------------[ cut here ]------------
kernel BUG at net/core/dev.c:2873!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 418 Comm: syz-executor.0 Not tainted 5.4.259-syzkaller-04799-g4497cd332cf9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:skb_checksum_help+0x873/0x880 net/core/dev.c:2873
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c d0 fc ff ff 48 89 df e8 2e 22 16 fe e9 c3 fc ff ff e8 d4 51 e6 fd 0f 0b e8 cd 51 e6 fd <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 41 54 53
RSP: 0018:ffff8881dbdf70a8 EFLAGS: 00010293
RAX: ffffffff837df2d3 RBX: 000000000000045c RCX: ffff8881f31d4ec0
RDX: 0000000000000000 RSI: 000000000000045c RDI: 000000000000105f
RBP: 000000000000105f R08: ffffffff837ded4f R09: ffffed103b7bee06
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881eef14070
R13: 000000000000105d R14: ffff8881eef14000 R15: 1ffff1103dde280e
FS:  00007f4f46e756c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000f000 CR3: 00000001ef31e000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ip_do_fragment+0x15e/0x2200 net/ipv4/ip_output.c:789
 ip_finish_output_gso net/ipv4/ip_output.c:288 [inline]
 __ip_finish_output+0x49c/0x710 net/ipv4/ip_output.c:311
 NF_HOOK_COND include/linux/netfilter.h:292 [inline]
 ip_output+0x19b/0x3a0 net/ipv4/ip_output.c:440
 iptunnel_xmit+0x476/0x850 net/ipv4/ip_tunnel_core.c:78
 ipip6_tunnel_xmit net/ipv6/sit.c:993 [inline]
 sit_tunnel_xmit+0x1972/0x2460 net/ipv6/sit.c:1035
 __netdev_start_xmit include/linux/netdevice.h:4538 [inline]
 netdev_start_xmit include/linux/netdevice.h:4552 [inline]
 xmit_one net/core/dev.c:3213 [inline]
 dev_hard_start_xmit+0x1b7/0x6b0 net/core/dev.c:3229
 __dev_queue_xmit+0x14da/0x27e0 net/core/dev.c:3794
 packet_snd net/packet/af_packet.c:3009 [inline]
 packet_sendmsg+0x4747/0x6100 net/packet/af_packet.c:3038
 sock_sendmsg_nosec net/socket.c:638 [inline]
 __sock_sendmsg net/socket.c:650 [inline]
 __sys_sendto+0x4f3/0x6c0 net/socket.c:1959
 __do_sys_sendto net/socket.c:1971 [inline]
 __se_sys_sendto net/socket.c:1967 [inline]
 __x64_sys_sendto+0xda/0xf0 net/socket.c:1967
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
Modules linked in:
---[ end trace 7aab1a3980359ffb ]---
RIP: 0010:skb_checksum_help+0x873/0x880 net/core/dev.c:2873
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c d0 fc ff ff 48 89 df e8 2e 22 16 fe e9 c3 fc ff ff e8 d4 51 e6 fd 0f 0b e8 cd 51 e6 fd <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 41 54 53
RSP: 0018:ffff8881dbdf70a8 EFLAGS: 00010293
RAX: ffffffff837df2d3 RBX: 000000000000045c RCX: ffff8881f31d4ec0
RDX: 0000000000000000 RSI: 000000000000045c RDI: 000000000000105f
RBP: 000000000000105f R08: ffffffff837ded4f R09: ffffed103b7bee06
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881eef14070
R13: 000000000000105d R14: ffff8881eef14000 R15: 1ffff1103dde280e
FS:  00007f4f46e756c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000f000 CR3: 00000001ef31e000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400