[ 18.395780][ T3636] 8021q: adding VLAN 0 to HW filter on device bond0 [ 18.400945][ T3636] eql: remember to turn off Van-Jacobson compression on your slave devices [ 18.443579][ T136] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 18.448348][ T1528] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.62' (ECDSA) to the list of known hosts. syzkaller login: [ 38.888149][ T3961] chnl_net:caif_netlink_parms(): no params data found [ 38.924945][ T3961] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.926665][ T3961] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.928785][ T3961] device bridge_slave_0 entered promiscuous mode [ 38.933640][ T3961] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.935276][ T3961] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.937425][ T3961] device bridge_slave_1 entered promiscuous mode [ 38.953097][ T3961] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 38.956848][ T3961] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 38.971736][ T3961] team0: Port device team_slave_0 added [ 38.974872][ T3961] team0: Port device team_slave_1 added [ 38.987151][ T3961] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.988655][ T3961] 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. [ 38.994451][ T3961] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.998878][ T3961] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 39.000682][ T3961] 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. [ 39.006348][ T3961] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 39.061806][ T3961] device hsr_slave_0 entered promiscuous mode [ 39.099791][ T3961] device hsr_slave_1 entered promiscuous mode [ 39.212253][ T3961] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 39.252423][ T3961] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 39.301936][ T3961] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 39.352672][ T3961] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 39.417142][ T3961] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.418777][ T3961] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.420751][ T3961] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.422487][ T3961] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.463530][ T3961] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.470196][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.473810][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.476554][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.480424][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 39.487882][ T3961] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.493951][ T1528] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.496091][ T1528] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.497663][ T1528] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.504026][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.505975][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.507443][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.522157][ T1528] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.526903][ T1528] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 39.529119][ T1528] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.534689][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.541206][ T3970] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.546585][ T3961] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 39.558075][ T3549] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 39.560095][ T3549] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 39.566650][ T3961] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.579865][ T1528] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.592463][ T3549] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.594657][ T3549] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 39.596615][ T3549] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 39.601008][ T3961] device veth0_vlan entered promiscuous mode [ 39.606680][ T3961] device veth1_vlan entered promiscuous mode [ 39.621541][ T3970] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 39.623585][ T3970] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 39.625882][ T3970] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.630380][ T3961] device veth0_macvtap entered promiscuous mode [ 39.634369][ T3961] device veth1_macvtap entered promiscuous mode [ 39.645533][ T3961] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 39.647209][ T3549] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 39.651367][ T3549] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 39.655991][ T3961] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 39.661221][ T3961] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.663202][ T3961] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.665187][ T3961] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.667043][ T3961] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.670258][ T3970] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 39.699180][ T3961] ------------[ cut here ]------------ [ 39.700535][ T3961] WARNING: CPU: 0 PID: 3961 at net/core/dev.c:3249 skb_checksum_help+0x33c/0x4a0 [ 39.702553][ T3961] Modules linked in: [ 39.703474][ T3961] CPU: 0 PID: 3961 Comm: syz-executor238 Not tainted 5.15.115-syzkaller #0 [ 39.705328][ T3961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 39.707456][ T3961] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 39.709164][ T3961] pc : skb_checksum_help+0x33c/0x4a0 [ 39.710220][ T3961] lr : skb_checksum_help+0x338/0x4a0 [ 39.711313][ T3961] sp : ffff80001cb46b00 [ 39.712269][ T3961] x29: ffff80001cb46b20 x28: 0000000000000586 x27: 000000000000061f [ 39.714000][ T3961] x26: dfff800000000000 x25: 0000000000000621 x24: 0000000000005653 [ 39.715784][ T3961] x23: 0000000000000586 x22: ffff0000c8989350 x21: 0000000000000519 [ 39.717427][ T3961] x20: 00000000ffffffea x19: ffff0000c8989300 x18: 0000000000000200 [ 39.719130][ T3961] x17: ff8080000fd25888 x16: ffff8000084c3554 x15: 0000000000000000 [ 39.720802][ T3961] x14: 0000000000000000 x13: ffffffffffffffff x12: 0000000000000000 [ 39.722562][ T3961] x11: ff8080000fd84588 x10: 0000000000000000 x9 : ffff80000fd84588 [ 39.724266][ T3961] x8 : ffff0000c8653680 x7 : ffff80000fd3724c x6 : ffff80000fd37204 [ 39.726116][ T3961] x5 : ffff80001cb46a90 x4 : ffff80001cb46a80 x3 : 000000000000006d [ 39.727893][ T3961] x2 : 00000000000004fa x1 : 0000000000000519 x0 : 0000000000000621 [ 39.729736][ T3961] Call trace: [ 39.730537][ T3961] skb_checksum_help+0x33c/0x4a0 [ 39.731598][ T3961] ip_do_fragment+0x198/0x199c [ 39.732681][ T3961] ip_fragment+0x11c/0x308 [ 39.733646][ T3961] __ip_finish_output+0x280/0x458 [ 39.734795][ T3961] ip_finish_output+0x40/0x218 [ 39.735876][ T3961] ip_output+0x330/0x49c [ 39.736854][ T3961] ip_local_out+0x120/0x160 [ 39.737831][ T3961] iptunnel_xmit+0x404/0x850 [ 39.738903][ T3961] ip_tunnel_xmit+0x180c/0x200c [ 39.740023][ T3961] ipgre_xmit+0x5dc/0x8d8 [ 39.740976][ T3961] dev_hard_start_xmit+0x2bc/0x92c [ 39.742159][ T3961] __dev_queue_xmit+0x13a8/0x2a6c [ 39.743306][ T3961] dev_queue_xmit+0x24/0x34 [ 39.744313][ T3961] packet_sendmsg+0x3654/0x4c68 [ 39.745421][ T3961] ____sys_sendmsg+0x584/0x870 [ 39.746474][ T3961] ___sys_sendmsg+0x214/0x294 [ 39.747456][ T3961] __arm64_sys_sendmsg+0x1ac/0x25c [ 39.748647][ T3961] invoke_syscall+0x98/0x2b8 [ 39.749584][ T3961] el0_svc_common+0x138/0x258 [ 39.750619][ T3961] do_el0_svc+0x58/0x14c [ 39.751513][ T3961] el0_svc+0x7c/0x1f0 [ 39.752369][ T3961] el0t_64_sync_handler+0x84/0xe4 [ 39.753443][ T3961] el0t_64_sync+0x1a0/0x1a4 [ 39.754367][ T3961] irq event stamp: 127135 [ 39.755264][ T3961] hardirqs last enabled at (127134): [] kasan_quarantine_put+0xdc/0x204 [ 39.757464][ T3961] hardirqs last disabled at (127135): [] el1_dbg+0x24/0x80 [ 39.759353][ T3961] softirqs last enabled at (126766): [] release_sock+0x1e4/0x270 [ 39.761382][ T3961] softirqs last disabled at (126802): [] local_bh_disable+0x10/0x34 [ 39.763352][ T3961] ---[ end trace a14e41e7762f3c64 ]---