------------[ cut here ]------------ WARNING: CPU: 1 PID: 5082 at net/core/dev.c:3260 skb_checksum_help+0x4a2/0x600 net/core/dev.c:3260 Modules linked in: CPU: 1 PID: 5082 Comm: syz-executor228 Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 RIP: 0010:skb_checksum_help+0x4a2/0x600 net/core/dev.c:3260 Code: e0 48 83 c4 28 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 63 15 70 f9 48 89 ef 41 bc ea ff ff ff e8 35 f9 ff ff eb d4 e8 4e 15 70 f9 <0f> 0b 0f b6 1d 88 29 4e 06 31 ff 89 de e8 4c 11 70 f9 84 db 0f 84 RSP: 0018:ffffc90003b6f660 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 000000000000034a RCX: 0000000000000000 RDX: ffff888024171d40 RSI: ffffffff8814b1f2 RDI: 0000000000000004 RBP: ffff888079090780 R08: 0000000000000004 R09: 000000000000019a R10: 0000000000000348 R11: 0000000000000000 R12: ffff8880790907f4 R13: 0000000000000000 R14: ffff888079090800 R15: 0000000000000348 FS: 00005555559ed300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000f000 CR3: 0000000072c0b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: netem_enqueue+0x2b57/0x35b0 net/sched/sch_netem.c:510 netem_enqueue+0x2050/0x35b0 net/sched/sch_netem.c:483 dev_qdisc_enqueue+0x46/0x3b0 net/core/dev.c:3773 __dev_xmit_skb net/core/dev.c:3862 [inline] __dev_queue_xmit+0x236a/0x3db0 net/core/dev.c:4210 packet_snd net/packet/af_packet.c:3073 [inline] packet_sendmsg+0x33aa/0x55d0 net/packet/af_packet.c:3104 sock_sendmsg_nosec net/socket.c:722 [inline] sock_sendmsg+0xde/0x190 net/socket.c:745 __sys_sendto+0x23a/0x340 net/socket.c:2145 __do_sys_sendto net/socket.c:2157 [inline] __se_sys_sendto net/socket.c:2153 [inline] __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2153 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: 0033:0x7fa19dae7699 Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffb3262e28 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fffb3262e48 RCX: 00007fa19dae7699 RDX: 000000000000fc13 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 0000000000000003 R08: 0000000000000000 R09: 000000000000002f R10: 0000000000000800 R11: 0000000000000246 R12: 00007fffb3262e50 R13: 00007fffb3262e70 R14: 0000000000000000 R15: 0000000000000000