[ 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 '10.128.0.225' (ECDSA) to the list of known hosts. 2022/06/16 23:40:18 parsed 1 programs 2022/06/16 23:40:18 executed programs: 0 syzkaller login: [ 47.059067] IPVS: ftp: loaded support on port[0] = 21 [ 47.141572] chnl_net:caif_netlink_parms(): no params data found [ 47.194472] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.201513] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.208478] device bridge_slave_0 entered promiscuous mode [ 47.216105] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.222718] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.229592] device bridge_slave_1 entered promiscuous mode [ 47.245624] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 47.254181] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 47.271910] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 47.279091] team0: Port device team_slave_0 added [ 47.285300] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 47.292926] team0: Port device team_slave_1 added [ 47.307904] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 47.314172] 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. [ 47.339431] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 47.351142] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 47.357367] 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. [ 47.382654] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 47.393165] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 47.400666] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.418473] device hsr_slave_0 entered promiscuous mode [ 47.424412] device hsr_slave_1 entered promiscuous mode [ 47.430522] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 47.437566] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 47.497348] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.503780] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.510665] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.517014] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.541037] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 47.547095] 8021q: adding VLAN 0 to HW filter on device bond0 [ 47.558392] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 47.566624] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 47.574653] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.592566] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.602587] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 47.608641] 8021q: adding VLAN 0 to HW filter on device team0 [ 47.617422] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.625381] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.631762] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.642218] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.650474] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.656833] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.670338] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 47.678285] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 47.691300] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 47.698842] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 47.706724] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 47.716527] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 47.722698] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 47.734564] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 47.741983] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 47.748595] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 47.758349] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 47.805786] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 47.815204] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 47.843319] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 47.850786] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 47.857149] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 47.866486] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 47.874248] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 47.881629] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 47.890589] device veth0_vlan entered promiscuous mode [ 47.899102] device veth1_vlan entered promiscuous mode [ 47.905619] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 47.914371] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 47.925162] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 47.934324] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 47.941832] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 47.948928] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 47.958582] device veth0_macvtap entered promiscuous mode [ 47.964692] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 47.973110] device veth1_macvtap entered promiscuous mode [ 47.981612] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 47.990606] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 48.000571] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 48.007275] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 