[ OK ] Started Getty on tty3. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty2. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.40' (ECDSA) to the list of known hosts. syzkaller login: [ 62.472084][ T7055] IPVS: ftp: loaded support on port[0] = 21 [ 62.567972][ T7055] chnl_net:caif_netlink_parms(): no params data found [ 62.624387][ T7055] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.632762][ T7055] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.645389][ T7055] device bridge_slave_0 entered promiscuous mode [ 62.654873][ T7055] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.662944][ T7055] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.671777][ T7055] device bridge_slave_1 entered promiscuous mode [ 62.692949][ T7055] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.703896][ T7055] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.728159][ T7055] team0: Port device team_slave_0 added [ 62.736547][ T7055] team0: Port device team_slave_1 added [ 62.754716][ T7055] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.762196][ T7055] 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. [ 62.789117][ T7055] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.802104][ T7055] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.809848][ T7055] 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. [ 62.836780][ T7055] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.900487][ T7055] device hsr_slave_0 entered promiscuous mode [ 62.937026][ T7055] device hsr_slave_1 entered promiscuous mode [ 63.075895][ T7055] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.131172][ T7055] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.190112][ T7055] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.239109][ T7055] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.294558][ T7055] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.302035][ T7055] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.311005][ T7055] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.319731][ T7055] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.372338][ T7055] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.389357][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.400812][ T24] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.410981][ T24] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.420075][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.434265][ T7055] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.447464][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.458361][ T3183] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.466559][ T3183] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.489084][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.498604][ T24] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.505672][ T24] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.515106][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.524732][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.537834][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.554746][ T7055] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.565913][ T7055] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.579824][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.589157][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.600132][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.609869][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.620085][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.644613][ T7055] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.652504][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.662392][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.686524][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 63.695744][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.715177][ T7055] device veth0_vlan entered promiscuous mode [ 63.722538][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 63.731727][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.744751][ T7055] device veth1_vlan entered promiscuous mode [ 63.753301][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.761881][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.770307][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.794020][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.802911][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 63.812622][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.824861][ T7055] device veth0_macvtap entered promiscuous mode [ 63.836653][ T7055] device veth1_macvtap entered