Warning: Permanently added '10.128.0.15' (ECDSA) to the list of known hosts. syzkaller login: [ 27.965868] IPVS: ftp: loaded support on port[0] = 21 [ 28.043941] chnl_net:caif_netlink_parms(): no params data found [ 28.112153] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.119522] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.127419] device bridge_slave_0 entered promiscuous mode [ 28.134530] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.140892] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.148335] device bridge_slave_1 entered promiscuous mode [ 28.163968] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 28.172687] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 28.189166] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 28.196442] team0: Port device team_slave_0 added [ 28.201853] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 28.209273] team0: Port device team_slave_1 added [ 28.224087] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 28.230586] 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. [ 28.256979] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 28.268520] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 28.275188] 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. [ 28.300819] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 28.315168] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 28.322374] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 28.340010] device hsr_slave_0 entered promiscuous mode [ 28.345623] device hsr_slave_1 entered promiscuous mode [ 28.351521] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 28.358667] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 28.413935] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.420313] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.427235] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.433650] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.460372] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 28.466849] 8021q: adding VLAN 0 to HW filter on device bond0 [ 28.475790] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 28.485211] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.494143] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.501070] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.511698] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 28.518073] 8021q: adding VLAN 0 to HW filter on device team0 [ 28.526730] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.534405] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.540737] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.559315] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 28.569675] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 28.581015] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 28.587816] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.595474] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.601890] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.609517] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 28.617362] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 28.625043] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.632694] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.640149] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 28.646981] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 28.657547] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 28.668608] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 28.675624] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 28.682892] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 28.731195] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 28.741577] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.770281] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 28.777812] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 28.784483] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 28.793348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.800689] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.808244] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.816467] device veth0_vlan entered promiscuous mode [ 28.824976] device veth1_vlan entered promiscuous mode [ 28.830720] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 28.839518] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 28.849686] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 28.859259] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 28.867055] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 28.874590] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.884372] device veth0_macvtap entered promiscuous mode [ 28.890326] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 28.898418] device veth1_macvtap entered promiscuous mode [ 28.907316] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 28.916328] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 28.926118] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 