Warning: Permanently added '10.128.0.32' (ECDSA) to the list of known hosts. syzkaller login: [ 48.077298] IPVS: ftp: loaded support on port[0] = 21 [ 48.211771] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.219014] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.226069] device bridge_slave_0 entered promiscuous mode [ 48.242986] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.249684] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.256625] device bridge_slave_1 entered promiscuous mode [ 48.271696] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 48.287795] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 48.328795] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.347112] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.407836] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.415198] team0: Port device team_slave_0 added [ 48.429769] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.436901] team0: Port device team_slave_1 added [ 48.451235] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.468639] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.485712] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.503385] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 48.621135] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.627762] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.634892] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.641219] bridge0: port 1(bridge_slave_0) entered forwarding state RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument [ 49.054476] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 49.060673] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.103945] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.147041] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.155550] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.197813] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 49.428393] Started in network mode [ 49.433060] Own node identity ac14141a, cluster identity 4711 [ 49.439179] kasan: CONFIG_KASAN_INLINE enabled [ 49.443941] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 49.451664] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 49.457881] CPU: 1 PID: 5919 Comm: syz-executor760 Not tainted 4.20.0-rc6+ #150 [ 49.465303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.474649] RIP: 0010:__ipv6_sock_mc_join+0x24a/0xc10 [ 49.479902] Code: 00 00 e8 a9 31 9b fa 48 8b 85 d0 fe ff ff 48 83 c0 60 48 89 c2 48 89 85 c0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 32 09 00 00 48 8b 85 d0 fe ff ff 4c 8d ad 10 ff [ 49.499037] RSP: 0018:ffff8881c0f26bc8 EFLAGS: 00010206 [ 49.504959] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff86e459ac [ 49.512486] RDX: 000000000000000c RSI: ffffffff86e452c7 RDI: 0000000000000001 [ 49.519980] RBP: ffff8881c0f26d18 R08: ffff8881c169e300 R09: ffffed103b5e5b5f [ 49.527617] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 000000000000000f [ 49.534866] R13: ffff8881c0f26fb4 R14: ffff8881c0f26fb4 R15: ffff8881b24c1540 [ 49.542115] FS: 00000000009ea880(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 [ 49.550403] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.556418] CR2: 0000000020000080 CR3: 00000001b3055000 CR4: 00000000001406e0 [ 49.563668] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.571025] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.578373] Call Trace: [ 49.580986] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.586509] ? __ipv6_dev_mc_inc+0xc50/0xc50 [ 49.590907] ? cpus_read_unlock+0x8b/0xb0 [ 49.595037] ? static_key_enable+0x1f/0x30 [ 49.599256] ? udp_encap_enable+0x15/0x20 [ 49.603429] ? setup_udp_tunnel_sock+0x3ac/0x5e0 [ 49.608163] ? udp_tunnel_xmit_skb+0x320/0x320 [ 49.612788] ipv6_sock_mc_join+0x27/0x30 [ 49.616835] tipc_udp_enable+0x1476/0x1ed0 [ 49.621171] ? tipc_udp_recv+0xe20/0xe20 [ 49.625230] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 49.630307] ? tipc_udp_send_msg+0x670/0x670 [ 49.634692] ? save_stack+0xa9/0xd0 [ 49.638637] ? save_stack+0x43/0xd0 [ 49.642473] ? kasan_kmalloc+0xc7/0xe0 [ 49.646346] ? kmem_cache_alloc_trace+0x152/0x750 [ 49.651163] ? tipc_enable_bearer+0x90d/0xf10 [ 49.655763] ? __tipc_nl_bearer_enable+0x37c/0x4a0 [ 49.660897] ? tipc_nl_bearer_enable+0x22/0x30 [ 49.665468] ? genl_rcv_msg+0xc6/0x168 [ 49.669360] ? netlink_rcv_skb+0x172/0x440 [ 49.673604] ? genl_rcv+0x28/0x40 [ 49.677035] ? netlink_unicast+0x5a5/0x760 [ 49.681245] ? netlink_sendmsg+0xa18/0xfc0 [ 49.685457] ? sock_sendmsg+0xd5/0x120 [ 49.689319] ? ___sys_sendmsg+0x7fd/0x930 [ 49.693543] ? __x64_sys_sendmsg+0x78/0xb0 [ 49.697755] ? do_syscall_64+0x1b9/0x820 [ 49.701918] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.707262] ? mark_held_locks+0x130/0x130 [ 49.711473] ? zap_class+0x640/0x640 [ 49.715165] ? check_preemption_disabled+0x48/0x280 [ 49.720169] ? tipc_enable_bearer+0x90d/0xf10 [ 49.724647] ? rcu_read_lock_sched_held+0x14f/0x180 [ 49.729652] tipc_enable_bearer+0x9a6/0xf10 [ 49.734096] ? tipc_udp_recv+0xe20/0xe20 [ 49.738142] ? tipc_enable_bearer+0x9a6/0xf10 [ 49.742901] ? tipc_bearer_xmit_skb+0x350/0x350 [ 49.747660] ? nla_memcmp+0x90/0x90 [ 49.751281] ? lock_release+0xa00/0xa00 [ 