promiscuous mode [ 63.854344][ T7055] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.863572][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.874306][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 63.882807][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 63.892126][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.904691][ T7055] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.913181][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 63.923180][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 64.311559][ T7264] ------------[ cut here ]------------ [ 64.317960][ T7264] AppArmor WARN aa_sock_msg_perm: ((!sock)): [ 64.318193][ T7264] WARNING: CPU: 1 PID: 7264 at security/apparmor/lsm.c:933 aa_sock_msg_perm.isra.0+0xd1/0x160 [ 64.335139][ T7264] Kernel panic - not syncing: panic_on_warn set ... [ 64.343231][ T7264] CPU: 1 PID: 7264 Comm: syz-executor397 Not tainted 5.7.0-rc7-syzkaller #0 [ 64.352387][ T7264] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.363097][ T7264] Call Trace: [ 64.367278][ T7264] dump_stack+0x188/0x20d [ 64.371845][ T7264] ? aa_sock_msg_perm.isra.0+0x50/0x160 [ 64.378471][ T7264] panic+0x2e3/0x75c [ 64.382389][ T7264] ? add_taint.cold+0x16/0x16 [ 64.387081][ T7264] ? __probe_kernel_read+0x188/0x1d0 [ 64.392423][ T7264] ? __warn.cold+0x14/0x35 [ 64.396871][ T7264] ? __warn+0xd5/0x1c8 [ 64.401045][ T7264] ? aa_sock_msg_perm.isra.0+0xd1/0x160 [ 64.407164][ T7264] __warn.cold+0x2f/0x35 [ 64.411504][ T7264] ? aa_sock_msg_perm.isra.0+0xd1/0x160 [ 64.417152][ T7264] report_bug+0x27b/0x2f0 [ 64.421489][ T7264] do_error_trap+0x12b/0x220 [ 64.426079][ T7264] ? aa_sock_msg_perm.isra.0+0xd1/0x160 [ 64.431611][ T7264] do_invalid_op+0x32/0x40 [ 64.436236][ T7264] ? aa_sock_msg_perm.isra.0+0xd1/0x160 [ 64.441903][ T7264] invalid_op+0x23/0x30 [ 64.446082][ T7264] RIP: 0010:aa_sock_msg_perm.isra.0+0xd1/0x160 [ 64.452513][ T7264] Code: 89 ee 4c 89 e7 5b 5d 41 5c 41 5d 41 5e e9 d7 4d 03 00 e8 42 16 0e fe 48 c7 c6 e0 f0 6c 88 48 c7 c7 20 db 6c 88 e8 07 47 df fd <0f> 0b e9 4a ff ff ff e8 23 16 0e fe 48 c7 c6 e0 f0 6c 88 48 c7 c7 [ 64.472402][ T7264] RSP: 0018:ffffc90001cefa38 EFLAGS: 00010286 [ 64.478450][ T7264] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 64.486533][ T7264] RDX: 0000000000000000 RSI: ffffffff815cf181 RDI: fffff5200039df39 [ 64.494524][ T7264] RBP: ffffc90001cefd78 R08: ffff88808ac46000 R09: 0000000000000000 [ 64.503040][ T7264] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff886cdae0 [ 64.511709][ T7264] R13: 0000000000000004 R14: 0000000000001000 R15: 0000000040000000 [ 64.520050][ T7264] ? vprintk_func+0x81/0x17e [ 64.524628][ T7264] ? aa_sock_msg_perm.isra.0+0xd1/0x160 [ 64.530168][ T7264] security_socket_recvmsg+0x78/0xc0 [ 64.535627][ T7264] sock_recvmsg+0x47/0x110 [ 64.540221][ T7264] mptcp_recvmsg+0xb3b/0xd90 [ 64.546122][ T7264] ? mptcp_accept+0x5c0/0x5c0 [ 64.550792][ T7264] ? prepare_to_wait_exclusive+0x2c0/0x2c0 [ 64.556608][ T7264] ? aa_sk_perm+0x319/0xab0 [ 64.561107][ T7264] inet_recvmsg+0x121/0x5d0 [ 64.567191][ T7264] ? inet_sendpage+0x140/0x140 [ 64.571939][ T7264] ? security_socket_recvmsg+0x8e/0xc0 [ 64.577388][ T7264] ? inet_sendpage+0x140/0x140 [ 64.582151][ T7264] sock_recvmsg+0xca/0x110 [ 64.586574][ T7264] __sys_recvfrom+0x1c5/0x2f0 [ 64.591248][ T7264] ? __ia32_sys_send+0x100/0x100 [ 64.596190][ T7264] ? fput_many+0x2f/0x1a0 [ 64.600499][ T7264] ? __sys_connect+0x109/0x190 [ 64.605240][ T7264] ? __x64_sys_futex+0x376/0x4f0 [ 64.610170][ T7264] ? __x64_sys_futex+0x380/0x4f0 [ 64.615984][ T7264] ? switch_fpu_return+0x1db/0x4b0 [ 64.621097][ T7264] ? fpregs_mark_activate+0x320/0x320 [ 64.626459][ T7264] __x64_sys_recvfrom+0xdd/0x1b0 [ 64.632275][ T7264] ? lockdep_hardirqs_on+0x463/0x620 [ 64.637575][ T7264] do_syscall_64+0xf6/0x7d0 [ 64.642058][ T7264] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 64.647932][ T7264] RIP: 0033:0x448ef9 [ 64.651904][ T7264] 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 [ 64.671682][ T7264] RSP: 002b:00007f1267996da8 EFLAGS: 00000246 ORIG_RAX: 000000000000002d [ 64.680098][ T7264] RAX: ffffffffffffffda RBX: 00000000006dec28 RCX: 0000000000448ef9 [ 64.688491][ T7264] RDX: 0000000000001000 RSI: 00000000200004c0 RDI: 0000000000000003 [ 64.696452][ T7264] RBP: 00000000006dec20 R08: 0000000000000000 R09: 0000000000000000 [ 64.704451][ T7264] R10: 0000000040000000 R11: 0000000000000246 R12: 00000000006dec2c [ 64.712596][ T7264] R13: 00007ffefeafb0ff R14: 00007f12679979c0 R15: 00000000006dec2c [ 64.722090][ T7264] Kernel Offset: disabled [ 64.726503][ T7264] Rebooting in 86400 seconds..