[ 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 '10.128.0.107' (ECDSA) to the list of known hosts. 2020/08/27 19:35:01 parsed 1 programs 2020/08/27 19:35:01 executed programs: 0 syzkaller login: [ 146.002654][ T6828] IPVS: ftp: loaded support on port[0] = 21 [ 146.129656][ T6828] chnl_net:caif_netlink_parms(): no params data found [ 146.177378][ T6828] bridge0: port 1(bridge_slave_0) entered blocking state [ 146.184817][ T6828] bridge0: port 1(bridge_slave_0) entered disabled state [ 146.194743][ T6828] device bridge_slave_0 entered promiscuous mode [ 146.203726][ T6828] bridge0: port 2(bridge_slave_1) entered blocking state [ 146.211515][ T6828] bridge0: port 2(bridge_slave_1) entered disabled state [ 146.219706][ T6828] device bridge_slave_1 entered promiscuous mode [ 146.239228][ T6828] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 146.249793][ T6828] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 146.270735][ T6828] team0: Port device team_slave_0 added [ 146.277906][ T6828] team0: Port device team_slave_1 added [ 146.294771][ T6828] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 146.301881][ T6828] 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. [ 146.329444][ T6828] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 146.341995][ T6828] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 146.349873][ T6828] 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. [ 146.376751][ T6828] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 146.402011][ T6828] device hsr_slave_0 entered promiscuous mode [ 146.408688][ T6828] device hsr_slave_1 entered promiscuous mode [ 146.496070][ T6828] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 146.505491][ T6828] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 146.519504][ T6828] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 146.531603][ T6828] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 146.554650][ T6828] bridge0: port 2(bridge_slave_1) entered blocking state [ 146.561845][ T6828] bridge0: port 2(bridge_slave_1) entered forwarding state [ 146.569807][ T6828] bridge0: port 1(bridge_slave_0) entered blocking state [ 146.577008][ T6828] bridge0: port 1(bridge_slave_0) entered forwarding state [ 146.618418][ T6828] 8021q: adding VLAN 0 to HW filter on device bond0 [ 146.632843][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 146.643272][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 146.652076][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 146.660438][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 146.673137][ T6828] 8021q: adding VLAN 0 to HW filter on device team0 [ 146.685188][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 146.694318][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 146.701729][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 146.713701][ T3925] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 146.722904][ T3925] bridge0: port 2(bridge_slave_1) entered blocking state [ 146.730023][ T3925] bridge0: port 2(bridge_slave_1) entered forwarding state [ 146.747353][ T7047] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 146.767548][ T7047] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 146.775447][ T7047] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 146.785226][ T7047] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 146.793915][ T7047] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 146.804319][ T6828] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 146.822424][ T3925] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 146.830372][ T3925] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 146.843217][ T6828] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 146.860420][ T3925] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 146.878682][ T3925] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 146.887684][ T3925] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 146.895353][ T3925] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 146.906858][ T6828] device veth0_vlan entered promiscuous mode [ 146.920285][ T6828] device veth1_vlan entered promiscuous mode [ 146.940888][ T7047] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 146.949744][ T7047] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 146.959827][ T7047] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 146.970637][ T6828] device veth0_macvtap entered promiscuous mode [ 146.980663][ T6828] device veth1_macvtap entered promiscuous mode [ 146.995706][ T6828] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 147.003362][ T3925] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 147.012788][ T3925] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 