[ 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 '10.128.0.5' (ECDSA) to the list of known hosts. 2020/09/09 01:19:23 parsed 1 programs 2020/09/09 01:19:24 executed programs: 0 syzkaller login: [ 148.092188] audit: type=1400 audit(1599614364.084:8): avc: denied { execmem } for pid=6481 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 149.181012] IPVS: ftp: loaded support on port[0] = 21 [ 149.311733] chnl_net:caif_netlink_parms(): no params data found [ 149.429690] bridge0: port 1(bridge_slave_0) entered blocking state [ 149.436667] bridge0: port 1(bridge_slave_0) entered disabled state [ 149.444425] device bridge_slave_0 entered promiscuous mode [ 149.452559] bridge0: port 2(bridge_slave_1) entered blocking state [ 149.458940] bridge0: port 2(bridge_slave_1) entered disabled state [ 149.466378] device bridge_slave_1 entered promiscuous mode [ 149.483867] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 149.493086] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 149.511430] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 149.518937] team0: Port device team_slave_0 added [ 149.525113] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 149.533009] team0: Port device team_slave_1 added [ 149.548570] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 149.554876] 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. [ 149.580741] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 149.592978] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 149.599220] 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. [ 149.624583] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 149.635271] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 149.643045] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 149.662723] device hsr_slave_0 entered promiscuous mode [ 149.668366] device hsr_slave_1 entered promiscuous mode [ 149.674717] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 149.681899] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 149.753091] bridge0: port 2(bridge_slave_1) entered blocking state [ 149.759530] bridge0: port 2(bridge_slave_1) entered forwarding state [ 149.766444] bridge0: port 1(bridge_slave_0) entered blocking state [ 149.772894] bridge0: port 1(bridge_slave_0) entered forwarding state [ 149.805123] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 149.812736] 8021q: adding VLAN 0 to HW filter on device bond0 [ 149.821694] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 149.829854] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 149.839746] bridge0: port 1(bridge_slave_0) entered disabled state [ 149.847927] bridge0: port 2(bridge_slave_1) entered disabled state [ 149.855318] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 149.866555] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 149.872762] 8021q: adding VLAN 0 to HW filter on device team0 [ 149.882035] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 149.889737] bridge0: port 1(bridge_slave_0) entered blocking state [ 149.896158] bridge0: port 1(bridge_slave_0) entered forwarding state [ 149.912751] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 149.920366] bridge0: port 2(bridge_slave_1) entered blocking state [ 149.926785] bridge0: port 2(bridge_slave_1) entered forwarding state [ 149.934009] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 149.942864] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 149.953222] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 149.964107] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 149.975036] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 149.985847] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 149.992939] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 150.000251] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 150.014951] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 150.022536] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 150.029213] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 150.040772] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 150.053588] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 150.063519] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 150.099360] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 150.107134] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 150.115215] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 150.124698] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 150.133515] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 150.140402] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 150.149970] device veth0_vlan entered promiscuous mode [ 150.159280] device veth1_vlan entered promiscuous mode [ 150.165459] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 150.174358] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 150.186852] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 