------------[ cut here ]------------
kernel BUG at net/core/dev.c:3242!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 3 PID: 6854 Comm: syz-executor.3 Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:skb_checksum_help+0x4ad/0x5b0 net/core/dev.c:3242
Code: 41 5f c3 e8 d5 4c 4d fa 45 89 ec e9 59 ff ff ff e8 c8 4c 4d fa 48 89 ef 41 bc ea ff ff ff e8 2a f9 ff ff eb c7 e8 b3 4c 4d fa <0f> 0b e8 ac 4c 4d fa 0f 0b 4c 89 f7 e8 c2 7e 93 fa e9 79 fb ff ff
RSP: 0018:ffffc90004ef73c8 EFLAGS: 00010216
RAX: 000000000000322c RBX: 0000000000002345 RCX: ffffc9002960b000
RDX: 0000000000040000 RSI: ffffffff8729862d RDI: 0000000000000003
RBP: ffff8880152688c0 R08: 0000000000000062 R09: 0000000000000000
R10: ffffffff8729842f R11: 0000000000000000 R12: ffff888015268934
R13: 00000000000022b7 R14: ffff888015268940 R15: 0000000000002303
FS:  00007f31090fa700(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020010000 CR3: 00000000763cc000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 netem_enqueue+0x2b41/0x3550 net/sched/sch_netem.c:510
 qdisc_enqueue include/net/sch_generic.h:848 [inline]
 netem_enqueue+0xe3b/0x3550 net/sched/sch_netem.c:607
 netem_enqueue+0x2048/0x3550 net/sched/sch_netem.c:483
 dev_qdisc_enqueue+0x40/0x300 net/core/dev.c:3785
 __dev_xmit_skb net/core/dev.c:3869 [inline]
 __dev_queue_xmit+0x1f6e/0x3630 net/core/dev.c:4194
 packet_snd net/packet/af_packet.c:3052 [inline]
 packet_sendmsg+0x220b/0x52a0 net/packet/af_packet.c:3079
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:724
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f310bb84ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f31090fa188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f310bc97f60 RCX: 00007f310bb84ae9
RDX: 0000000000000080 RSI: 0000000020000440 RDI: 0000000000000003
RBP: 00007f310bbdef6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcad412fbf R14: 00007f31090fa300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace b74f66a7d107be36 ]---
RIP: 0010:skb_checksum_help+0x4ad/0x5b0 net/core/dev.c:3242
Code: 41 5f c3 e8 d5 4c 4d fa 45 89 ec e9 59 ff ff ff e8 c8 4c 4d fa 48 89 ef 41 bc ea ff ff ff e8 2a f9 ff ff eb c7 e8 b3 4c 4d fa <0f> 0b e8 ac 4c 4d fa 0f 0b 4c 89 f7 e8 c2 7e 93 fa e9 79 fb ff ff
RSP: 0018:ffffc90004ef73c8 EFLAGS: 00010216
RAX: 000000000000322c RBX: 0000000000002345 RCX: ffffc9002960b000
RDX: 0000000000040000 RSI: ffffffff8729862d RDI: 0000000000000003
RBP: ffff8880152688c0 R08: 0000000000000062 R09: 0000000000000000
R10: ffffffff8729842f R11: 0000000000000000 R12: ffff888015268934
R13: 00000000000022b7 R14: ffff888015268940 R15: 0000000000002303
FS:  00007f31090fa700(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020010000 CR3: 00000000763cc000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400