netlink: 'syz.3.57': attribute type 2 has an invalid length.
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kernel BUG at net/phonet/socket.c:213!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 6237 Comm: syz.3.57 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]
RIP: 0010:pn_socket_autobind+0x14c/0x170 net/phonet/socket.c:202
Code: 00 00 00 00 48 8b 44 24 58 65 48 2b 05 a5 32 47 09 75 2a 48 83 c4 60 89 d8 5b 5d 41 5c 41 5d c3 cc cc cc cc e8 65 4d 3c f7 90 <0f> 0b e8 1d 06 aa f7 eb 9e e8 76 06 aa f7 e9 6c ff ff ff e8 cc bd
RSP: 0018:ffffc90004007a30 EFLAGS: 00010287
RAX: 0000000000000c09 RBX: 0000000000000000 RCX: ffffc9000d1a3000
RDX: 0000000000080000 RSI: ffffffff8acd2d7b RDI: ffff888058ada500
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff92000800f46
R13: dffffc0000000000 R14: 1ffff92000800f61 R15: ffffc90004007e48
FS:  00007f2d1de726c0(0000) GS:ffff8880d63da000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2ef9f4 CR3: 00000000609e2000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 pn_socket_sendmsg+0x43/0xe0 net/phonet/socket.c:421
 sock_sendmsg_nosec net/socket.c:787 [inline]
 __sock_sendmsg net/socket.c:802 [inline]
 ____sys_sendmsg+0x9e1/0xb70 net/socket.c:2698
 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2752
 __sys_sendmsg+0x170/0x220 net/socket.c:2784
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x10b/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2d1cf9c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2d1de72028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2d1d216090 RCX: 00007f2d1cf9c819
RDX: 0000000020040880 RSI: 0000200000000340 RDI: 0000000000000007
RBP: 00007f2d1d032c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2d1d216128 R14: 00007f2d1d216090 R15: 00007ffdc79411c8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]
RIP: 0010:pn_socket_autobind+0x14c/0x170 net/phonet/socket.c:202
Code: 00 00 00 00 48 8b 44 24 58 65 48 2b 05 a5 32 47 09 75 2a 48 83 c4 60 89 d8 5b 5d 41 5c 41 5d c3 cc cc cc cc e8 65 4d 3c f7 90 <0f> 0b e8 1d 06 aa f7 eb 9e e8 76 06 aa f7 e9 6c ff ff ff e8 cc bd
RSP: 0018:ffffc90004007a30 EFLAGS: 00010287
RAX: 0000000000000c09 RBX: 0000000000000000 RCX: ffffc9000d1a3000
RDX: 0000000000080000 RSI: ffffffff8acd2d7b RDI: ffff888058ada500
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff92000800f46
R13: dffffc0000000000 R14: 1ffff92000800f61 R15: ffffc90004007e48
FS:  00007f2d1de726c0(0000) GS:ffff8880d63da000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2ef9f4 CR3: 00000000609e2000 CR4: 0000000000352ef0