netlink: 'syz.0.17': 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: 0 PID: 5930 Comm: syz.0.17 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+0x235/0x240 net/phonet/socket.c:422
Code: 41 5f 5d c3 e8 9c 0e cb 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 0f ff ff ff 48 89 df e8 b5 48 1b f8 e9 02 ff ff ff e8 6b c7 c2 f7 <0f> 0b 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 55 48 89 e5 41 57 41
RSP: 0018:ffffc90003207c20 EFLAGS: 00010293
RAX: ffffffff89c4bb05 RBX: 0000000000000000 RCX: ffff88802ced5a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003207cd0 R08: ffffffff8e8c8daf R09: 1ffffffff1d191b5
R10: dffffc0000000000 R11: fffffbfff1d191b6 R12: dffffc0000000000
R13: ffff888073bef200 R14: ffff8880779f8640 R15: 1ffff92000640f88
FS:  00007f29cabc06c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f29c9d88fc0 CR3: 000000007ae39000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 __sys_sendto+0x4a9/0x6b0 net/socket.c:2201
 __do_sys_sendto net/socket.c:2213 [inline]
 __se_sys_sendto net/socket.c:2209 [inline]
 __x64_sys_sendto+0xde/0xf0 net/socket.c:2209
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f29c9d5e98e
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:00007f29cabbee88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f29cabc06c0 RCX: 00007f29c9d5e98e
RDX: 0000000000000020 RSI: 00007f29cabbf000 RDI: 0000000000000007
RBP: 0000000000000000 R08: 00007f29cabbef04 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007
R13: 00007f29cabbef58 R14: 00007f29cabbf000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]
RIP: 0010:pn_socket_sendmsg+0x235/0x240 net/phonet/socket.c:422
Code: 41 5f 5d c3 e8 9c 0e cb 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 0f ff ff ff 48 89 df e8 b5 48 1b f8 e9 02 ff ff ff e8 6b c7 c2 f7 <0f> 0b 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 55 48 89 e5 41 57 41
RSP: 0018:ffffc90003207c20 EFLAGS: 00010293
RAX: ffffffff89c4bb05 RBX: 0000000000000000 RCX: ffff88802ced5a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003207cd0 R08: ffffffff8e8c8daf R09: 1ffffffff1d191b5
R10: dffffc0000000000 R11: fffffbfff1d191b6 R12: dffffc0000000000
R13: ffff888073bef200 R14: ffff8880779f8640 R15: 1ffff92000640f88
FS:  00007f29cabc06c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f29c9d88fc0 CR3: 000000007ae39000 CR4: 00000000003506f0