netlink: 'syz.1.142': 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: 4899 Comm: syz.1.142 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
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 ee 01 c4 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 0f ff ff ff 48 89 df e8 37 4a 67 f8 e9 02 ff ff ff e8 8d 1d 16 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:ffffc9000c6cf960 EFLAGS: 00010283
RAX: ffffffff896c1663 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000cb59000 RSI: 0000000000000063 RDI: 0000000000000064
RBP: ffffc9000c6cfa10 R08: ffff8880562c0d1b R09: 1ffff1100ac581a3
R10: dffffc0000000000 R11: ffffed100ac581a4 R12: dffffc0000000000
R13: ffff88807035f800 R14: ffff8880562c0c80 R15: 1ffff920018d9f30
FS:  00007f2ef3a496c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2ef3a06ff8 CR3: 0000000056583000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5ed/0x9a0 net/socket.c:2519
 ___sys_sendmsg+0x2a2/0x360 net/socket.c:2573
 __sys_sendmsg net/socket.c:2602 [inline]
 __do_sys_sendmsg net/socket.c:2611 [inline]
 __se_sys_sendmsg+0x1c3/0x2b0 net/socket.c:2609
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f2ef2b9de99
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:00007f2ef3a49028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2ef2e25fa0 RCX: 00007f2ef2b9de99
RDX: 0000000000000004 RSI: 0000200000000540 RDI: 000000000000000a
RBP: 00007f2ef2c33eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2ef2e26038 R14: 00007f2ef2e25fa0 R15: 00007ffc850b28e8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
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 ee 01 c4 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 0f ff ff ff 48 89 df e8 37 4a 67 f8 e9 02 ff ff ff e8 8d 1d 16 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:ffffc9000c6cf960 EFLAGS: 00010283
RAX: ffffffff896c1663 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000cb59000 RSI: 0000000000000063 RDI: 0000000000000064
RBP: ffffc9000c6cfa10 R08: ffff8880562c0d1b R09: 1ffff1100ac581a3
R10: dffffc0000000000 R11: ffffed100ac581a4 R12: dffffc0000000000
R13: ffff88807035f800 R14: ffff8880562c0c80 R15: 1ffff920018d9f30
FS:  00007f2ef3a496c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3add3f CR3: 0000000056583000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400