[ 14.860010][ T5644] 8021q: adding VLAN 0 to HW filter on device bond0 [ 14.864298][ T5644] eql: remember to turn off Van-Jacobson compression on your slave devices [ 14.912944][ T539] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 14.918840][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.143' (ECDSA) to the list of known hosts. syzkaller login: [ 34.686744][ T5969] chnl_net:caif_netlink_parms(): no params data found [ 34.715004][ T5969] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.716625][ T5969] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.718367][ T5969] bridge_slave_0: entered allmulticast mode [ 34.720130][ T5969] bridge_slave_0: entered promiscuous mode [ 34.723466][ T5969] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.724991][ T5969] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.726548][ T5969] bridge_slave_1: entered allmulticast mode [ 34.728239][ T5969] bridge_slave_1: entered promiscuous mode [ 34.740477][ T5969] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 34.743957][ T5969] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 34.755119][ T5969] team0: Port device team_slave_0 added [ 34.758268][ T5969] team0: Port device team_slave_1 added [ 34.768052][ T5969] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 34.769522][ T5969] 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. [ 34.775274][ T5969] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 34.779046][ T5969] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 34.780521][ T5969] 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. [ 34.786215][ T5969] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 34.853284][ T5969] hsr_slave_0: entered promiscuous mode [ 34.891789][ T5969] hsr_slave_1: entered promiscuous mode [ 35.007570][ T5969] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 35.053685][ T5969] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 35.104090][ T5969] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 35.143187][ T5969] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 35.196192][ T5969] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.197727][ T5969] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.199586][ T5969] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.201200][ T5969] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.230812][ T5969] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.238565][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 35.242082][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 35.244734][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 35.246979][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 35.252860][ T5969] 8021q: adding VLAN 0 to HW filter on device team0 [ 35.258032][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 35.260018][ T24] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.261571][ T24] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.267225][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 35.269356][ T24] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.270816][ T24] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.280839][ T5979] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 35.283287][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 35.287903][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 35.295113][ T5979] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 35.297026][ T5979] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 35.300669][ T5969] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 35.310504][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 35.312175][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 35.317293][ T5969] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 35.328386][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 35.340081][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 35.343255][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 35.345029][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 35.347937][ T5969] veth0_vlan: entered promiscuous mode [ 35.352825][ T5969] veth1_vlan: entered promiscuous mode [ 35.362829][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 35.364765][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 35.366898][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 35.370730][ T5969] veth0_macvtap: entered promiscuous mode [ 35.375636][ T5969] veth1_macvtap: entered promiscuous mode [ 35.385691][ T5969] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 35.387386][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 35.390159][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 35.394223][ T5969] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 35.397259][ T5969] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 35.399030][ T5969] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 35.400860][ T5969] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 35.404403][ T5969] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 35.407259][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 35.434874][ T5969] ------------[ cut here ]------------ [ 35.436031][ T5969] WARNING: CPU: 1 PID: 5969 at net/core/dev.c:3268 skb_checksum_help+0x344/0x4f0 [ 35.437821][ T5969] Modules linked in: [ 35.438640][ T5969] CPU: 1 PID: 5969 Comm: syz-executor199 Not tainted 6.4.0-rc4-syzkaller-g3bb1a3e1674b #0 [ 35.440644][ T5969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 35.442677][ T5969] pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 35.444294][ T5969] pc : skb_checksum_help+0x344/0x4f0 [ 35.445487][ T5969] lr : skb_checksum_help+0x230/0x4f0 [ 35.446608][ T5969] sp : ffff800096e76ae0 [ 35.447504][ T5969] x29: ffff800096e76b00 x28: 0000000000000586 x27: 000000000000061f [ 35.449157][ T5969] x26: dfff800000000000 x25: 0000000000000621 x24: 0000000000005653 [ 35.450888][ T5969] x23: 0000000000000586 x22: ffff0000dbf31718 x21: 0000000000000519 [ 35.452646][ T5969] x20: ffff0000dbf31640 x19: ffff800090b04000 x18: ffff0001b4260028 [ 35.454270][ T5969] x17: ffff800088df7210 x16: ffff80008050ac30 x15: 0000000000000000 [ 35.455949][ T5969] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 35.457648][ T5969] x11: 0000000000000200 x10: 0000000000000000 x9 : 0000000000000000 [ 35.459318][ T5969] x8 : ffff0000c40e8000 x7 : ffff80008864bb44 x6 : ffff80008864bafc [ 35.461035][ T5969] x5 : ffff800096e76a70 x4 : ffff800096e76a60 x3 : 000000000000006d [ 35.462663][ T5969] x2 : 00000000000004fa x1 : 0000000000000519 x0 : 0000000000000621 [ 35.464322][ T5969] Call trace: [ 35.465006][ T5969] skb_checksum_help+0x344/0x4f0 [ 35.466028][ T5969] ip_do_fragment+0x1cc/0x1b38 [ 35.466998][ T5969] ip_fragment+0x11c/0x304 [ 35.467950][ T5969] __ip_finish_output+0x280/0x458 [ 35.469041][ T5969] ip_finish_output+0x40/0x268 [ 35.470012][ T5969] ip_output+0x330/0x49c [ 35.470901][ T5969] ip_local_out+0x120/0x160 [ 35.471836][ T5969] iptunnel_xmit+0x424/0x8dc [ 35.472813][ T5969] ip_tunnel_xmit+0x16ac/0x2634 [ 35.473858][ T5969] ipgre_xmit+0x5d4/0x8e0 [ 35.474791][ T5969] dev_hard_start_xmit+0x240/0x8ac [ 35.475851][ T5969] __dev_queue_xmit+0x167c/0x3318 [ 35.476900][ T5969] packet_xmit+0x6c/0x318 [ 35.477801][ T5969] packet_sendmsg+0x376c/0x4c98 [ 35.478844][ T5969] ____sys_sendmsg+0x568/0x81c [ 35.479775][ T5969] __sys_sendmsg+0x26c/0x33c [ 35.480740][ T5969] __arm64_sys_sendmsg+0x80/0x94 [ 35.481769][ T5969] invoke_syscall+0x98/0x2c0 [ 35.482752][ T5969] el0_svc_common+0x138/0x244 [ 35.483765][ T5969] do_el0_svc+0x64/0x198 [ 35.484675][ T5969] el0_svc+0x4c/0x160 [ 35.485537][ T5969] el0t_64_sync_handler+0x84/0xfc [ 35.486610][ T5969] el0t_64_sync+0x190/0x194 [ 35.487612][ T5969] irq event stamp: 130801 [ 35.488517][ T5969] hardirqs last enabled at (130800): [] kasan_quarantine_put+0x1a0/0x1c8 [ 35.490713][ T5969] hardirqs last disabled at (130801): [] el1_dbg+0x24/0x80 [ 35.492496][ T5969] softirqs last enabled at (130448): [] release_sock+0x15c/0x1b0 [ 35.494491][ T5969] softirqs last disabled at (130482): [] local_bh_disable+0x10/0x34 [ 35.496496][ T5969] ---[ end trace 0000000000000000 ]--- [ 35.497675][ T5969] skb len=1414 headroom=168 headlen=1305 tailroom=0 [ 35.497675][ T5969] mac=(168,0) net=(168,20) trans=188 [ 35.497675][ T5969] shinfo(txflags=0 nr_frags=1 gso(size=0 type=0 segs=0)) [ 35.497675][ T5969] csum(0x60000c7 ip_summed=3 complete_sw=0 valid=0 level=0) [ 35.497675][ T5969] hash(0x0 sw=0 l4=0) proto=0x0800 pkttype=0 iif=0 [ 35.504326][ T5969] dev name=veth1_to_team feat=0x000061164fdd19e9 [ 35.505662][ T5969] sk family=17 type=3 proto=0 [ 35.506601][ T5969] skb linear: 00000000: 45 02 05 86 6f 5e 00 00 0f 2f a1 73 ac 14 14 20 [ 35.508356][ T5969] skb linear: 00000010: ef 06 e6 3a 00 00 08 00 bd 0f 05 6e 10 89 0c 52 [ 35.510076][ T5969] skb linear: 00000020: 0f 06 2c 69 fd fe 4b 88 94 30 5a f7 9f 6b 4c 11 [ 35.511906][ T5969] skb linear: 00000030: 95 10 da 9f e3 c0 63 76 c3 30 76 a1 67 d5 02 61 [ 35.513578][ T5969] skb linear: 00000040: a6 7a d2 9b 30 8c de 52 1a a0 c3 85 c7 3f ed 0c [ 35.515278][ T5969] skb linear: 00000050: 3a c8 16 89 86 6e 16 bd bd 00 00 00 d5 8f 00 00 [ 35.517086][ T5969] skb linear: 00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.518879][ T5969] skb linear: 00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.520603][ T5969] skb linear: 00000080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.522388][ T5969] skb linear: 00000090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.524040][ T5969] skb linear: 000000a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.525873][ T5969] skb linear: 000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.527592][ T5969] skb linear: 000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.529335][ T5969] skb linear: 000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.531141][ T5969] skb linear: 000000e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.532934][ T5969] skb linear: 000000f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.534683][ T5969] skb linear: 00000100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.536639][ T5969] skb linear: 00000110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.538494][ T5969] skb linear: 00000120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00