48.015568] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 48.024747] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 48.032477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 48.130878] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.197748] skbuff: skb_over_panic: text:ffffffff864f820d len:736 put:72 head:ffff888094a75b00 data:ffff888094a75b00 tail:0x2e0 end:0x2c0 dev: [ 48.212174] ------------[ cut here ]------------ [ 48.216928] kernel BUG at net/core/skbuff.c:104! [ 48.223309] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 48.228673] Modules linked in: [ 48.231849] CPU: 0 PID: 8240 Comm: syz-executor.0 Not tainted 4.14.284-syzkaller #0 [ 48.239648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.248996] task: ffff8880af59a580 task.stack: ffff888094b78000 [ 48.255036] RIP: 0010:skb_panic+0x172/0x174 [ 48.259350] RSP: 0018:ffff888094b7f1c8 EFLAGS: 00010282 [ 48.264690] RAX: 0000000000000088 RBX: ffff88809d680400 RCX: 0000000000000000 [ 48.271937] RDX: 0000000000000000 RSI: ffffffff878bc800 RDI: ffffed101296fe2f [ 48.279178] RBP: ffffffff8855bb20 R08: 0000000000000088 R09: 0000000000000000 [ 48.286434] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff864f820d [ 48.293681] R13: 0000000000000048 R14: ffffffff8855b380 R15: 00000000000002c0 [ 48.300935] FS: 00007f8fb7e76700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 48.309138] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.314992] CR2: 00007f6eeeb6d000 CR3: 000000009dcf6000 CR4: 00000000003406f0 [ 48.322322] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.329592] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.336846] Call Trace: [ 48.339592] ? pfkey_send_acquire+0x161d/0x2360 [ 48.344240] skb_put.cold+0x24/0x24 [ 48.347842] pfkey_send_acquire+0x161d/0x2360 [ 48.352315] km_query+0xa9/0x1b0 [ 48.355655] xfrm_state_find+0x1847/0x27c0 [ 48.359867] ? xfrm_state_afinfo_get_rcu+0xb0/0xb0 [ 48.364772] ? __lock_acquire+0x5fc/0x3f20 [ 48.368981] xfrm_resolve_and_create_bundle+0x29b/0x2630 [ 48.374418] ? trace_hardirqs_on+0x10/0x10 [ 48.378632] ? perf_trace_lock+0x412/0x490 [ 48.382848] ? xfrm_net_init+0x970/0x970 [ 48.386896] ? xfrm_sk_policy_lookup+0x2b4/0x450 [ 48.391635] ? lock_acquire+0x170/0x3f0 [ 48.395581] ? lock_downgrade+0x740/0x740 [ 48.399704] ? xfrm_sk_policy_lookup+0x2db/0x450 [ 48.404438] ? xfrm_expand_policies+0x36e/0x520 [ 48.409098] xfrm_lookup+0x1ee/0x1790 [ 48.412881] ? rt_set_nexthop.constprop.0+0x662/0xd20 [ 48.418045] ? xfrm_expand_policies+0x520/0x520 [ 48.422732] ? ip_route_output_key_hash+0x1d6/0x2a0 [ 48.427727] ? ip_route_output_key_hash_rcu+0x29f0/0x29f0 [ 48.433239] ? udp_sendmsg+0xe43/0x1c80 [ 48.437206] xfrm_lookup_route+0x33/0x1b0 [ 48.441350] ip_route_output_flow+0xf9/0x130 [ 48.445829] udp_sendmsg+0x13b3/0x1c80 [ 48.449701] ? ip_do_fragment+0x1fb0/0x1fb0 [ 48.454005] ? udp_seq_next+0xa0/0xa0 [ 48.457778] ? finish_task_switch+0x178/0x610 [ 48.462264] ? __might_fault+0x104/0x1b0 [ 48.466300] ? rw_copy_check_uvector+0x1dd/0x2b0 [ 48.471030] ? lock_acquire+0x170/0x3f0 [ 48.474977] ? dup_iter+0x240/0x240 [ 48.478599] ? copy_msghdr_from_user+0x218/0x3b0 [ 48.483327] ? kernel_recvmsg+0x210/0x210 [ 48.487447] inet_sendmsg+0x11a/0x4e0 [ 48.491223] ? security_socket_sendmsg+0x83/0xb0 [ 48.495959] ? inet_recvmsg+0x4d0/0x4d0 [ 48.499909] sock_sendmsg+0xb5/0x100 [ 48.503595] ___sys_sendmsg+0x326/0x800 [ 48.507545] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 48.512278] ? trace_hardirqs_on+0x10/0x10 [ 48.516486] ? __fget+0x23e/0x3e0 [ 48.519912] ? lock_acquire+0x170/0x3f0 [ 48.523861] ? lock_downgrade+0x740/0x740 [ 48.527981] ? __might_fault+0x104/0x1b0 [ 48.532017] ? lock_acquire+0x170/0x3f0 [ 48.535968] __sys_sendmmsg+0x129/0x330 [ 48.539919] ? SyS_sendmsg+0x40/0x40 [ 48.543605] ? lock_acquire+0x170/0x3f0 [ 48.547557] ? ip_setsockopt+0x43/0xb0 [ 48.551423] ? SyS_futex+0x1da/0x290 [ 48.555108] ? SyS_futex+0x1e3/0x290 [ 48.558794] ? do_futex+0x1570/0x1570 [ 48.562567] SyS_sendmmsg+0x2f/0x50 [ 48.566168] ? __sys_sendmmsg+0x330/0x330 [ 48.570305] do_syscall_64+0x1d5/0x640 [ 48.574168] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 48.579345] RIP: 0033:0x7f8fb8722109 [ 48.583029] RSP: 002b:00007f8fb7e76168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 48.590708] RAX: ffffffffffffffda RBX: 00007f8fb8835030 RCX: 00007f8fb8722109 [ 48.597948] RDX: 0400000000000354 RSI: 0000000020000180 RDI: 0000000000000005 [ 48.605218] RBP: 00007f8fb877c05d R08: 0000000000000000 R09: 0000000000000000 [ 48.612470] R10: 000002873dedf99c R11: 0000000000000246 R12: 0000000000000000 [ 48.619834] R13: 00007ffcbcaca16f R14: 00007f8fb7e76300 R15: 0000000000022000 [ 48.627082] Code: 8b 4c 24 10 8b 8b 80 00 00 00 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 c0 b3 55 88 ff 74 24 10 ff 74 24 20 e8 04 6b e4 ff <0f> 0b e8 78 ac 36 fa 4c 8b 64 24 18 e8 2e 4e 60 fa 48 c7 c1 e0 [ 48.646151] RIP: skb_panic+0x172/0x174 RSP: ffff888094b7f1c8 [ 48.659664] ---[ end trace dc5eef7ff5beeb3f ]--- [ 48.664462] Kernel panic - not syncing: Fatal exception [ 48.669968] Kernel Offset: disabled [ 48.673577] Rebooting in 86400 seconds..