Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.11' (ECDSA) to the list of known hosts. 2021/01/11 22:41:05 parsed 1 programs 2021/01/11 22:41:05 executed programs: 0 syzkaller login: [ 36.108972] IPVS: ftp: loaded support on port[0] = 21 [ 36.209500] chnl_net:caif_netlink_parms(): no params data found [ 36.265954] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.272467] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.280002] device bridge_slave_0 entered promiscuous mode [ 36.288626] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.295196] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.302076] device bridge_slave_1 entered promiscuous mode [ 36.318951] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 36.327812] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 36.345669] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 36.353016] team0: Port device team_slave_0 added [ 36.358674] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 36.366124] team0: Port device team_slave_1 added [ 36.381031] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 36.387507] 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. [ 36.412729] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 36.424465] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 36.430705] 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. [ 36.456095] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 36.466726] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 36.474192] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 36.493302] device hsr_slave_0 entered promiscuous mode [ 36.499071] device hsr_slave_1 entered promiscuous mode [ 36.505547] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 36.512502] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 36.578717] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.585163] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.591884] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.598283] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.628116] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 36.635442] 8021q: adding VLAN 0 to HW filter on device bond0 [ 36.643166] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 36.652735] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 36.661699] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.669069] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.676280] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 36.686440] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 36.692671] 8021q: adding VLAN 0 to HW filter on device team0 [ 36.702371] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 36.710418] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.716807] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.734589] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 36.742158] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.748534] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.757896] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 36.766382] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 36.774211] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 36.783456] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 36.794366] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 36.802616] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 36.809310] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 36.821918] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 36.829484] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 36.836439] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 36.846817] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 36.859801] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 36.869087] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 36.899755] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 36.907671] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 36.914332] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 36.922981] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 36.931719] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 36.939077] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 36.948500] device veth0_vlan entered promiscuous mode [ 36.957206] device veth1_vlan entered promiscuous mode [ 36.963215] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 36.972071] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 36.982972] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 36.992437] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 37.000066] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 37.007876] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 37.016946] device veth0_macvtap entered promiscuous mode [ 37.022989] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 