49.755230] ? perf_trace_sched_process_exec+0x860/0x860 [ 49.760812] ? mark_held_locks+0x130/0x130 [ 49.765033] ? check_preemption_disabled+0x48/0x280 [ 49.770166] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.775691] ? __nla_parse+0x12c/0x3e0 [ 49.779559] ? nla_parse+0x46/0x60 [ 49.783075] __tipc_nl_bearer_enable+0x37c/0x4a0 [ 49.787832] ? __tipc_nl_bearer_enable+0x37c/0x4a0 [ 49.792742] ? tipc_nl_bearer_disable+0x30/0x30 [ 49.797390] tipc_nl_bearer_enable+0x22/0x30 [ 49.801828] genl_family_rcv_msg+0x8a7/0x11a0 [ 49.806307] ? genl_unregister_family+0x8a0/0x8a0 [ 49.811124] ? lock_downgrade+0x900/0x900 [ 49.815249] ? check_preemption_disabled+0x48/0x280 [ 49.820357] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 49.825271] ? kasan_check_read+0x11/0x20 [ 49.829623] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 49.835011] ? rcu_softirq_qs+0x20/0x20 [ 49.839106] genl_rcv_msg+0xc6/0x168 [ 49.842921] netlink_rcv_skb+0x172/0x440 [ 49.847119] ? genl_family_rcv_msg+0x11a0/0x11a0 [ 49.851859] ? netlink_ack+0xb80/0xb80 [ 49.855727] ? down_read+0x8d/0x120 [ 49.859329] genl_rcv+0x28/0x40 [ 49.862583] netlink_unicast+0x5a5/0x760 [ 49.866621] ? netlink_attachskb+0x9a0/0x9a0 [ 49.871288] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.876952] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 49.881948] netlink_sendmsg+0xa18/0xfc0 [ 49.885985] ? netlink_unicast+0x760/0x760 [ 49.890201] ? smack_socket_sendmsg+0xb0/0x190 [ 49.894766] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.900289] ? security_socket_sendmsg+0x94/0xc0 [ 49.905022] ? netlink_unicast+0x760/0x760 [ 49.909427] sock_sendmsg+0xd5/0x120 [ 49.913121] ___sys_sendmsg+0x7fd/0x930 [ 49.917084] ? copy_msghdr_from_user+0x580/0x580 [ 49.921817] ? mnt_get_count+0x150/0x150 [ 49.926109] ? dentry_kill+0xce/0x680 [ 49.929908] ? blkcg_maybe_throttle_current+0xa38/0x1080 [ 49.935437] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.940949] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.946468] ? __fget_light+0x2e9/0x430 [ 49.950419] ? fget_raw+0x20/0x20 [ 49.953860] ? task_work_run+0x1af/0x2a0 [ 49.957898] ? _raw_spin_unlock_irq+0x27/0x80 [ 49.962368] ? _raw_spin_unlock_irq+0x27/0x80 [ 49.966987] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 49.971725] ? trace_hardirqs_on+0xbd/0x310 [ 49.976025] ? kasan_check_read+0x11/0x20 [ 49.980152] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.985790] ? sockfd_lookup_light+0xc5/0x160 [ 49.990261] __sys_sendmsg+0x11d/0x280 [ 49.994126] ? __ia32_sys_shutdown+0x80/0x80 [ 49.998628] ? do_syscall_64+0x6be/0x820 [ 50.002798] ? trace_hardirqs_on+0x310/0x310 [ 50.007420] ? do_syscall_64+0x9a/0x820 [ 50.011374] ? do_syscall_64+0x9a/0x820 [ 50.015326] ? trace_hardirqs_off_caller+0x310/0x310 [ 50.020416] __x64_sys_sendmsg+0x78/0xb0 [ 50.024504] do_syscall_64+0x1b9/0x820 [ 50.028382] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 50.033727] ? syscall_return_slowpath+0x5e0/0x5e0 [ 50.038634] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.043455] ? trace_hardirqs_on_caller+0x310/0x310 [ 50.048450] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 50.053449] ? prepare_exit_to_usermode+0x291/0x3b0 [ 50.058603] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.063587] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.068752] RIP: 0033:0x445c49 [ 50.071932] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 fb ce fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 50.090958] RSP: 002b:00007ffcd8b33a48 EFLAGS: 00000213 ORIG_RAX: 000000000000002e [ 50.098645] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000445c49 [ 50.105894] RDX: 000000000000c000 RSI: 0000000020000c00 RDI: 0000000000000003 [ 50.113229] RBP: 00000000006d1018 R08: 0000000000000000 R09: 0000000000000100 [ 50.120622] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000402fd0 [ 50.127926] R13: 0000000000403060 R14: 0000000000000000 R15: 0000000000000000 [ 50.135386] Modules linked in: [ 50.139604] ---[ end trace a03a7cb55ea55d77 ]--- [ 50.144378] RIP: 0010:__ipv6_sock_mc_join+0x24a/0xc10 [ 50.149599] Code: 00 00 e8 a9 31 9b fa 48 8b 85 d0 fe ff ff 48 83 c0 60 48 89 c2 48 89 85 c0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 32 09 00 00 48 8b 85 d0 fe ff ff 4c 8d ad 10 ff [ 50.168810] RSP: 0018:ffff8881c0f26bc8 EFLAGS: 00010206 [ 50.174338] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff86e459ac [ 50.181728] RDX: 000000000000000c RSI: ffffffff86e452c7 RDI: 0000000000000001 [ 50.189079] RBP: ffff8881c0f26d18 R08: ffff8881c169e300 R09: ffffed103b5e5b5f [ 50.196368] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 000000000000000f [ 50.203844] R13: ffff8881c0f26fb4 R14: ffff8881c0f26fb4 R15: ffff8881b24c1540 [ 50.211267] FS: 00000000009ea880(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 [ 50.219503] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.225384] CR2: 0000000020000080 CR3: 00000001b3055000 CR4: 00000000001406e0 [ 50.232724] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.240206] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.247509] Kernel panic - not syncing: Fatal exception [ 50.253983] Kernel Offset: disabled [ 50.257605] Rebooting in 86400 seconds..