netlink: 'syz-executor.0': attribute type 21 has an invalid length.
netlink: 168 bytes leftover after parsing attributes in process `syz-executor.0'.
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4097 at include/linux/skbuff.h:2773 skb_mac_header_was_set include/linux/skbuff.h:2768 [inline]
WARNING: CPU: 1 PID: 4097 at include/linux/skbuff.h:2773 skb_mac_header include/linux/skbuff.h:2773 [inline]
WARNING: CPU: 1 PID: 4097 at include/linux/skbuff.h:2773 bpf_internal_load_pointer_neg_helper+0x1b3/0x1e0 kernel/bpf/core.c:74
Modules linked in:
CPU: 1 PID: 4097 Comm: syz-executor.0 Not tainted 5.19.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
RIP: 0010:skb_mac_header include/linux/skbuff.h:2773 [inline]
RIP: 0010:bpf_internal_load_pointer_neg_helper+0x1b3/0x1e0 kernel/bpf/core.c:74
Code: 8b 04 24 e9 d8 fe ff ff 89 54 24 14 89 74 24 08 48 89 04 24 e8 be e1 36 00 8b 54 24 14 8b 74 24 08 48 8b 04 24 e9 68 ff ff ff <0f> 0b e9 72 ff ff ff 89 54 24 08 89 34 24 e8 ba e1 36 00 8b 54 24
RSP: 0018:ffffc90002cff528 EFLAGS: 00010246
RAX: ffff888076697000 RBX: ffff88801abfddc0 RCX: 000000000000ffff
RDX: 0000000000000002 RSI: ffffffffffe10002 RDI: ffff88801abfde7a
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff8f96f907
R10: fffffbfff1f2df20 R11: 0000000000000001 R12: 0000000000000000
R13: fffffffffff00001 R14: ffffc900015e4000 R15: ffffc900015e4002
FS:  00007f8f8ffd0700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f014af56300 CR3: 000000007e1cb000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ____bpf_skb_load_helper_16 net/core/filter.c:249 [inline]
 ____bpf_skb_load_helper_16_no_cache net/core/filter.c:260 [inline]
 bpf_skb_load_helper_16_no_cache+0x1ae/0x280 net/core/filter.c:257
 bpf_prog_e4a2190aaec26884+0x41/0x4c
 bpf_dispatcher_nop_func include/linux/bpf.h:885 [inline]
 __bpf_prog_run include/linux/filter.h:594 [inline]
 bpf_prog_run include/linux/filter.h:601 [inline]
 __bpf_prog_run_save_cb include/linux/filter.h:724 [inline]
 bpf_prog_run_save_cb include/linux/filter.h:738 [inline]
 sk_filter_trim_cap+0x202/0x800 net/core/filter.c:151
 sk_filter include/linux/filter.h:864 [inline]
 netlink_unicast+0x157/0x710 net/netlink/af_netlink.c:1347
 nlmsg_unicast include/net/netlink.h:1050 [inline]
 netlink_ack+0x40f/0x950 net/netlink/af_netlink.c:2471
 netlink_rcv_skb+0x264/0x370 net/netlink/af_netlink.c:2507
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x433/0x710 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x782/0xc30 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xab/0xe0 net/socket.c:734
 ____sys_sendmsg+0x5c2/0x7a0 net/socket.c:2489
 ___sys_sendmsg+0xd3/0x150 net/socket.c:2543
 __sys_sendmsg+0xb9/0x150 net/socket.c:2572
 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+0x46/0xb0
RIP: 0033:0x7f8f8ee89109
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8f8ffd0168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f8f8ef9bf60 RCX: 00007f8f8ee89109
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00007f8f8eee305d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff8f989d9f R14: 00007f8f8ffd0300 R15: 0000000000022000
 </TASK>