[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.182' (ECDSA) to the list of known hosts. 2021/03/04 02:24:19 parsed 1 programs 2021/03/04 02:24:19 executed programs: 0 syzkaller login: [ 39.556625] IPVS: ftp: loaded support on port[0] = 21 [ 39.645067] chnl_net:caif_netlink_parms(): no params data found [ 39.732221] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.738962] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.746902] device bridge_slave_0 entered promiscuous mode [ 39.755108] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.761504] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.769632] device bridge_slave_1 entered promiscuous mode [ 39.788107] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 39.797677] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 39.816786] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 39.824785] team0: Port device team_slave_0 added [ 39.830293] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 39.838180] team0: Port device team_slave_1 added [ 39.854680] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 39.861084] 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. [ 39.887164] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 39.898670] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 39.905007] 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. [ 39.930419] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 39.941433] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 39.950143] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 39.970138] device hsr_slave_0 entered promiscuous mode [ 39.976040] device hsr_slave_1 entered promiscuous mode [ 39.982190] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 39.989644] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 40.057125] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.063642] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.070504] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.077259] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.111711] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 40.119061] 8021q: adding VLAN 0 to HW filter on device bond0 [ 40.128301] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 40.140904] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.149533] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.157212] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.164705] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 40.177350] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 40.183535] 8021q: adding VLAN 0 to HW filter on device team0 [ 40.192612] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 40.200564] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.207149] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.217988] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.225992] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.232445] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.247181] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 40.256702] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 40.267877] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 40.280913] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 40.291640] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 40.303363] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 40.309841] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.317998] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.325851] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 40.339279] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 40.347236] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 40.354524] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 40.367098] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 40.379525] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 40.390105] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 40.433201] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 40.440624] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 40.448136] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 40.458123] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 40.466384] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 40.473944] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 40.484258] device veth0_vlan entered promiscuous mode [ 40.493989] device veth1_vlan entered promiscuous mode [ 40.500026] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 40.509639] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 40.521520] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 40.531783] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 40.540001] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 40.547940] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 40.558323] device veth0_macvtap entered promiscuous mode [ 40.564982] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 40.574536] device veth1_macvtap entered promiscuous mode [ 40.584526] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 40.594507] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 40.605607] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 40.613465] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 40.622581] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 40.632659] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 