[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.49' (ECDSA) to the list of known hosts. 2021/04/16 03:48:15 parsed 1 programs 2021/04/16 03:48:15 executed programs: 0 syzkaller login: [ 42.384551] IPVS: ftp: loaded support on port[0] = 21 [ 42.482654] chnl_net:caif_netlink_parms(): no params data found [ 42.589248] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.596968] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.605719] device bridge_slave_0 entered promiscuous mode [ 42.614638] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.621450] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.629611] device bridge_slave_1 entered promiscuous mode [ 42.649758] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 42.660604] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 42.680546] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 42.688767] team0: Port device team_slave_0 added [ 42.696829] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 42.705319] team0: Port device team_slave_1 added [ 42.722424] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 42.729781] 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. [ 42.760070] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 42.773677] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 42.783354] 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. [ 42.812843] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 42.824893] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.834643] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.855993] device hsr_slave_0 entered promiscuous mode [ 42.862765] device hsr_slave_1 entered promiscuous mode [ 42.870154] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 42.878869] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 42.956691] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.967701] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.977538] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.985386] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.020841] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 43.029702] 8021q: adding VLAN 0 to HW filter on device bond0 [ 43.041448] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 43.054305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.066414] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.077763] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.087184] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 43.099777] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 43.107525] 8021q: adding VLAN 0 to HW filter on device team0 [ 43.119189] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 43.128614] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.136053] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.148347] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 43.157504] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.164643] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.184043] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 43.193989] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 43.207941] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 43.218587] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 43.230796] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 43.238471] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 43.246782] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 43.258082] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 43.266195] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 43.279381] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 43.288179] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 43.297044] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 43.309114] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 43.323212] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 43.335419] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 43.373199] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 43.381150] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 43.389614] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 43.400758] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 43.409860] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 43.417393] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 43.427618] device veth0_vlan entered promiscuous mode [ 43.437943] device veth1_vlan entered promiscuous mode [ 43.444685] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 43.456549] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 43.470457] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 43.480022] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 43.489168] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 43.500839] IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready [ 43.508894] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 43.517939] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 43.528985] device veth0_macvtap entered promiscuous mode [ 43.536724] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 43.546293] device veth1_macvtap entered promiscuous mode [ 