[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.38' (ECDSA) to the list of known hosts. 2020/08/28 08:57:27 parsed 1 programs 2020/08/28 08:57:28 executed programs: 0 syzkaller login: [ 149.411978] audit: type=1400 audit(1598605047.995:8): avc: denied { execmem } for pid=6492 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 150.579651] IPVS: ftp: loaded support on port[0] = 21 [ 150.691459] chnl_net:caif_netlink_parms(): no params data found [ 150.756336] bridge0: port 1(bridge_slave_0) entered blocking state [ 150.762850] bridge0: port 1(bridge_slave_0) entered disabled state [ 150.771324] device bridge_slave_0 entered promiscuous mode [ 150.779670] bridge0: port 2(bridge_slave_1) entered blocking state [ 150.786613] bridge0: port 2(bridge_slave_1) entered disabled state [ 150.793688] device bridge_slave_1 entered promiscuous mode [ 150.811050] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 150.819836] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 150.838460] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 150.846675] team0: Port device team_slave_0 added [ 150.852098] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 150.859679] team0: Port device team_slave_1 added [ 150.874673] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 150.880901] 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. [ 150.906253] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 150.917925] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 150.924229] 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. [ 150.949481] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 150.960500] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 150.968186] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 150.987936] device hsr_slave_0 entered promiscuous mode [ 150.993862] device hsr_slave_1 entered promiscuous mode [ 150.999830] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 151.007100] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 151.075426] bridge0: port 2(bridge_slave_1) entered blocking state [ 151.081836] bridge0: port 2(bridge_slave_1) entered forwarding state [ 151.088693] bridge0: port 1(bridge_slave_0) entered blocking state [ 151.095104] bridge0: port 1(bridge_slave_0) entered forwarding state [ 151.128623] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 151.136645] 8021q: adding VLAN 0 to HW filter on device bond0 [ 151.146205] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 151.155416] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 151.164560] bridge0: port 1(bridge_slave_0) entered disabled state [ 151.171516] bridge0: port 2(bridge_slave_1) entered disabled state [ 151.179548] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 151.190631] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 151.196968] 8021q: adding VLAN 0 to HW filter on device team0 [ 151.206760] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 151.214465] bridge0: port 1(bridge_slave_0) entered blocking state [ 151.220789] bridge0: port 1(bridge_slave_0) entered forwarding state [ 151.244236] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 151.251875] bridge0: port 2(bridge_slave_1) entered blocking state [ 151.258299] bridge0: port 2(bridge_slave_1) entered forwarding state [ 151.266565] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 151.274670] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 151.282169] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 151.290538] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 151.299367] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 151.306284] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 151.313168] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 151.327052] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 151.338056] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 151.346761] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 151.354172] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 151.366614] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 151.377489] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 151.412447] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 151.420659] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 151.427855] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 151.437585] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 151.445413] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 151.452286] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 151.461401] device veth0_vlan entered promiscuous mode [ 151.470678] device veth1_vlan entered promiscuous mode [ 151.477057] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 151.488441] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 151.500478] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 151.510520] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 151.518449] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 151.526363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 151.536046] device veth0_macvtap entered promiscuous mode [ 151.542126] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 151.550716] device veth1_macvtap entered promiscuous mode [ 151.559880] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 151.569920] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 151.581189] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 151.588877] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 151.597407] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 151.607443] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 151.614706] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 152.594412] Bluetooth: hci0: command 0x0409 tx timeout 2020/08/28 08:57:33 executed programs: 135 [ 154.674102] Bluetooth: hci0: command 0x041b tx timeout [ 156.753538] Bluetooth: hci0: command 0x040f tx timeout [ 158.833530] Bluetooth: hci0: command 0x0419 tx timeout 2020/08/28 08:57:38 executed programs: 580 2020/08/28 08:57:43 executed programs: 1115 [ 165.809303] kasan: CONFIG_KASAN_INLINE enabled [ 165.814282] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 165.821682] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 165.827916] CPU: 1 PID: 10706 Comm: syz-executor.0 Not tainted 4.19.142-syzkaller #0 [ 165.835809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.846108] RIP: 0010:__sock_release+0xbb/0x2a0 [ 165.850995] 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 [ 165.869973] RSP: 0018:ffff88809fadfdf8 EFLAGS: 00010202 [ 165.875323] RAX: dffffc0000000000 RBX: ffff88807b8ad4c0 RCX: 0000000000004724 [ 165.882593] RDX: 0000000000000002 RSI: 00000000a87acb66 RDI: 0000000000000010 [ 165.890048] RBP: ffff88807b8ad5c8 R08: ffffffff8b40e1a0 R09: 0000000000000000 [ 165.897812] R10: ffff8880a8158888 R11: 0000000000000000 R12: 0000000000000000 [ 165.905077] R13: ffff88807b8ad4e8 R14: 0000000000000000 R15: ffff8880a9e70620 [ 165.912426] FS: 0000000002fe1940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 165.922560] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 165.928925] CR2: 00007fc035635db8 CR3: 00000000a8697000 CR4: 00000000001406e0 [ 165.936195] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 165.943688] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 165.950971] Call Trace: [ 165.953691] ? __sock_release+0x2a0/0x2a0 [ 165.957840] sock_close+0x15/0x20 [ 165.961381] __fput+0x2ce/0x890 [ 165.964664] task_work_run+0x148/0x1c0 [ 165.968568] exit_to_usermode_loop+0x251/0x2a0 [ 165.973415] do_syscall_64+0x538/0x620 [ 165.977300] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.982656] RIP: 0033:0x416f01 [ 165.985843] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 166.005018] RSP: 002b:00007ffee7a7dce0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 166.014093] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000416f01 [ 166.021383] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 0000000000000003 [ 166.028681] RBP: 0000000000000000 R08: 0000000001190340 R09: 0000000000000000 [ 166.036299] R10: 00007ffee7a7ddc0 R11: 0000000000000293 R12: 0000000001190348 [ 166.043553] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000000118cf4c [ 166.052892] Modules linked in: [ 166.057150] ---[ end trace 3a2f355571910dda ]--- [ 166.062630] RIP: 0010:__sock_release+0xbb/0x2a0 [ 166.067714] 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 [ 166.087090] RSP: 0018:ffff88809fadfdf8 EFLAGS: 00010202 [ 166.094366] RAX: dffffc0000000000 RBX: ffff88807b8ad4c0 RCX: 0000000000004724 [ 166.102294] RDX: 0000000000000002 RSI: 00000000a87acb66 RDI: 0000000000000010 [ 166.109655] RBP: ffff88807b8ad5c8 R08: ffffffff8b40e1a0 R09: 0000000000000000 [ 166.117063] R10: ffff8880a8158888 R11: 0000000000000000 R12: 0000000000000000 [ 166.124486] R13: ffff88807b8ad4e8 R14: 0000000000000000 R15: ffff8880a9e70620 [ 166.133754] FS: 0000000002fe1940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 166.142773] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 166.149767] CR2: 00007fc035635db8 CR3: 00000000a8697000 CR4: 00000000001406e0 [ 166.157104] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 166.165396] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 166.173015] Kernel panic - not syncing: Fatal exception [ 166.179633] Kernel Offset: disabled [ 166.183261] Rebooting in 86400 seconds..