147.024169][ T6828] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 147.031779][ T7047] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 147.043295][ T6828] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 147.053618][ T6828] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 147.062860][ T6828] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 147.072236][ T6828] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 148.006498][ T7047] Bluetooth: hci0: command 0x0409 tx timeout 2020/08/27 19:35:06 executed programs: 107 [ 150.085953][ T7047] Bluetooth: hci0: command 0x041b tx timeout [ 152.167440][ T7047] Bluetooth: hci0: command 0x040f tx timeout [ 154.246231][ T7047] Bluetooth: hci0: command 0x0419 tx timeout 2020/08/27 19:35:11 executed programs: 314 2020/08/27 19:35:16 executed programs: 656 2020/08/27 19:35:21 executed programs: 1111 [ 165.805554][T10933] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 165.818129][T10933] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 165.826515][T10933] CPU: 1 PID: 10933 Comm: syz-executor.0 Not tainted 5.9.0-rc2-syzkaller #0 [ 165.835185][T10933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.845227][T10933] RIP: 0010:sock_close+0xc5/0x260 [ 165.850226][T10933] Code: fc ff df 41 80 3c 04 00 74 08 4c 89 ff e8 e3 cf 49 fb 49 8b 1f 48 83 c3 10 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 bd cf 49 fb 4c 89 f7 ff 13 49 8d 5e [ 165.869809][T10933] RSP: 0018:ffffc9000535fe10 EFLAGS: 00010202 [ 165.875856][T10933] RAX: 0000000000000002 RBX: 0000000000000010 RCX: dffffc0000000000 [ 165.883854][T10933] RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000001 [ 165.891819][T10933] RBP: ffffffff88bbc748 R08: dffffc0000000000 R09: ffffed1010361edf [ 165.899774][T10933] R10: ffffed1010361edf R11: 0000000000000000 R12: 1ffff11010361eac [ 165.907735][T10933] R13: ffff888081b0f6e0 R14: ffff888081b0f540 R15: ffff888081b0f560 [ 165.915685][T10933] FS: 00007fad45047700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 165.924593][T10933] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 165.931185][T10933] CR2: 00007fad45025db8 CR3: 0000000084c1d000 CR4: 00000000001506e0 [ 165.939151][T10933] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 165.947103][T10933] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 165.955046][T10933] Call Trace: [ 165.958327][T10933] ? sock_mmap+0x90/0x90 [ 165.962544][T10933] __fput+0x34f/0x7b0 [ 165.966502][T10933] task_work_run+0x137/0x1c0 [ 165.971068][T10933] exit_to_user_mode_prepare+0xfa/0x1b0 [ 165.976588][T10933] syscall_exit_to_user_mode+0x5e/0x1a0 [ 165.982119][T10933] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 165.987982][T10933] RIP: 0033:0x45d5b9 [ 165.991849][T10933] 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 [ 166.011428][T10933] RSP: 002b:00007fad45046c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 [ 166.020161][T10933] RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9 [ 166.028126][T10933] RDX: 0000000000000004 RSI: 0000000000000001 RDI: 0000000000000005 [ 166.036075][T10933] RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000 [ 166.044024][T10933] R10: 00000000200003c0 R11: 0000000000000246 R12: 000000000118cf4c [ 166.051979][T10933] R13: 00007ffd8c03abcf R14: 00007fad450479c0 R15: 000000000118cf4c [ 166.059950][T10933] Modules linked in: [ 166.072761][T10933] ---[ end trace a8eab99154db8026 ]--- [ 166.078262][T10933] RIP: 0010:sock_close+0xc5/0x260 [ 166.083278][T10933] Code: fc ff df 41 80 3c 04 00 74 08 4c 89 ff e8 e3 cf 49 fb 49 8b 1f 48 83 c3 10 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 bd cf 49 fb 4c 89 f7 ff 13 49 8d 5e [ 166.104447][T10933] RSP: 0018:ffffc9000535fe10 EFLAGS: 00010202 [ 166.110958][T10933] RAX: 0000000000000002 RBX: 0000000000000010 RCX: dffffc0000000000 [ 166.119337][T10933] RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000001 [ 166.127865][T10933] RBP: ffffffff88bbc748 R08: dffffc0000000000 R09: ffffed1010361edf [ 166.136424][T10933] R10: ffffed1010361edf R11: 0000000000000000 R12: 1ffff11010361eac [ 166.144421][T10933] R13: ffff888081b0f6e0 R14: ffff888081b0f540 R15: ffff888081b0f560 [ 166.153249][T10933] FS: 00007fad45047700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 166.168367][T10933] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 166.175051][T10933] CR2: 00007f6e37205010 CR3: 0000000084c1d000 CR4: 00000000001506e0 [ 166.183722][T10933] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 166.192156][T10933] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 166.200667][T10933] Kernel panic - not syncing: Fatal exception [ 166.207967][T10933] Kernel Offset: disabled [ 166.212290][T10933] Rebooting in 86400 seconds..