Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.196' (ECDSA) to the list of known hosts. 2021/04/15 05:03:36 parsed 1 programs 2021/04/15 05:03:36 executed programs: 0 syzkaller login: [ 38.940678] IPVS: ftp: loaded support on port[0] = 21 [ 39.051845] chnl_net:caif_netlink_parms(): no params data found [ 39.184602] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.192367] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.201394] device bridge_slave_0 entered promiscuous mode [ 39.209832] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.217147] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.225382] device bridge_slave_1 entered promiscuous mode [ 39.244602] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 39.256835] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 39.277064] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 39.285475] team0: Port device team_slave_0 added [ 39.291310] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 39.300496] team0: Port device team_slave_1 added [ 39.318287] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 39.325387] 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. [ 39.352230] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 39.365128] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 39.371588] 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. [ 39.398669] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 39.409943] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 39.417886] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 39.437815] device hsr_slave_0 entered promiscuous mode [ 39.443815] device hsr_slave_1 entered promiscuous mode [ 39.450949] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 39.458473] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 39.526638] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.533351] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.540588] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.548228] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.581351] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 39.589507] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.599647] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 39.609618] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.618759] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.626767] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.634395] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 39.647624] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 39.654268] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.664062] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.672140] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.678660] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.689474] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.698289] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.704894] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.721246] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.730515] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 39.741098] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.754211] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.765538] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.776850] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 39.784438] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 39.798319] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 39.805909] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 39.813121] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 39.829925] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.843159] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 39.854966] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.895297] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 39.903226] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 39.911171] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 39.922047] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.930204] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 39.938206] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 39.947834] device veth0_vlan entered promiscuous mode [ 39.957694] device veth1_vlan entered promiscuous mode [ 39.965270] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 39.976937] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 39.989582] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 40.000607] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 40.009658] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 40.017697] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 40.028745] device veth0_macvtap entered promiscuous mode [ 40.039148] device veth1_macvtap entered promiscuous mode [ 40.049257] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 40.059515] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 40.069932] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 40.078129] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 40.085652] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 40.094371] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 40.105492] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 40.112935] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 40.120873] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 40.129473] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.246980] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 40.254693] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 40.262089] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 40.279596] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 40.292919] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 40.300650] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 40.309491] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 40.318062] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 40.509043] ------------[ cut here ]------------ [ 40.514597] WARNING: CPU: 1 PID: 8408 at drivers/gpu/drm/drm_prime.c:982 drm_prime_destroy_file_private.cold+0x11/0x18 [ 40.526446] Kernel panic - not syncing: panic_on_warn set ... [ 40.526446] [ 40.534766] CPU: 1 PID: 8408 Comm: syz-executor.0 Not tainted 4.19.187-syzkaller #0 [ 40.542697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.552937] Call Trace: [ 40.555544] dump_stack+0x1fc/0x2ef [ 40.559167] panic+0x26a/0x50e [ 40.562352] ? __warn_printk+0xf3/0xf3 [ 40.566436] ? drm_prime_destroy_file_private.cold+0x11/0x18 [ 40.572315] ? __probe_kernel_read+0x130/0x1b0 [ 40.577080] ? __warn.cold+0x5/0x5a [ 40.580716] ? __warn+0xe4/0x200 [ 40.584172] ? drm_prime_destroy_file_private.cold+0x11/0x18 [ 40.590151] __warn.cold+0x20/0x5a [ 40.593690] ? io_schedule_timeout+0x140/0x140 [ 40.598266] ? drm_prime_destroy_file_private.cold+0x11/0x18 [ 40.604232] report_bug+0x262/0x2b0 [ 40.608089] do_error_trap+0x1d7/0x310 [ 40.612608] ? math_error+0x310/0x310 [ 40.616772] ? __irq_work_queue_local+0x101/0x160 [ 40.621829] ? irq_work_queue+0x29/0x80 [ 40.625902] ? error_entry+0x72/0xd0 [ 40.629800] ? trace_hardirqs_off_caller+0x6e/0x210 [ 40.634825] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.639909] invalid_op+0x14/0x20 [ 40.643585] RIP: 0010:drm_prime_destroy_file_private.cold+0x11/0x18 [ 40.650630] 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 [ 40.670455] RSP: 0018:ffff88809ed3fac8 EFLAGS: 00010282 [ 40.676292] RAX: 0000000000000024 RBX: ffff888094facf90 RCX: 0000000000000000 [ 40.683733] RDX: 0000000000000000 RSI: ffffffff814dddb1 RDI: ffffed1013da7f4b [ 40.691145] RBP: ffffffff83e94350 R08: 0000000000000024 R09: 0000000000000000 [ 40.699053] R10: 0000000000000005 R11: 0000000000000000 R12: ffff88809cd83200 [ 40.706729] R13: ffff88809cd83440 R14: ffff88809cd83450 R15: ffff88809cd83428 [ 40.714190] ? vgem_gem_free_object+0xd0/0xd0 [ 40.719014] ? vprintk_func+0x81/0x180 [ 40.722901] ? drm_prime_destroy_file_private.cold+0x11/0x18 [ 40.729298] drm_file_free.part.0+0xa15/0xd30 [ 40.734425] drm_release+0x210/0x360 [ 40.738356] ? ima_file_free+0xb6/0x460 [ 40.742530] ? drm_lastclose+0x2b0/0x2b0 [ 40.746593] __fput+0x2ce/0x890 [ 40.750098] task_work_run+0x148/0x1c0 [ 40.754193] get_signal+0x1b64/0x1f70 [ 40.758061] ? ion_ioctl+0x1a2/0x2c0 [ 40.761960] ? ion_query_heaps+0x3d0/0x3d0 [ 40.766198] ? futex_exit_release+0x220/0x220 [ 40.770991] do_signal+0x8f/0x1670 [ 40.775143] ? drm_getstats+0x20/0x20 [ 40.779425] ? do_vfs_ioctl+0x110/0x12e0 [ 40.783514] ? setup_sigcontext+0x820/0x820 [ 40.788113] ? ioctl_preallocate+0x200/0x200 [ 40.792706] ? __fget+0x356/0x510 [ 40.796161] ? check_preemption_disabled+0x41/0x280 [ 40.801429] ? kick_process+0xe4/0x170 [ 40.805514] ? task_work_add+0x93/0x100 [ 40.809571] ? exit_to_usermode_loop+0x36/0x2a0 [ 40.814322] exit_to_usermode_loop+0x204/0x2a0 [ 40.819007] do_syscall_64+0x538/0x620 [ 40.823056] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.828417] RIP: 0033:0x466459 [ 40.831599] 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 [ 40.850927] RSP: 002b:00007fc5ddc26188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 40.858771] RAX: 0000000000000000 RBX: 000000000056bf60 RCX: 0000000000466459 [ 40.866157] RDX: 0000000020000140 RSI: 00000000c10c5541 RDI: 0000000000000003 [ 40.873626] RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000 [ 40.882836] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 [ 40.890687] R13: 00007ffcbfa2f33f R14: 00007fc5ddc26300 R15: 0000000000022000 [ 40.899698] Kernel Offset: disabled [ 40.904011] Rebooting in 86400 seconds..