netlink: 'syz.3.54': attribute type 2 has an invalid length.
------------[ cut here ]------------
kernel BUG at net/phonet/socket.c:213!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4522 Comm: syz.3.54 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]
RIP: 0010:pn_socket_sendmsg+0x223/0x230 net/phonet/socket.c:422
Code: 41 5f 5d c3 e8 ce 87 b0 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 0f ff ff ff 48 89 df e8 87 92 ae f8 e9 02 ff ff ff e8 dd 6f 69 f8 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 55 48 89 e5 41 57 41 56 41
RSP: 0018:ffffc90002dafc40 EFLAGS: 00010287
RAX: ffffffff890f8cd3 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000ca31000 RSI: 0000000000000127 RDI: 0000000000000128
RBP: ffffc90002dafcf0 R08: ffff88802aa30d0b R09: 1ffff110055461a1
R10: dffffc0000000000 R11: ffffed10055461a2 R12: dffffc0000000000
R13: ffff88805fe8e000 R14: ffff88802aa30c80 R15: 1ffff920005b5f8c
FS:  00007ff627f2d6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff627f2bfa8 CR3: 00000000746e1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 sock_sendmsg_nosec net/socket.c:706 [inline]
 __sock_sendmsg net/socket.c:718 [inline]
 __sys_sendto+0x46d/0x620 net/socket.c:2073
 __do_sys_sendto net/socket.c:2085 [inline]
 __se_sys_sendto net/socket.c:2081 [inline]
 __x64_sys_sendto+0xda/0xf0 net/socket.c:2081
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ff629c9584e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ff627f2be88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007ff627f2d6c0 RCX: 00007ff629c9584e
RDX: 0000000000000020 RSI: 00007ff627f2c000 RDI: 0000000000000008
RBP: 0000000000000000 R08: 00007ff627f2bf04 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008
R13: 00007ff627f2bf58 R14: 00007ff627f2c000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 5f8648aa18228f71 ]---
RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]
RIP: 0010:pn_socket_sendmsg+0x223/0x230 net/phonet/socket.c:422
Code: 41 5f 5d c3 e8 ce 87 b0 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 0f ff ff ff 48 89 df e8 87 92 ae f8 e9 02 ff ff ff e8 dd 6f 69 f8 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 55 48 89 e5 41 57 41 56 41
RSP: 0018:ffffc90002dafc40 EFLAGS: 00010287
RAX: ffffffff890f8cd3 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000ca31000 RSI: 0000000000000127 RDI: 0000000000000128
RBP: ffffc90002dafcf0 R08: ffff88802aa30d0b R09: 1ffff110055461a1
R10: dffffc0000000000 R11: ffffed10055461a2 R12: dffffc0000000000
R13: ffff88805fe8e000 R14: ffff88802aa30c80 R15: 1ffff920005b5f8c
FS:  00007ff627f2d6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff629d22700 CR3: 00000000746e1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400