syzbot

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WARNING: CPU: 0 PID: 32527 at net/core/dev.c:3265 skb_checksum_help+0x4a2/0x600 net/core/dev.c:3265
Modules linked in:
CPU: 0 PID: 32527 Comm: syz-executor.0 Not tainted 6.1.0-syzkaller-13822-g6feb57c2fd7c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:skb_checksum_help+0x4a2/0x600 net/core/dev.c:3265
Code: e0 48 83 c4 28 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 b3 75 ba f9 48 89 ef 41 bc ea ff ff ff e8 35 f9 ff ff eb d4 e8 9e 75 ba f9 <0f> 0b 0f b6 1d 61 d9 96 06 31 ff 89 de e8 fc 71 ba f9 84 db 0f 84
RSP: 0018:ffffc900164f7660 EFLAGS: 00010216
RAX: 0000000000007a73 RBX: 000000000000034a RCX: ffffc90003d91000
RDX: 0000000000040000 RSI: ffffffff87c6dc22 RDI: 0000000000000004
RBP: ffff888034dc53c0 R08: 0000000000000004 R09: 000000000000019a
R10: 0000000000000348 R11: 0000000000094001 R12: ffff888034dc5434
R13: 0000000000000000 R14: ffff888034dc5440 R15: 0000000000000348
FS:  00007f7c07b55700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000f000 CR3: 0000000029b6d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000003b DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 netem_enqueue+0x2b36/0x3570 net/sched/sch_netem.c:510
 netem_enqueue+0x202f/0x3570 net/sched/sch_netem.c:483
 dev_qdisc_enqueue+0x46/0x390 net/core/dev.c:3778
 __dev_xmit_skb net/core/dev.c:3867 [inline]
 __dev_queue_xmit+0x2279/0x3ba0 net/core/dev.c:4215
 packet_snd net/packet/af_packet.c:3073 [inline]
 packet_sendmsg+0x334c/0x5500 net/packet/af_packet.c:3104
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 __sys_sendto+0x23a/0x340 net/socket.c:2117
 __do_sys_sendto net/socket.c:2129 [inline]
 __se_sys_sendto net/socket.c:2125 [inline]
 __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2125
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7c06e8c0d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7c07b55168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f7c06fabf80 RCX: 00007f7c06e8c0d9
RDX: 000000000000fc13 RSI: 0000000020000280 RDI: 0000000000000003
RBP: 00007f7c06ee7ae9 R08: 0000000000000000 R09: 000000000000002f
R10: 0000000000000800 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7c070cfb1f R14: 00007f7c07b55300 R15: 0000000000022000
 </TASK>