netlink: 'syz.0.0': attribute type 2 has an invalid length.
------------[ cut here ]------------
kernel BUG at net/phonet/socket.c:213!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5333 Comm: syz.0.0 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_sendmsg+0x240/0x250 net/phonet/socket.c:421
Code: cc cc cc e8 02 74 d0 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 04 ff ff ff 48 89 df e8 4b 3c 59 f7 e9 f7 fe ff ff e8 a1 73 ec f6 90 <0f> 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90
RSP: 0018:ffffc9000dfaf920 EFLAGS: 00010283
RAX: ffffffff8ad9400f RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc9000efca000 RSI: 0000000000000051 RDI: 0000000000000052
RBP: ffffc9000dfaf9d0 R08: ffffffff9030baf7 R09: 1ffffffff206175e
R10: dffffc0000000000 R11: fffffbfff206175f R12: dffffc0000000000
R13: ffff888047419240 R14: ffff888036ce3a80 R15: 1ffff92001bf5f28
FS:  00007fc96ec9e6c0(0000) GS:ffff88808c888000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc96ec7cff8 CR3: 00000000361a3000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 sock_sendmsg_nosec net/socket.c:787 [inline]
 __sock_sendmsg net/socket.c:802 [inline]
 ____sys_sendmsg+0x972/0x9f0 net/socket.c:2698
 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2752
 __sys_sendmsg net/socket.c:2784 [inline]
 __do_sys_sendmsg net/socket.c:2789 [inline]
 __se_sys_sendmsg net/socket.c:2787 [inline]
 __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2787
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc96dd9cdd9
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:00007fc96ec9dfe8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc96e015fa0 RCX: 00007fc96dd9cdd9
RDX: 0000000000000840 RSI: 0000200000000180 RDI: 000000000000000c
RBP: 00007fc96de32d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc96e016038 R14: 00007fc96e015fa0 R15: 00007ffc6aaa3af8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]
RIP: 0010:pn_socket_sendmsg+0x240/0x250 net/phonet/socket.c:421
Code: cc cc cc e8 02 74 d0 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 04 ff ff ff 48 89 df e8 4b 3c 59 f7 e9 f7 fe ff ff e8 a1 73 ec f6 90 <0f> 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90
RSP: 0018:ffffc9000dfaf920 EFLAGS: 00010283
RAX: ffffffff8ad9400f RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc9000efca000 RSI: 0000000000000051 RDI: 0000000000000052
RBP: ffffc9000dfaf9d0 R08: ffffffff9030baf7 R09: 1ffffffff206175e
R10: dffffc0000000000 R11: fffffbfff206175f R12: dffffc0000000000
R13: ffff888047419240 R14: ffff888036ce3a80 R15: 1ffff92001bf5f28
FS:  00007fc96ec9e6c0(0000) GS:ffff88808c888000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc96ec7cff8 CR3: 00000000361a3000 CR4: 0000000000352ef0