netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5969 at net/core/dev.c:3268 skb_checksum_help+0x344/0x4f0 net/core/dev.c:3269 Modules linked in: CPU: 1 PID: 5969 Comm: syz-executor199 Not tainted 6.4.0-rc4-syzkaller-g3bb1a3e1674b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : skb_checksum_help+0x344/0x4f0 net/core/dev.c:3269 lr : skb_checksum_help+0x230/0x4f0 net/core/dev.c:3268 sp : ffff800096e76ae0 x29: ffff800096e76b00 x28: 0000000000000586 x27: 000000000000061f x26: dfff800000000000 x25: 0000000000000621 x24: 0000000000005653 x23: 0000000000000586 x22: ffff0000dbf31718 x21: 0000000000000519 x20: ffff0000dbf31640 x19: ffff800090b04000 x18: ffff0001b4260028 x17: ffff800088df7210 x16: ffff80008050ac30 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000200 x10: 0000000000000000 x9 : 0000000000000000 x8 : ffff0000c40e8000 x7 : ffff80008864bb44 x6 : ffff80008864bafc x5 : ffff800096e76a70 x4 : ffff800096e76a60 x3 : 000000000000006d x2 : 00000000000004fa x1 : 0000000000000519 x0 : 0000000000000621 Call trace: skb_checksum_help+0x344/0x4f0 net/core/dev.c:3269 ip_do_fragment+0x1cc/0x1b38 net/ipv4/ip_output.c:775 ip_fragment+0x11c/0x304 ip_finish_output_gso net/ipv4/ip_output.c:280 [inline] __ip_finish_output+0x280/0x458 net/ipv4/ip_output.c:302 ip_finish_output+0x40/0x268 net/ipv4/ip_output.c:317 NF_HOOK_COND include/linux/netfilter.h:292 [inline] ip_output+0x330/0x49c net/ipv4/ip_output.c:431 dst_output include/net/dst.h:458 [inline] ip_local_out+0x120/0x160 net/ipv4/ip_output.c:126 iptunnel_xmit+0x424/0x8dc net/ipv4/ip_tunnel_core.c:82 ip_tunnel_xmit+0x16ac/0x2634 net/ipv4/ip_tunnel.c:831 __gre_xmit net/ipv4/ip_gre.c:469 [inline] ipgre_xmit+0x5d4/0x8e0 net/ipv4/ip_gre.c:661 __netdev_start_xmit include/linux/netdevice.h:4915 [inline] netdev_start_xmit include/linux/netdevice.h:4929 [inline] xmit_one net/core/dev.c:3578 [inline] dev_hard_start_xmit+0x240/0x8ac net/core/dev.c:3594 __dev_queue_xmit+0x167c/0x3318 net/core/dev.c:4244 dev_queue_xmit include/linux/netdevice.h:3085 [inline] packet_xmit+0x6c/0x318 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3081 [inline] packet_sendmsg+0x376c/0x4c98 net/packet/af_packet.c:3113 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg net/socket.c:747 [inline] ____sys_sendmsg+0x568/0x81c net/socket.c:2503 ___sys_sendmsg net/socket.c:2557 [inline] __sys_sendmsg+0x26c/0x33c net/socket.c:2586 __do_sys_sendmsg net/socket.c:2595 [inline] __se_sys_sendmsg net/socket.c:2593 [inline] __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2593 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 irq event stamp: 130801 hardirqs last enabled at (130800): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:240 hardirqs last disabled at (130801): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:407 softirqs last enabled at (130448): [] spin_unlock_bh include/linux/spinlock.h:395 [inline] softirqs last enabled at (130448): [] release_sock+0x15c/0x1b0 net/core/sock.c:3495 softirqs last disabled at (130482): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- skb len=1414 headroom=168 headlen=1305 tailroom=0 mac=(168,0) net=(168,20) trans=188 shinfo(txflags=0 nr_frags=1 gso(size=0 type=0 segs=0)) csum(0x60000c7 ip_summed=3 complete_sw=0 valid=0 level=0) hash(0x0 sw=0 l4=0) proto=0x0800 pkttype=0 iif=0 dev name=veth1_to_team feat=0x000061164fdd19e9 sk family=17 type=3 proto=0 skb linear: 00000000: 45 02 05 86 6f 5e 00 00 0f 2f a1 73 ac 14 14 20 skb linear: 00000010: ef 06 e6 3a 00 00 08 00 bd 0f 05 6e 10 89 0c 52 skb linear: 00000020: 0f 06 2c 69 fd fe 4b 88 94 30 5a f7 9f 6b 4c 11 skb linear: 00000030: 95 10 da 9f e3 c0 63 76 c3 30 76 a1 67 d5 02 61 skb linear: 00000040: a6 7a d2 9b 30 8c de 52 1a a0 c3 85 c7 3f ed 0c skb linear: 00000050: 3a c8 16 89 86 6e 16 bd bd 00 00 00 d5 8f 00 00 skb linear: 00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 skb linear: 00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 skb linear: 00000080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 skb linear: 00000090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 skb linear: 000000a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 skb linear: 000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 skb linear: 000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 skb linear: 000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 skb linear: 000000e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 skb linear: 000000f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 skb linear: 00000100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 skb linear: 00000110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 skb linear: 00000120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00