43.553693] IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready [ 43.562995] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 43.572925] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 43.582882] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 43.591604] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 43.599222] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 43.607497] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 43.615533] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 43.624067] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 43.636470] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 43.645372] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 43.660190] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 43.668974] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 43.777019] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 43.785102] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 43.794738] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 43.814290] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 43.824159] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 43.834425] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 43.843917] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 43.853333] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 44.192906] ------------[ cut here ]------------ [ 44.199028] WARNING: CPU: 0 PID: 8418 at drivers/gpu/drm/drm_prime.c:982 drm_prime_destroy_file_private.cold+0x11/0x18 [ 44.214756] Kernel panic - not syncing: panic_on_warn set ... [ 44.214756] [ 44.222796] CPU: 0 PID: 8418 Comm: syz-executor.0 Not tainted 4.19.187-syzkaller #0 [ 44.231247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.241590] Call Trace: [ 44.244662] dump_stack+0x1fc/0x2ef [ 44.248901] panic+0x26a/0x50e [ 44.254507] ? __warn_printk+0xf3/0xf3 [ 44.258814] ? drm_prime_destroy_file_private.cold+0x11/0x18 [ 44.265217] ? __probe_kernel_read+0x130/0x1b0 [ 44.269791] ? __warn.cold+0x5/0x5a [ 44.273619] ? __warn+0xe4/0x200 [ 44.277286] ? drm_prime_destroy_file_private.cold+0x11/0x18 [ 44.284707] __warn.cold+0x20/0x5a [ 44.289032] ? io_schedule_timeout+0x140/0x140 [ 44.294470] ? drm_prime_destroy_file_private.cold+0x11/0x18 [ 44.301767] report_bug+0x262/0x2b0 [ 44.307050] do_error_trap+0x1d7/0x310 [ 44.312028] ? math_error+0x310/0x310 [ 44.316246] ? __irq_work_queue_local+0x101/0x160 [ 44.322463] ? irq_work_queue+0x29/0x80 [ 44.326841] ? error_entry+0x72/0xd0 [ 44.331135] ? trace_hardirqs_off_caller+0x6e/0x210 [ 44.337097] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.342896] invalid_op+0x14/0x20 [ 44.347049] RIP: 0010:drm_prime_destroy_file_private.cold+0x11/0x18 [ 44.354490] Code: 65 f9 48 c7 c7 c0 85 c5 88 e8 b0 80 f5 ff 0f 0b 41 83 cc ff e9 cd a5 db fb e8 fb 8d 65 f9 48 c7 c7 c0 85 c5 88 e8 94 80 f5 ff <0f> 0b e9 f9 b0 db fb e8 e3 8d 65 f9 48 c7 c7 a0 87 c5 88 e8 7c 80 [ 44.375619] RSP: 0018:ffff888090fd7ac8 EFLAGS: 00010282 [ 44.381231] RAX: 0000000000000024 RBX: ffff8880a9785b90 RCX: 0000000000000000 [ 44.388687] RDX: 0000000000000000 RSI: ffffffff814dddb1 RDI: ffffed10121faf4b [ 44.396659] RBP: ffffffff83e94350 R08: 0000000000000024 R09: 0000000000000000 [ 44.402721] Bluetooth: hci0: command 0x0409 tx timeout [ 44.404147] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880aa95b240 [ 44.404160] R13: ffff8880aa95b480 R14: ffff8880aa95b490 R15: ffff8880aa95b468 [ 44.424855] ? vgem_gem_free_object+0xd0/0xd0 [ 44.429541] ? vprintk_func+0x81/0x180 [ 44.433583] ? drm_prime_destroy_file_private.cold+0x11/0x18 [ 44.439919] drm_file_free.part.0+0xa15/0xd30 [ 44.444662] drm_release+0x210/0x360 [ 44.448479] ? ima_file_free+0xb6/0x460 [ 44.452551] ? drm_lastclose+0x2b0/0x2b0 [ 44.457686] __fput+0x2ce/0x890 [ 44.461000] task_work_run+0x148/0x1c0 [ 44.465438] get_signal+0x1b64/0x1f70 [ 44.469322] ? debug_check_no_obj_freed+0x201/0x490 [ 44.474966] ? futex_exit_release+0x220/0x220 [ 44.479551] do_signal+0x8f/0x1670 [ 44.483679] ? drm_getstats+0x20/0x20 [ 44.487957] ? do_vfs_ioctl+0x110/0x12e0 [ 44.492314] ? setup_sigcontext+0x820/0x820 [ 44.496815] ? ioctl_preallocate+0x200/0x200 [ 44.502569] ? __fget+0x356/0x510 [ 44.506036] ? check_preemption_disabled+0x41/0x280 [ 44.511049] ? kick_process+0xe4/0x170 [ 44.515323] ? task_work_add+0x93/0x100 [ 44.519953] ? exit_to_usermode_loop+0x36/0x2a0 [ 44.525203] exit_to_usermode_loop+0x204/0x2a0 [ 44.529874] do_syscall_64+0x538/0x620 [ 44.533787] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.539321] RIP: 0033:0x466459 [ 44.543032] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 44.565584] RSP: 002b:00007fdc24f5f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.576459] RAX: 0000000000000000 RBX: 000000000056bf60 RCX: 0000000000466459 [ 44.585011] RDX: 0000000020000140 RSI: 00000000c10c5541 RDI: 0000000000000003 [ 44.594173] RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000 [ 44.602614] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 [ 44.611125] R13: 00007ffcaac50d0f R14: 00007fdc24f5f300 R15: 0000000000022000 [ 44.621933] Kernel Offset: disabled [ 44.625684] Rebooting in 86400 seconds..