[ 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 '10.128.0.167' (ECDSA) to the list of known hosts. 2020/09/08 17:15:36 parsed 1 programs 2020/09/08 17:15:37 executed programs: 0 syzkaller login: [ 142.980712] audit: type=1400 audit(1599585337.300:8): avc: denied { execmem } for pid=6480 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 144.088451] IPVS: ftp: loaded support on port[0] = 21 [ 144.205215] chnl_net:caif_netlink_parms(): no params data found [ 144.357246] bridge0: port 1(bridge_slave_0) entered blocking state [ 144.363940] bridge0: port 1(bridge_slave_0) entered disabled state [ 144.370989] device bridge_slave_0 entered promiscuous mode [ 144.379763] bridge0: port 2(bridge_slave_1) entered blocking state [ 144.386476] bridge0: port 2(bridge_slave_1) entered disabled state [ 144.394335] device bridge_slave_1 entered promiscuous mode [ 144.412436] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 144.421238] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 144.440850] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 144.448410] team0: Port device team_slave_0 added [ 144.454647] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 144.462545] team0: Port device team_slave_1 added [ 144.478597] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 144.484892] 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. [ 144.510208] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 144.522483] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 144.528729] 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. [ 144.553976] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 144.566860] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 144.574657] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 144.594464] device hsr_slave_0 entered promiscuous mode [ 144.600444] device hsr_slave_1 entered promiscuous mode [ 144.607037] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 144.614381] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 144.683710] bridge0: port 2(bridge_slave_1) entered blocking state [ 144.690161] bridge0: port 2(bridge_slave_1) entered forwarding state [ 144.697145] bridge0: port 1(bridge_slave_0) entered blocking state [ 144.703724] bridge0: port 1(bridge_slave_0) entered forwarding state [ 144.738458] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 144.745119] 8021q: adding VLAN 0 to HW filter on device bond0 [ 144.754366] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 144.763563] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 144.773281] bridge0: port 1(bridge_slave_0) entered disabled state [ 144.780461] bridge0: port 2(bridge_slave_1) entered disabled state [ 144.788640] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 144.800030] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 144.806271] 8021q: adding VLAN 0 to HW filter on device team0 [ 144.816377] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 144.824511] bridge0: port 1(bridge_slave_0) entered blocking state [ 144.830851] bridge0: port 1(bridge_slave_0) entered forwarding state [ 144.841003] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 144.849294] bridge0: port 2(bridge_slave_1) entered blocking state [ 144.855704] bridge0: port 2(bridge_slave_1) entered forwarding state [ 144.871216] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 144.879838] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 144.890331] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 144.904562] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 144.914833] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 144.926109] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 144.933333] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 144.941255] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 144.949200] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 144.963284] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 144.972416] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 144.979115] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 144.990053] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 145.005347] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 145.015321] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 145.054166] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 145.063081] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 145.069804] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 145.080134] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 145.088361] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 145.095449] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 145.104787] device veth0_vlan entered promiscuous mode [ 145.115161] device veth1_vlan entered promiscuous mode [ 145.121177] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 145.130943] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 145.144062] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 145.154266] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 145.162850] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 145.170126] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 145.179916] device veth0_macvtap entered promiscuous mode [ 145.186459] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 145.195789] device veth1_macvtap entered promiscuous mode [ 145.203623] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 145.213755] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 145.223423] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 145.233523] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 145.240648] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 145.248060] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 145.256681] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 145.268308] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 145.277036] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 145.284753] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 145.294907] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 146.112237] Bluetooth: hci0: command 0x0409 tx timeout [ 146.413342] kasan: CONFIG_KASAN_INLINE enabled [ 146.419011] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 146.430692] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 146.437565] CPU: 1 PID: 6900 Comm: syz-executor.0 Not tainted 4.19.143-syzkaller #0 [ 146.445747] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 146.455283] RIP: 0010:__sock_release+0xbb/0x2a0 [ 146.459951] 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 [ 146.479943] RSP: 0018:ffff88808675fdf8 EFLAGS: 00010202 [ 146.485407] RAX: dffffc0000000000 RBX: ffff88807fdbea80 RCX: 0000000000005c8a [ 146.493089] RDX: 0000000000000002 RSI: 00000000ea14b678 RDI: 0000000000000010 [ 146.500539] RBP: ffff88807fdbeb88 R08: ffffffff8b418cd0 R09: 0000000000000000 [ 146.507817] R10: ffff888099eb6b88 R11: 0000000000000000 R12: 0000000000000000 [ 146.515946] R13: ffff88807fdbeaa8 R14: 0000000000000000 R15: ffff8880a94f2a20 [ 146.523313] FS: 00007f96f090f700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 146.532118] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 146.538339] CR2: 000055f3dffff970 CR3: 000000008fe8f000 CR4: 00000000001406e0 [ 146.545702] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 146.553318] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 146.561325] Call Trace: [ 146.564048] ? __sock_release+0x2a0/0x2a0 [ 146.568468] sock_close+0x15/0x20 [ 146.572010] __fput+0x2ce/0x890 [ 146.575297] task_work_run+0x148/0x1c0 [ 146.579185] exit_to_usermode_loop+0x251/0x2a0 [ 146.583764] do_syscall_64+0x538/0x620 [ 146.587963] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 146.593454] RIP: 0033:0x45d5b9 [ 146.596872] 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 [ 146.616690] RSP: 002b:00007f96f090ec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 [ 146.624597] RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9 [ 146.632922] RDX: 0000000000000006 RSI: 0000000000000001 RDI: 0000000000000007 [ 146.640497] RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000 [ 146.648400] R10: 00000000200001c0 R11: 0000000000000246 R12: 000000000118cf4c [ 146.656495] R13: 00007ffe7847534f R14: 00007f96f090f9c0 R15: 000000000118cf4c [ 146.664292] Modules linked in: [ 146.672930] ---[ end trace 01651501d16fe1f0 ]--- [ 146.677905] RIP: 0010:__sock_release+0xbb/0x2a0 [ 146.683435] 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 [ 146.703399] RSP: 0018:ffff88808675fdf8 EFLAGS: 00010202 [ 146.709000] RAX: dffffc0000000000 RBX: ffff88807fdbea80 RCX: 0000000000005c8a [ 146.716690] RDX: 0000000000000002 RSI: 00000000ea14b678 RDI: 0000000000000010 [ 146.725394] RBP: ffff88807fdbeb88 R08: ffffffff8b418cd0 R09: 0000000000000000 [ 146.733159] R10: ffff888099eb6b88 R11: 0000000000000000 R12: 0000000000000000 [ 146.740595] R13: ffff88807fdbeaa8 R14: 0000000000000000 R15: ffff8880a94f2a20 [ 146.748847] FS: 00007f96f090f700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 146.757819] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 146.764118] CR2: 000055f3dffff970 CR3: 000000008fe8f000 CR4: 00000000001406e0 [ 146.771520] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 146.778944] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 146.786879] Kernel panic - not syncing: Fatal exception [ 146.793993] Kernel Offset: disabled [ 146.797627] Rebooting in 86400 seconds..