netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4217 at net/core/dev.c:3284 skb_checksum_help+0x348/0x4f8 net/core/dev.c:3285 Modules linked in: CPU: 0 PID: 4217 Comm: syz-executor417 Not tainted 6.1.32-syzkaller #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+0x348/0x4f8 net/core/dev.c:3285 lr : skb_checksum_help+0x234/0x4f8 net/core/dev.c:3284 sp : ffff80001d9f6ae0 x29: ffff80001d9f6b00 x28: 0000000000000586 x27: 000000000000061f x26: dfff800000000000 x25: 0000000000000621 x24: 0000000000005653 x23: 0000000000000586 x22: ffff0000d3e3c718 x21: 0000000000000519 x20: ffff0000d3e3c640 x19: ffff800017ed6000 x18: 0000000000000278 x17: ffff800010b96db4 x16: ffff80000825f9d8 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: ff808000103f7580 x10: 0000000000000000 x9 : ffff0000d8741bc0 x8 : ffff8000103f7580 x7 : ffff8000103aa6a0 x6 : ffff8000103aa658 x5 : ffff80001d9f6a70 x4 : ffff80001d9f6a60 x3 : 000000000000006d x2 : 00000000000004fa x1 : 0000000000000519 x0 : 0000000000000621 Call trace: skb_checksum_help+0x348/0x4f8 net/core/dev.c:3285 ip_do_fragment+0x1bc/0x1b14 net/ipv4/ip_output.c:774 ip_fragment+0x11c/0x308 ip_finish_output_gso net/ipv4/ip_output.c:279 [inline] __ip_finish_output+0x280/0x458 net/ipv4/ip_output.c:301 ip_finish_output+0x40/0x268 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:291 [inline] ip_output+0x330/0x49c net/ipv4/ip_output.c:430 dst_output include/net/dst.h:444 [inline] ip_local_out+0x120/0x160 net/ipv4/ip_output.c:126 iptunnel_xmit+0x40c/0x88c net/ipv4/ip_tunnel_core.c:82 ip_tunnel_xmit+0x19ac/0x28e8 net/ipv4/ip_tunnel.c:813 __gre_xmit net/ipv4/ip_gre.c:469 [inline] ipgre_xmit+0x5d8/0x8c8 net/ipv4/ip_gre.c:661 __netdev_start_xmit include/linux/netdevice.h:4850 [inline] netdev_start_xmit include/linux/netdevice.h:4864 [inline] xmit_one net/core/dev.c:3595 [inline] dev_hard_start_xmit+0x25c/0x9a4 net/core/dev.c:3611 __dev_queue_xmit+0x186c/0x38d8 net/core/dev.c:4261 dev_queue_xmit+0x24/0x34 include/linux/netdevice.h:3018 packet_snd net/packet/af_packet.c:3073 [inline] packet_sendmsg+0x36f0/0x4ce0 net/packet/af_packet.c:3104 sock_sendmsg_nosec net/socket.c:716 [inline] sock_sendmsg net/socket.c:736 [inline] ____sys_sendmsg+0x558/0x844 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x26c/0x33c net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2572 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 135975 hardirqs last enabled at (135974): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:242 hardirqs last disabled at (135975): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (135600): [] spin_unlock_bh include/linux/spinlock.h:395 [inline] softirqs last enabled at (135600): [] release_sock+0x178/0x1cc net/core/sock.c:3484 softirqs last disabled at (135636): [] 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 03 24 00 00 0f 2f 0d ae 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