150.195992] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 150.204040] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 150.212035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 150.221134] device veth0_macvtap entered promiscuous mode [ 150.227240] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 150.236837] device veth1_macvtap entered promiscuous mode [ 150.246457] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 150.256032] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 150.265972] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 150.272960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 150.281490] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 150.291745] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 150.302629] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 151.222291] Bluetooth: hci0: command 0x0409 tx timeout 2020/09/09 01:19:29 executed programs: 133 [ 153.301473] Bluetooth: hci0: command 0x041b tx timeout [ 155.381729] Bluetooth: hci0: command 0x040f tx timeout [ 157.461279] Bluetooth: hci0: command 0x0419 tx timeout 2020/09/09 01:19:34 executed programs: 379 2020/09/09 01:19:39 executed programs: 636 2020/09/09 01:19:44 executed programs: 882 [ 169.044323] kasan: CONFIG_KASAN_INLINE enabled [ 169.049318] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 169.062982] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 169.069313] CPU: 1 PID: 10457 Comm: syz-executor.0 Not tainted 4.19.143-syzkaller #0 [ 169.077181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 169.086524] RIP: 0010:__sock_release+0xbb/0x2a0 [ 169.091180] Code: ff df 48 c1 ea 03 80 3c 02 00 0f 85 c9 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 28 49 8d 7c 24 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b2 01 00 00 48 89 df 41 ff 54 24 10 48 8d 7b 20 [ 169.110069] RSP: 0018:ffff888098157df8 EFLAGS: 00010202 [ 169.115410] RAX: dffffc0000000000 RBX: ffff8880801e4080 RCX: 0000000000004724 [ 169.122656] RDX: 0000000000000002 RSI: 00000000a87acb66 RDI: 0000000000000010 [ 169.129912] RBP: ffff8880801e4188 R08: ffffffff8b40e1a0 R09: 0000000000000000 [ 169.137187] R10: ffff888087710dc8 R11: 0000000000000000 R12: 0000000000000000 [ 169.144448] R13: ffff8880801e40a8 R14: 0000000000000000 R15: ffff8880a94f2a20 [ 169.151695] FS: 00007f188fcf9700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 169.159897] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 169.165768] CR2: 0000000000000000 CR3: 000000009e3b2000 CR4: 00000000001406e0 [ 169.173015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 169.180274] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 169.187528] Call Trace: [ 169.190111] ? __sock_release+0x2a0/0x2a0 [ 169.194234] sock_close+0x15/0x20 [ 169.197674] __fput+0x2ce/0x890 [ 169.200932] task_work_run+0x148/0x1c0 [ 169.204800] exit_to_usermode_loop+0x251/0x2a0 [ 169.209369] do_syscall_64+0x538/0x620 [ 169.213236] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 169.218401] RIP: 0033:0x45d5b9 [ 169.221570] Code: 5d 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 169.240458] RSP: 002b:00007f188fcf8c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 [ 169.248159] RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9 [ 169.255415] RDX: 0000000000000005 RSI: 0000000000000001 RDI: 0000000000000006 [ 169.262858] RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000 [ 169.270112] R10: 0000000020000080 R11: 0000000000000246 R12: 000000000118cf4c [ 169.277357] R13: 00007ffefe5ed30f R14: 00007f188fcf99c0 R15: 000000000118cf4c [ 169.284605] Modules linked in: [ 169.289007] ---[ end trace 1d90546860d1935f ]--- [ 169.294580] RIP: 0010:__sock_release+0xbb/0x2a0 [ 169.299305] Code: ff df 48 c1 ea 03 80 3c 02 00 0f 85 c9 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 28 49 8d 7c 24 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b2 01 00 00 48 89 df 41 ff 54 24 10 48 8d 7b 20 [ 169.319087] RSP: 0018:ffff888098157df8 EFLAGS: 00010202 [ 169.324512] RAX: dffffc0000000000 RBX: ffff8880801e4080 RCX: 0000000000004724 [ 169.331845] RDX: 0000000000000002 RSI: 00000000a87acb66 RDI: 0000000000000010 [ 169.339114] RBP: ffff8880801e4188 R08: ffffffff8b40e1a0 R09: 0000000000000000 [ 169.346415] R10: ffff888087710dc8 R11: 0000000000000000 R12: 0000000000000000 [ 169.353749] R13: ffff8880801e40a8 R14: 0000000000000000 R15: ffff8880a94f2a20 [ 169.361020] FS: 00007f188fcf9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 169.369268] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 169.375236] CR2: 000055f7ceb74230 CR3: 000000009e3b2000 CR4: 00000000001406f0 [ 169.382561] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 169.389823] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 169.397136] Kernel panic - not syncing: Fatal exception [ 169.403514] Kernel Offset: disabled [ 169.407143] Rebooting in 86400 seconds..