Warning: Permanently added '10.128.0.83' (ECDSA) to the list of known hosts. syzkaller login: [ 43.756005][ T3961] chnl_net:caif_netlink_parms(): no params data found [ 43.794683][ T3961] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.796586][ T3961] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.800040][ T3961] device bridge_slave_0 entered promiscuous mode [ 43.804333][ T3961] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.806229][ T3961] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.808689][ T3961] device bridge_slave_1 entered promiscuous mode [ 43.824232][ T3961] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 43.828559][ T3961] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 43.844458][ T3961] team0: Port device team_slave_0 added [ 43.847738][ T3961] team0: Port device team_slave_1 added [ 43.861438][ T3961] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 43.863119][ 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. [ 43.869829][ T3961] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 43.874448][ T3961] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 43.876141][ 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. [ 43.882315][ T3961] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 43.981744][ T3961] device hsr_slave_0 entered promiscuous mode [ 44.039805][ T3961] device hsr_slave_1 entered promiscuous mode [ 44.154219][ T3961] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 44.201738][ T3961] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 44.242376][ T3961] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 44.292347][ T3961] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 44.367774][ T3961] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.369544][ T3961] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.371818][ T3961] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.373553][ T3961] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.415067][ T3961] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.425021][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.428877][ T21] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.432043][ T21] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.434881][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 44.442335][ T3961] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.451636][ T3967] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.454195][ T3967] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.455991][ T3967] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.458123][ T3967] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.460859][ T3967] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.462658][ T3967] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.483507][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.486160][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.488598][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.491016][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.493443][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 44.498221][ T3961] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 44.514655][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 44.516609][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 44.525235][ T3961] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 44.538016][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 44.554020][ T3961] device veth0_vlan entered promiscuous mode [ 44.559751][ T3961] device veth1_vlan entered promiscuous mode [ 44.562251][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 44.564747][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 44.567032][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 44.569234][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 44.588143][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 44.591406][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 44.595891][ T3961] device veth0_macvtap entered promiscuous mode [ 44.602102][ T3961] device veth1_macvtap entered promiscuous mode [ 44.613602][ T3961] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 44.615626][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 44.618663][ T21] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 44.624327][ T3961] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 44.627119][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 44.632517][ T3961] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 44.634738][ T3961] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 44.636738][ T3961] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 44.638858][ T3961] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 44.667525][ T3961] ------------[ cut here ]------------ [ 44.668985][ T3961] WARNING: CPU: 1 PID: 3961 at net/core/dev.c:3249 skb_checksum_help+0x33c/0x4a0 [ 44.671219][ T3961] Modules linked in: [ 44.672059][ T3961] CPU: 1 PID: 3961 Comm: syz-executor669 Not tainted 5.15.115-syzkaller #0 [ 44.674082][ T3961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 44.676399][ T3961] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 44.678173][ T3961] pc : skb_checksum_help+0x33c/0x4a0 [ 44.679448][ T3961] lr : skb_checksum_help+0x338/0x4a0 [ 44.680711][ T3961] sp : ffff80001cf16b00 [ 44.681712][ T3961] x29: ffff80001cf16b20 x28: 0000000000000586 x27: 000000000000061f [ 44.683471][ T3961] x26: dfff800000000000 x25: 0000000000000621 x24: 0000000000005653 [ 44.685300][ T3961] x23: 0000000000000586 x22: ffff0000ca9e5e90 x21: 0000000000000519 [ 44.687135][ T3961] x20: 00000000ffffffea x19: ffff0000ca9e5e40 x18: 0000000000000200 [ 44.689061][ T3961] x17: ff8080000fd25888 x16: ffff8000084c3554 x15: 0000000000000000 [ 44.690858][ T3961] x14: 0000000000000000 x13: ffffffffffffffff x12: 0000000000000000 [ 44.692681][ T3961] x11: ff8080000fd84588 x10: 0000000000000000 x9 : ffff80000fd84588 [ 44.694585][ T3961] x8 : ffff0000db1e0000 x7 : ffff80000fd3724c x6 : ffff80000fd37204 [ 44.696421][ T3961] x5 : ffff80001cf16a90 x4 : ffff80001cf16a80 x3 : 000000000000006d [ 44.698231][ T3961] x2 : 00000000000004fa x1 : 0000000000000519 x0 : 0000000000000621 [ 44.700090][ T3961] Call trace: [ 44.700810][ T3961] skb_checksum_help+0x33c/0x4a0 [ 44.701969][ T3961] ip_do_fragment+0x198/0x199c [ 44.703055][ T3961] ip_fragment+0x11c/0x308 [ 44.704102][ T3961] __ip_finish_output+0x280/0x458 [ 44.705254][ T3961] ip_finish_output+0x40/0x218 [ 44.706365][ T3961] ip_output+0x330/0x49c [ 44.707257][ T3961] ip_local_out+0x120/0x160 [ 44.708327][ T3961] iptunnel_xmit+0x404/0x850 [ 44.709374][ T3961] ip_tunnel_xmit+0x180c/0x200c [ 44.710462][ T3961] ipgre_xmit+0x5dc/0x8d8 [ 44.711516][ T3961] dev_hard_start_xmit+0x2bc/0x92c [ 44.712681][ T3961] __dev_queue_xmit+0x13a8/0x2a6c [ 44.713838][ T3961] dev_queue_xmit+0x24/0x34 [ 44.714848][ T3961] packet_sendmsg+0x3654/0x4c68 [ 44.715991][ T3961] ____sys_sendmsg+0x584/0x870 [ 44.717149][ T3961] ___sys_sendmsg+0x214/0x294 [ 44.718294][ T3961] __arm64_sys_sendmsg+0x1ac/0x25c [ 44.719522][ T3961] invoke_syscall+0x98/0x2b8 [ 44.720622][ T3961] el0_svc_common+0x138/0x258 [ 44.721732][ T3961] do_el0_svc+0x58/0x14c [ 44.722794][ T3961] el0_svc+0x7c/0x1f0 [ 44.723725][ T3961] el0t_64_sync_handler+0x84/0xe4 [ 44.724874][ T3961] el0t_64_sync+0x1a0/0x1a4 [ 44.725941][ T3961] irq event stamp: 126009 [ 44.726891][ T3961] hardirqs last enabled at (126008): [] kasan_quarantine_put+0xdc/0x204 [ 44.729208][ T3961] hardirqs last disabled at (126009): [] el1_dbg+0x24/0x80 [ 44.731205][ T3961] softirqs last enabled at (125626): [] release_sock+0x1e4/0x270 [ 44.733217][ T3961] softirqs last disabled at (125662): [] local_bh_disable+0x10/0x34 [ 44.735367][ T3961] ---[ end trace 59b6a23707ffd769 ]---