40.639558] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 40.646994] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 40.655029] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.775776] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 40.784138] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 40.791366] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 40.806089] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 40.814356] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 40.825714] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 40.833455] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 40.840393] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 41.563063] Bluetooth: hci0: command 0x0409 tx timeout 2021/03/04 02:24:24 executed programs: 126 [ 43.651454] Bluetooth: hci0: command 0x041b tx timeout [ 45.720790] Bluetooth: hci0: command 0x040f tx timeout [ 47.800065] Bluetooth: hci0: command 0x0419 tx timeout 2021/03/04 02:24:29 executed programs: 613 [ 50.920684] kasan: CONFIG_KASAN_INLINE enabled [ 50.925364] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 50.934858] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 50.941832] CPU: 1 PID: 11176 Comm: syz-executor.0 Not tainted 4.19.177-syzkaller #0 [ 50.949701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.959149] RIP: 0010:vgem_fence_attach_ioctl+0x27d/0x640 [ 50.964674] Code: 03 80 3c 02 00 0f 85 9b 03 00 00 4c 8b b5 10 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d be e0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 7f 03 00 00 4c 89 ea 4d 8b b6 e0 00 00 00 48 b8 [ 50.983568] RSP: 0018:ffff8880abe97af0 EFLAGS: 00010202 [ 50.988935] RAX: dffffc0000000000 RBX: ffff8880aafc4a00 RCX: 1ffff110157d2f4b [ 50.996193] RDX: 000000000000001c RSI: ffffffff8153a92f RDI: 00000000000000e0 [ 51.003465] RBP: ffff8880aafc4c80 R08: 0000000000000000 R09: 0000000000000000 [ 51.010829] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a254c280 [ 51.018109] R13: ffff8880aafc4a04 R14: 0000000000000000 R15: ffff8880a254c318 [ 51.025381] FS: 00007fcc99f60700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 51.033610] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.039478] CR2: 0000000000000000 CR3: 00000000a0fd4000 CR4: 00000000001406e0 [ 51.046916] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.054193] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.061472] Call Trace: [ 51.064065] drm_ioctl_kernel+0x208/0x2a0 [ 51.068210] ? __vgem_fence_idr_fini+0x60/0x60 [ 51.072786] ? drm_ioctl_permit+0x210/0x210 [ 51.077134] ? __might_fault+0x192/0x1d0 [ 51.081207] drm_ioctl+0x507/0x9c0 [ 51.084732] ? __vgem_fence_idr_fini+0x60/0x60 [ 51.089302] ? drm_getstats+0x20/0x20 [ 51.093090] ? cmp_ex_sort+0xc0/0xc0 [ 51.096811] ? __might_fault+0x11f/0x1d0 [ 51.100862] ? futex_exit_release+0x220/0x220 [ 51.105357] ? lock_downgrade+0x720/0x720 [ 51.109490] ? lock_acquire+0x170/0x3c0 [ 51.113456] ? drm_getstats+0x20/0x20 [ 51.117267] do_vfs_ioctl+0xcdb/0x12e0 [ 51.121152] ? lock_downgrade+0x720/0x720 [ 51.125311] ? check_preemption_disabled+0x41/0x280 [ 51.130315] ? ioctl_preallocate+0x200/0x200 [ 51.134763] ? __fget+0x356/0x510 [ 51.138240] ? do_dup2+0x450/0x450 [ 51.141797] ? __se_sys_futex+0x298/0x3b0 [ 51.145978] ksys_ioctl+0x9b/0xc0 [ 51.149449] __x64_sys_ioctl+0x6f/0xb0 [ 51.153336] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 51.157915] do_syscall_64+0xf9/0x620 [ 51.161716] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.166894] RIP: 0033:0x465ef9 [ 51.170071] 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 [ 51.188972] RSP: 002b:00007fcc99f60188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.196670] RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465ef9 [ 51.204113] RDX: 0000000020000140 RSI: 00000000c10c5541 RDI: 0000000000000003 [ 51.211370] RBP: 00000000004bfa34 R08: 0000000000000000 R09: 0000000000000000 [ 51.218629] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 [ 51.225888] R13: 00007ffc0f0785af R14: 00007fcc99f60300 R15: 0000000000022000 [ 51.233157] Modules linked in: [ 51.238674] ---[ end trace 94aa4c299f1de680 ]--- [ 51.243951] RIP: 0010:vgem_fence_attach_ioctl+0x27d/0x640 [ 51.249840] Code: 03 80 3c 02 00 0f 85 9b 03 00 00 4c 8b b5 10 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d be e0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 7f 03 00 00 4c 89 ea 4d 8b b6 e0 00 00 00 48 b8 [ 51.269525] RSP: 0018:ffff8880abe97af0 EFLAGS: 00010202 [ 51.274889] RAX: dffffc0000000000 RBX: ffff8880aafc4a00 RCX: 1ffff110157d2f4b [ 51.282253] RDX: 000000000000001c RSI: ffffffff8153a92f RDI: 00000000000000e0 [ 51.289745] RBP: ffff8880aafc4c80 R08: 0000000000000000 R09: 0000000000000000 [ 51.297461] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a254c280 [ 51.304786] R13: ffff8880aafc4a04 R14: 0000000000000000 R15: ffff8880a254c318 [ 51.312132] FS: 00007fcc99f60700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 51.320567] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.326451] CR2: 00007fcc99f3f718 CR3: 00000000a0fd4000 CR4: 00000000001406f0 [ 51.333815] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.341159] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.348439] Kernel panic - not syncing: Fatal exception [ 51.354392] Kernel Offset: disabled [ 51.358012] Rebooting in 86400 seconds..