28.933108] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.940976] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 28.950385] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 28.957509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 29.032210] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 29.045054] device syz_tun entered promiscuous mode [ 29.050460] device batadv_slave_0 entered promiscuous mode [ 29.093264] kasan: CONFIG_KASAN_INLINE enabled [ 29.097943] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.107035] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 29.113264] Modules linked in: [ 29.116520] CPU: 1 PID: 8209 Comm: syz-executor406 Not tainted 4.14.300-syzkaller #0 [ 29.124373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 29.133880] task: ffff8880afe58240 task.stack: ffff8880afc28000 [ 29.139918] RIP: 0010:hsr_check_carrier_and_operstate+0x3f/0x710 [ 29.146217] RSP: 0018:ffff8880afc2f0d0 EFLAGS: 00010202 [ 29.151561] RAX: dffffc0000000000 RBX: ffff8880a1b585c0 RCX: 0000000000000001 [ 29.158803] RDX: 0000000000000002 RSI: 0000000000000004 RDI: ffff88809d672ca0 [ 29.166046] RBP: ffff888094b66cc0 R08: 0000000000000000 R09: 0000000000000001 [ 29.173288] R10: 0000000000000000 R11: ffff8880afe58240 R12: 0000000000000001 [ 29.180618] R13: ffff888094b66cc0 R14: 0000000000000000 R15: 0000000000000004 [ 29.187950] FS: 00007ff27a37d700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 29.196148] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.202005] CR2: 00007ff27a37d718 CR3: 00000000abafe000 CR4: 00000000003406e0 [ 29.209339] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.216679] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.223926] Call Trace: [ 29.226495] hsr_netdev_notify+0x201/0x8b0 [ 29.230822] notifier_call_chain+0x108/0x1a0 [ 29.235221] netdev_state_change+0xca/0xf0 [ 29.239438] ? netdev_upper_dev_unlink+0x200/0x200 [ 29.244701] do_setlink+0x2508/0x2bf0 [ 29.248481] ? rtnl_fdb_add+0x770/0x770 [ 29.252430] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 29.258397] ? unwind_next_frame+0xe54/0x17d0 [ 29.262873] ? __save_stack_trace+0x63/0x160 [ 29.267253] ? deref_stack_reg+0x124/0x1a0 [ 29.271457] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 29.277317] ? unwind_next_frame+0x404/0x17d0 [ 29.281789] ? do_syscall_64+0x1d5/0x640 [ 29.285832] ? validate_nla+0x192/0x5e0 [ 29.289786] ? nla_parse+0x157/0x1f0 [ 29.293575] ? validate_linkmsg+0x3a1/0x460 [ 29.297957] rtnl_newlink+0xc9d/0x1830 [ 29.301912] ? __lock_acquire+0x5fc/0x3f20 [ 29.306129] ? kasan_slab_free+0xc3/0x1a0 [ 29.310250] ? rtnl_dellink+0x6a0/0x6a0 [ 29.314201] ? trace_hardirqs_on+0x10/0x10 [ 29.318411] ? __dev_queue_xmit+0x1d7f/0x2480 [ 29.322971] ? netlink_deliver_tap+0x61b/0x860 [ 29.327527] ? netlink_unicast+0x485/0x610 [ 29.331751] ? netlink_sendmsg+0x600/0xbc0 [ 29.335988] ? sock_sendmsg+0xb5/0x100 [ 29.339941] ? ___sys_sendmsg+0x6c8/0x800 [ 29.344065] ? __sys_sendmsg+0xa3/0x120 [ 29.348021] ? __lock_acquire+0x5fc/0x3f20 [ 29.352237] ? lock_acquire+0x170/0x3f0 [ 29.356186] ? lock_downgrade+0x740/0x740 [ 29.360311] ? rtnl_dellink+0x6a0/0x6a0 [ 29.364259] rtnetlink_rcv_msg+0x3be/0xb10 [ 29.368472] ? rtnl_calcit.isra.0+0x3a0/0x3a0 [ 29.372976] ? __netlink_lookup+0x345/0x5d0 [ 29.377276] ? netdev_pick_tx+0x2e0/0x2e0 [ 29.381399] netlink_rcv_skb+0x125/0x390 [ 29.385449] ? rtnl_calcit.isra.0+0x3a0/0x3a0 [ 29.389942] ? netlink_ack+0x9a0/0x9a0 [ 29.393819] netlink_unicast+0x437/0x610 [ 29.397859] ? netlink_sendskb+0xd0/0xd0 [ 29.401901] ? __check_object_size+0x179/0x230 [ 29.406465] netlink_sendmsg+0x648/0xbc0 [ 29.410504] ? nlmsg_notify+0x1b0/0x1b0 [ 29.414454] ? kernel_recvmsg+0x210/0x210 [ 29.418576] ? security_socket_sendmsg+0x83/0xb0 [ 29.423303] ? nlmsg_notify+0x1b0/0x1b0 [ 29.427249] sock_sendmsg+0xb5/0x100 [ 29.430938] ___sys_sendmsg+0x6c8/0x800 [ 29.434890] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 29.439620] ? __fget+0x23e/0x3e0 [ 29.443048] ? lock_acquire+0x170/0x3f0 [ 29.447009] ? lock_downgrade+0x740/0x740 [ 29.451255] ? __fget+0x265/0x3e0 [ 29.454689] ? __fdget+0x19b/0x1f0 [ 29.458227] ? sockfd_lookup_light+0xb2/0x160 [ 29.462712] __sys_sendmsg+0xa3/0x120 [ 29.466492] ? SyS_shutdown+0x160/0x160 [ 29.470532] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 29.475524] ? _raw_spin_unlock_irq+0x5a/0x80 [ 29.480010] SyS_sendmsg+0x27/0x40 [ 29.483589] ? __sys_sendmsg+0x120/0x120 [ 29.487658] do_syscall_64+0x1d5/0x640 [ 29.491535] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 29.496707] Code: 59 fa be 04 00 00 00 48 89 ef e8 0d b0 ff ff 49 89 c6 48 83 c0 10 48 89 c2 48 89 04 24 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 67 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 [ 29.515873] RIP: hsr_check_carrier_and_operstate+0x3f/0x710 RSP: ffff8880afc2f0d0 [ 29.525386] ---[ end trace a73c399d470ba580 ]--- [ 29.530145] Kernel panic - not syncing: Fatal exception [ 29.535755] Kernel Offset: disabled [ 29.539370] Rebooting in 86400 seconds..