? vid_cap_buf_queue+0x310/0x310 [ 91.035648] __vb2_queue_cancel+0x171/0xd20 [ 91.039956] ? lock_downgrade+0x900/0x900 [ 91.044082] ? vb2_buffer_done+0xb90/0xb90 [ 91.048307] ? find_held_lock+0x36/0x1c0 [ 91.052364] ? mark_held_locks+0xc7/0x130 [ 91.056517] ? kasan_check_write+0x14/0x20 [ 91.060739] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 91.065646] ? kasan_check_read+0x11/0x20 [ 91.069789] ? wait_for_completion+0x8a0/0x8a0 [ 91.074362] ? trace_hardirqs_off_caller+0x310/0x310 [ 91.079460] ? ep_modify+0xc10/0xc10 [ 91.083168] vb2_core_streamoff+0x60/0x140 [ 91.087391] __vb2_cleanup_fileio+0x73/0x160 [ 91.091796] vb2_core_queue_release+0x1e/0x80 [ 91.096291] _vb2_fop_release+0x1d2/0x2b0 [ 91.100432] vb2_fop_release+0x77/0xc0 [ 91.104312] vivid_fop_release+0x18e/0x440 [ 91.108533] ? vivid_remove+0x460/0x460 [ 91.112495] v4l2_release+0x224/0x3a0 [ 91.116280] ? dev_debug_store+0x140/0x140 [ 91.120501] __fput+0x385/0xa30 [ 91.123779] ? get_max_files+0x20/0x20 [ 91.127674] ? trace_hardirqs_on+0xbd/0x310 [ 91.131989] ? kasan_check_read+0x11/0x20 [ 91.136139] ? task_work_run+0x1af/0x2a0 [ 91.140188] ? trace_hardirqs_off_caller+0x310/0x310 [ 91.145282] ? filp_close+0x1cd/0x250 [ 91.149071] ____fput+0x15/0x20 [ 91.152334] task_work_run+0x1e8/0x2a0 [ 91.156207] ? task_work_cancel+0x240/0x240 [ 91.160523] ? copy_fd_bitmaps+0x210/0x210 [ 91.164751] ? do_syscall_64+0x9a/0x820 [ 91.168708] exit_to_usermode_loop+0x318/0x380 [ 91.173275] ? __bpf_trace_sys_exit+0x30/0x30 [ 91.177774] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.183299] do_syscall_64+0x6be/0x820 [ 91.187174] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 91.192522] ? syscall_return_slowpath+0x5e0/0x5e0 [ 91.197436] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 91.202279] ? trace_hardirqs_on_caller+0x310/0x310 [ 91.207279] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 91.212282] ? prepare_exit_to_usermode+0x291/0x3b0 [ 91.217299] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 91.222139] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.227313] RIP: 0033:0x457569 [ 91.230500] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 91.249389] RSP: 002b:00007ff1e1211c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 91.257080] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000457569 [ 91.264339] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 91.271618] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 91.278873] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff1e12126d4 [ 91.286126] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 00000000ffffffff [ 91.294615] Kernel Offset: disabled [ 91.298237] Rebooting in 86400 seconds..