[ 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 '10.128.0.84' (ECDSA) to the list of known hosts. syzkaller login: [ 56.766474][ T7034] IPVS: ftp: loaded support on port[0] = 21 [ 56.858026][ T7034] chnl_net:caif_netlink_parms(): no params data found [ 56.913317][ T7034] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.920775][ T7034] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.929787][ T7034] device bridge_slave_0 entered promiscuous mode [ 56.938930][ T7034] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.946932][ T7034] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.955274][ T7034] device bridge_slave_1 entered promiscuous mode [ 56.977038][ T7034] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.987969][ T7034] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.012388][ T7034] team0: Port device team_slave_0 added [ 57.020190][ T7034] team0: Port device team_slave_1 added [ 57.039245][ T7034] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 57.046406][ T7034] 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. [ 57.072860][ T7034] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 57.085667][ T7034] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 57.092801][ T7034] 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. [ 57.119114][ T7034] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 57.194947][ T7034] device hsr_slave_0 entered promiscuous mode [ 57.241480][ T7034] device hsr_slave_1 entered promiscuous mode [ 57.369029][ T7034] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.404751][ T7034] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.455073][ T7034] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.524271][ T7034] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.607067][ T7034] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.614788][ T7034] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.623796][ T7034] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.631168][ T7034] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.677496][ T7034] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.695022][ T2842] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.705879][ T2842] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.715686][ T2842] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.724955][ T2842] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 57.738339][ T7034] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.749608][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.760976][ T29] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.768047][ T29] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.782091][ T2842] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.790774][ T2842] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.798148][ T2842] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.823067][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.832303][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.842538][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.857089][ T7034] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 57.868110][ T7034] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 57.882181][ T2923] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 57.890561][ T2923] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.900145][ T2923] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 57.909106][ T2923] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.918437][ T2923] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.942958][ T2842] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.950606][ T2842] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.960947][ T7034] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.980530][ T2842] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 57.990395][ T2842] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.011642][ T2842] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 58.019847][ T2842] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 58.029855][ T7034] device veth0_vlan entered promiscuous mode [ 58.038949][ T2700] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 58.047601][ T2700] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 58.060081][ T7034] device veth1_vlan entered promiscuous mode [ 58.082062][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 58.090051][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 58.099353][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 58.112375][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 58.123441][ T7034] device veth0_macvtap entered promiscuous mode [ 58.135047][ T7034] device veth1_macvtap entered promiscuous