[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.33' (ECDSA) to the list of known hosts. 2020/12/23 07:09:50 parsed 1 programs 2020/12/23 07:09:50 executed programs: 0 syzkaller login: [ 30.982432] IPVS: ftp: loaded support on port[0] = 21 [ 31.069656] chnl_net:caif_netlink_parms(): no params data found [ 31.143802] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.150602] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.159101] device bridge_slave_0 entered promiscuous mode [ 31.165968] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.172609] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.179916] device bridge_slave_1 entered promiscuous mode [ 31.196246] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 31.204862] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 31.222429] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 31.230007] team0: Port device team_slave_0 added [ 31.235319] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 31.242569] team0: Port device team_slave_1 added [ 31.256585] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 31.262925] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 31.288188] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 31.299586] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 31.305825] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 31.331080] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 31.341683] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 31.349179] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 31.366944] device hsr_slave_0 entered promiscuous mode [ 31.372927] device hsr_slave_1 entered promiscuous mode [ 31.379073] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 31.386037] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 31.445336] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.451771] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.458686] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.465032] bridge0: port 1(bridge_slave_0) entered forwarding state [ 31.492559] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 31.499766] 8021q: adding VLAN 0 to HW filter on device bond0 [ 31.509170] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 31.517867] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 31.536062] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.543201] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.553356] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 31.559715] 8021q: adding VLAN 0 to HW filter on device team0 [ 31.567904] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 31.575455] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.581831] bridge0: port 1(bridge_slave_0) entered forwarding state [ 31.592196] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 31.600229] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.606564] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.624084] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 31.634324] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 31.645650] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 31.652753] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 31.660592] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 31.668674] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 31.676271] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 31.684211] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 31.691214] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 31.701868] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 31.709969] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 31.716618] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 31.728154] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 31.775756] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 31.785179] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 31.810555] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 31.818171] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 31.824716] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 31.834182] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 31.841946] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 31.849145] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 31.857801] device veth0_vlan entered promiscuous mode [ 31.866234] device veth1_vlan entered promiscuous mode [ 31.872693] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 31.881912] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 31.892639] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 31.901928] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 31.909640] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 31.917429] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 31.926095] device veth0_macvtap entered promiscuous mode [ 31.932420] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 31.941181] device veth1_macvtap entered promiscuous mode [ 31.949549] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 31.959016] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 31.969046] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 31.975709] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 31.984183] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 31.993698] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 32.000914] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 32.057801] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 33.016770] Bluetooth: hci0 command 0x0409 tx timeout 2020/12/23 07:09:55 executed programs: 185 [ 35.104553] Bluetooth: hci0 command 0x041b tx timeout [ 37.173677] Bluetooth: hci0 command 0x040f tx timeout [ 39.252601] Bluetooth: hci0 command 0x0419 tx timeout 2020/12/23 07:10:00 executed programs: 779 2020/12/23 07:10:05 executed programs: 1430 [ 49.429230] ------------[ cut here ]------------ [ 49.434018] WARNING: CPU: 0 PID: 14628 at drivers/gpu/drm/drm_prime.c:898 drm_prime_destroy_file_private+0x3e/0x50 [ 49.444478] Kernel panic - not syncing: panic_on_warn set ... [ 49.444478] [ 49.451984] CPU: 0 PID: 14628 Comm: syz-executor.0 Not tainted 4.14.212-syzkaller #0 [ 49.459837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.469186] Call Trace: [ 49.471760] dump_stack+0x1b2/0x283 [ 49.475370] panic+0x1f9/0x42d [ 49.478541] ? add_taint.cold+0x16/0x16 [ 49.482511] ? drm_prime_destroy_file_private+0x3e/0x50 [ 49.487861] ? drm_prime_destroy_file_private+0x3e/0x50 [ 49.493203] __warn.cold+0x20/0x4b [ 49.496753] ? ist_end_non_atomic+0x10/0x10 [ 49.501061] ? drm_prime_destroy_file_private+0x3e/0x50 [ 49.506418] report_bug+0x208/0x249 [ 49.510029] do_error_trap+0x195/0x2d0 [ 49.513892] ? math_error+0x2d0/0x2d0 [ 49.517668] ? lock_downgrade+0x740/0x740 [ 49.521795] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.526617] invalid_op+0x1b/0x40 [ 49.530052] RIP: 0010:drm_prime_destroy_file_private+0x3e/0x50 [ 49.536001] RSP: 0018:ffff8880afaffd60 EFLAGS: 00010297 [ 49.541339] RAX: ffff8880b058c680 RBX: ffff8880b3cd5938 RCX: 1ffff110160b19e5 [ 49.548619] RDX: 0000000000000000 RSI: ffff8880b058cf08 RDI: ffff8880b3cd59b8 [ 49.555882] RBP: ffffffff838852d0 R08: 0000000000000000 R09: 0000000000000000 [ 49.563150] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b3cd56c0 [ 49.570413] R13: ffff8882384c0e80 R14: ffff8880b3cd5878 R15: ffff8880b3cd58a0 [ 49.577674] ? vgem_gem_free_object+0xd0/0xd0 [ 49.582153] drm_release+0xaf9/0xfa0 [ 49.585849] ? ima_file_free+0x4f/0x330 [ 49.589817] ? drm_lastclose+0x2b0/0x2b0 [ 49.593866] __fput+0x25f/0x7a0 [ 49.597125] task_work_run+0x11f/0x190 [ 49.600994] exit_to_usermode_loop+0x1ad/0x200 [ 49.605620] ? SyS_ioctl+0x5c/0xb0 [ 49.609147] do_syscall_64+0x4a3/0x640 [ 49.613015] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 49.618219] RIP: 0033:0x45e149 [ 49.621398] RSP: 002b:00007f7092411c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 49.629091] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 000000000045e149 [ 49.636343] RDX: 0000000020000140 RSI: 00000000c10c5541 RDI: 0000000000000003 [ 49.643587] RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000 [ 49.650866] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c [ 49.658122] R13: 00007ffe93e7747f R14: 00007f70924129c0 R15: 000000000119bf8c [ 49.666130] Kernel Offset: disabled [ 49.669802] Rebooting in 86400 seconds..