netlink: 'syz.4.1045': 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: 9382 Comm: syz.4.1045 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline] RIP: 0010:pn_socket_connect+0xb99/0xba0 net/phonet/socket.c:227 Code: 48 8b 7c 24 10 e9 68 fd ff ff 44 89 e1 80 e1 07 38 c1 0f 8c 17 fd ff ff 4c 89 e7 e8 e1 6c 22 f8 e9 0a fd ff ff e8 17 2d ca f7 <0f> 0b 0f 1f 44 00 00 f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 RSP: 0018:ffffc90003357c40 EFLAGS: 00010287 RAX: ffffffff89bcfe79 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc90004d89000 RSI: 000000000000003b RDI: 000000000000003c RBP: ffffc90003357db0 R08: ffffffff8e8b666f R09: 1ffffffff1d16ccd R10: dffffc0000000000 R11: fffffbfff1d16cce R12: ffff888075e7b018 R13: 1ffff9200066af98 R14: dffffc0000000000 R15: 1ffff1100ebcf603 FS: 00007fd64f5466c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f64ea5fa898 CR3: 000000003a49d000 CR4: 00000000003506e0 Call Trace: __sys_connect_file net/socket.c:2056 [inline] __sys_connect+0x3da/0x470 net/socket.c:2073 __do_sys_connect net/socket.c:2083 [inline] __se_sys_connect net/socket.c:2080 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2080 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: 0033:0x7fd64e59ce59 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:00007fd64f546028 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007fd64e815fa0 RCX: 00007fd64e59ce59 RDX: 000000000000006e RSI: 0000200000000280 RDI: 0000000000000007 RBP: 00007fd64e632d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fd64e816038 R14: 00007fd64e815fa0 R15: 00007ffd0e8274c8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline] RIP: 0010:pn_socket_connect+0xb99/0xba0 net/phonet/socket.c:227 Code: 48 8b 7c 24 10 e9 68 fd ff ff 44 89 e1 80 e1 07 38 c1 0f 8c 17 fd ff ff 4c 89 e7 e8 e1 6c 22 f8 e9 0a fd ff ff e8 17 2d ca f7 <0f> 0b 0f 1f 44 00 00 f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 RSP: 0018:ffffc90003357c40 EFLAGS: 00010287 RAX: ffffffff89bcfe79 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc90004d89000 RSI: 000000000000003b RDI: 000000000000003c RBP: ffffc90003357db0 R08: ffffffff8e8b666f R09: 1ffffffff1d16ccd R10: dffffc0000000000 R11: fffffbfff1d16cce R12: ffff888075e7b018 R13: 1ffff9200066af98 R14: dffffc0000000000 R15: 1ffff1100ebcf603 FS: 00007fd64f5466c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd64e5ea540 CR3: 000000003a49d000 CR4: 00000000003506e0