------------[ cut here ]------------ WARNING: CPU: 0 PID: 14517 at net/core/dev.c:3265 skb_checksum_help+0x4a2/0x600 net/core/dev.c:3265 Modules linked in: CPU: 0 PID: 14517 Comm: syz-executor.1 Not tainted 6.2.0-rc4-syzkaller-00191-g71ab9c3e2253 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 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 e3 c1 b9 f9 48 89 ef 41 bc ea ff ff ff e8 35 f9 ff ff eb d4 e8 ce c1 b9 f9 <0f> 0b 0f b6 1d 70 33 96 06 31 ff 89 de e8 2c be b9 f9 84 db 0f 84 RSP: 0018:ffffc9000acff660 EFLAGS: 00010212 RAX: 0000000000008bbb RBX: 000000000000034a RCX: ffffc9000c1ec000 RDX: 0000000000040000 RSI: ffffffff87c7a0a2 RDI: 0000000000000004 RBP: ffff888029b21a00 R08: 0000000000000004 R09: 000000000000019a R10: 0000000000000348 R11: 0000000000094001 R12: ffff888029b21a74 R13: 0000000000000000 R14: ffff888029b21a80 R15: 0000000000000348 FS: 00007fe51a981700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000f000 CR3: 000000007b470000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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: 0033:0x7fe519c8c0c9 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:00007fe51a981168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe519dabf80 RCX: 00007fe519c8c0c9 RDX: 000000000000fc13 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 00007fe519ce7ae9 R08: 0000000000000000 R09: 000000000000002f R10: 0000000000000800 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca88d60ff R14: 00007fe51a981300 R15: 0000000000022000