37.031276] device veth1_macvtap entered promiscuous mode [ 37.040209] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 37.049267] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 37.059066] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 37.066161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 37.074627] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 37.085453] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 37.092237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 37.199556] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 37.206781] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 37.225910] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 37.226151] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 37.238759] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 37.242932] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 37.248458] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 37.259440] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 38.144249] Bluetooth: hci0: command 0x0409 tx timeout [ 39.154591] ------------[ cut here ]------------ [ 39.159648] WARNING: CPU: 1 PID: 8830 at drivers/gpu/drm/drm_prime.c:982 drm_prime_destroy_file_private.cold+0x11/0x20 [ 39.170566] Kernel panic - not syncing: panic_on_warn set ... [ 39.170566] [ 39.177973] CPU: 1 PID: 8830 Comm: syz-executor.0 Not tainted 4.19.166-syzkaller #0 [ 39.185746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.195075] Call Trace: [ 39.197658] dump_stack+0x1fc/0x2fe [ 39.201266] panic+0x26a/0x50e [ 39.204454] ? __warn_printk+0xf3/0xf3 [ 39.208337] ? drm_prime_destroy_file_private.cold+0x11/0x20 [ 39.214123] ? __probe_kernel_read+0x130/0x1b0 [ 39.218682] ? __warn.cold+0x5/0x61 [ 39.222332] ? __warn+0xe4/0x200 [ 39.225680] ? drm_prime_destroy_file_private.cold+0x11/0x20 [ 39.231457] __warn.cold+0x20/0x61 [ 39.234978] ? drm_prime_destroy_file_private.cold+0x11/0x20 [ 39.240757] report_bug+0x262/0x2b0 [ 39.244366] do_error_trap+0x1d7/0x310 [ 39.248234] ? math_error+0x310/0x310 [ 39.252019] ? __irq_work_queue_local+0x101/0x160 [ 39.256843] ? irq_work_queue+0x29/0x80 [ 39.260850] ? error_entry+0x72/0xd0 [ 39.264554] ? trace_hardirqs_off_caller+0x6e/0x210 [ 39.269551] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.274412] invalid_op+0x14/0x20 [ 39.277897] RIP: 0010:drm_prime_destroy_file_private.cold+0x11/0x20 [ 39.284294] Code: 81 fd 48 c7 c7 40 69 c5 88 e8 0a 2b 6c fd 0f 0b 41 83 cc ff e9 3d f4 ff ff e8 0b 31 81 fd 48 c7 c7 40 69 c5 88 e8 ee 2a 6c fd <0f> 0b e9 69 ff ff ff 90 90 90 90 90 90 90 90 41 57 41 56 41 55 41 [ 39.303174] RSP: 0018:ffff88809cad7ac8 EFLAGS: 00010282 [ 39.308518] RAX: 0000000000000024 RBX: ffff8880abc77590 RCX: 0000000000000000 [ 39.315770] RDX: 0000000000000000 RSI: ffffffff814fdd11 RDI: ffffed101395af4b [ 39.323038] RBP: ffffffff83f4cfc0 R08: 0000000000000024 R09: 0000000000000000 [ 39.330286] R10: 0000000000000005 R11: 0000000000000000 R12: ffff88809cbf5680 [ 39.337533] R13: ffff88809cbf58c0 R14: ffff88809cbf58d0 R15: ffff88809cbf58a8 [ 39.344901] ? vgem_gem_free_object+0xd0/0xd0 [ 39.349380] ? vprintk_func+0x81/0x17e [ 39.353251] ? drm_prime_destroy_file_private.cold+0x11/0x20 [ 39.360416] drm_file_free.part.0+0xa15/0xd30 [ 39.364904] drm_release+0x210/0x359 [ 39.368604] ? ima_file_free+0xb6/0x460 [ 39.372662] ? drm_lastclose+0x2b0/0x2b0 [ 39.376747] __fput+0x2ce/0x890 [ 39.380021] task_work_run+0x148/0x1c0 [ 39.383894] get_signal+0x1b64/0x1f70 [ 39.387678] ? debug_check_no_obj_freed+0x201/0x482 [ 39.392684] ? lock_downgrade+0x720/0x720 [ 39.396811] ? lock_acquire+0x170/0x3c0 [ 39.400786] do_signal+0x8f/0x1670 [ 39.404306] ? drm_getstats+0x20/0x20 [ 39.408089] ? do_vfs_ioctl+0x110/0x12e0 [ 39.412137] ? setup_sigcontext+0x820/0x820 [ 39.416440] ? ioctl_preallocate+0x200/0x200 [ 39.420831] ? __fget+0x356/0x510 [ 39.424279] ? check_preemption_disabled+0x41/0x280 [ 39.429286] ? kick_process+0xe4/0x170 [ 39.433156] ? task_work_add+0x93/0x100 [ 39.437116] ? exit_to_usermode_loop+0x36/0x2a0 [ 39.441767] exit_to_usermode_loop+0x204/0x2a0 [ 39.446340] do_syscall_64+0x538/0x620 [ 39.450208] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.455385] RIP: 0033:0x45e219 [ 39.458560] Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 39.477443] RSP: 002b:00007f83ffa12c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 39.485135] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 000000000045e219 [ 39.492386] RDX: 0000000020000140 RSI: 00000000c10c5541 RDI: 0000000000000003 [ 39.499641] RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000 [ 39.506894] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c [ 39.514145] R13: 00007fff9ec0ecdf R14: 00007f83ffa139c0 R15: 000000000119bf8c [ 39.521700] Kernel Offset: disabled [ 39.525393] Rebooting in 86400 seconds..