mode [ 58.151685][ T7034] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 58.159460][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 58.160155][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 58.176815][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 58.187347][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 58.198768][ T7034] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 58.206771][ T2923] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 58.216057][ T2923] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 58.585461][ T7243] ------------[ cut here ]------------ [ 58.591050][ T7243] AppArmor WARN aa_sock_msg_perm: ((!sock)): [ 58.591447][ T7243] WARNING: CPU: 1 PID: 7243 at security/apparmor/lsm.c:933 aa_sock_msg_perm.isra.0+0xd1/0x160 [ 58.607738][ T7243] Kernel panic - not syncing: panic_on_warn set ... [ 58.614448][ T7243] CPU: 1 PID: 7243 Comm: syz-executor728 Not tainted 5.7.0-rc5-syzkaller #0 [ 58.623108][ T7243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.633155][ T7243] Call Trace: [ 58.636484][ T7243] dump_stack+0x188/0x20d [ 58.640883][ T7243] ? aa_sock_msg_perm.isra.0+0x70/0x160 [ 58.646409][ T7243] panic+0x2e3/0x75c [ 58.650280][ T7243] ? add_taint.cold+0x16/0x16 [ 58.655114][ T7243] ? __probe_kernel_read+0x188/0x1d0 [ 58.660383][ T7243] ? __warn.cold+0x14/0x35 [ 58.664873][ T7243] ? __warn+0xd5/0x1c8 [ 58.668933][ T7243] ? aa_sock_msg_perm.isra.0+0xd1/0x160 [ 58.674465][ T7243] __warn.cold+0x2f/0x35 [ 58.678701][ T7243] ? aa_sock_msg_perm.isra.0+0xd1/0x160 [ 58.684221][ T7243] report_bug+0x27b/0x2f0 [ 58.688532][ T7243] do_error_trap+0x12b/0x220 [ 58.693121][ T7243] ? aa_sock_msg_perm.isra.0+0xd1/0x160 [ 58.698656][ T7243] do_invalid_op+0x32/0x40 [ 58.703074][ T7243] ? aa_sock_msg_perm.isra.0+0xd1/0x160 [ 58.708687][ T7243] invalid_op+0x23/0x30 [ 58.712825][ T7243] RIP: 0010:aa_sock_msg_perm.isra.0+0xd1/0x160 [ 58.718956][ T7243] Code: 89 ee 4c 89 e7 5b 5d 41 5c 41 5d 41 5e e9 d7 4d 03 00 e8 32 0e 0e fe 48 c7 c6 60 ef 6c 88 48 c7 c7 a0 d9 6c 88 e8 07 48 df fd <0f> 0b e9 4a ff ff ff e8 13 0e 0e fe 48 c7 c6 60 ef 6c 88 48 c7 c7 [ 58.738649][ T7243] RSP: 0018:ffffc900018c7a38 EFLAGS: 00010286 [ 58.744697][ T7243] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 58.752676][ T7243] RDX: 0000000000000000 RSI: ffffffff815ce751 RDI: fffff52000318f39 [ 58.760633][ T7243] RBP: ffffc900018c7d78 R08: ffff8880931dc480 R09: 0000000000000000 [ 58.769282][ T7243] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff886cd960 [ 58.777250][ T7243] R13: 0000000000000004 R14: 0000000000001000 R15: 0000000040000000 [ 58.785319][ T7243] ? vprintk_func+0x81/0x17e [ 58.790048][ T7243] ? aa_sock_msg_perm.isra.0+0xd1/0x160 [ 58.795591][ T7243] security_socket_recvmsg+0x78/0xc0 [ 58.801217][ T7243] sock_recvmsg+0x47/0x110 [ 58.805722][ T7243] mptcp_recvmsg+0xb3b/0xd90 [ 58.810827][ T7243] ? mptcp_accept+0x5c0/0x5c0 [ 58.816289][ T7243] ? prepare_to_wait_exclusive+0x2c0/0x2c0 [ 58.823645][ T7243] ? aa_sk_perm+0x319/0xab0 [ 58.828151][ T7243] inet_recvmsg+0x121/0x5d0 [ 58.832650][ T7243] ? inet_sendpage+0x140/0x140 [ 58.837395][ T7243] ? security_socket_recvmsg+0x8e/0xc0 [ 58.843284][ T7243] ? inet_sendpage+0x140/0x140 [ 58.848114][ T7243] sock_recvmsg+0xca/0x110 [ 58.852531][ T7243] __sys_recvfrom+0x1c5/0x2f0 [ 58.857286][ T7243] ? __ia32_sys_send+0x100/0x100 [ 58.862211][ T7243] ? fput_many+0x2f/0x1a0 [ 58.866552][ T7243] ? __sys_connect+0x109/0x190 [ 58.871313][ T7243] ? __x64_sys_futex+0x376/0x4f0 [ 58.876249][ T7243] ? __x64_sys_futex+0x380/0x4f0 [ 58.881191][ T7243] ? switch_fpu_return+0x1db/0x4b0 [ 58.886279][ T7243] ? fpregs_mark_activate+0x320/0x320 [ 58.891667][ T7243] __x64_sys_recvfrom+0xdd/0x1b0 [ 58.896598][ T7243] ? lockdep_hardirqs_on+0x463/0x620 [ 58.901867][ T7243] do_syscall_64+0xf6/0x7d0 [ 58.906465][ T7243] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.912434][ T7243] RIP: 0033:0x448ef9 [ 58.916411][ T7243] Code: e8 cc 14 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 9b 0c fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 58.936094][ T7243] RSP: 002b:00007f0c1ca94da8 EFLAGS: 00000246 ORIG_RAX: 000000000000002d [ 58.944493][ T7243] RAX: ffffffffffffffda RBX: 00000000006dec28 RCX: 0000000000448ef9 [ 58.952994][ T7243] RDX: 0000000000001000 RSI: 00000000200004c0 RDI: 0000000000000003 [ 58.960969][ T7243] RBP: 00000000006dec20 R08: 0000000000000000 R09: 0000000000000000 [ 58.968933][ T7243] R10: 0000000040000000 R11: 0000000000000246 R12: 00000000006dec2c [ 58.977687][ T7243] R13: 00007fffd2d3e33f R14: 00007f0c1ca959c0 R15: 00000000006dec2c [ 58.987508][ T7243] Kernel Offset: disabled [ 58.991925][ T7243] Rebooting in 86400 seconds..