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: 1 PID: 4442 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline] RIP: 0010:pn_socket_connect+0xb87/0xb90 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 73 05 6a f8 e9 0a fd ff ff e8 59 f9 18 f8 <0f> 0b 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 RSP: 0018:ffffc900034c7c40 EFLAGS: 00010293 RAX: ffffffff89697bf7 RBX: 0000000000000000 RCX: ffff88802ffc0000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900034c7db0 R08: ffff88805c0b009b R09: 1ffff1100b816013 R10: dffffc0000000000 R11: ffffed100b816014 R12: ffff88805905da18 R13: 1ffff92000698f98 R14: dffffc0000000000 R15: 1ffff1100b20bb43 FS: 00007feb3fad66c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007feb3fab4ff8 CR3: 000000003066e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __sys_connect_file net/socket.c:2010 [inline] __sys_connect+0x3cb/0x450 net/socket.c:2027 __do_sys_connect net/socket.c:2037 [inline] __se_sys_connect net/socket.c:2034 [inline] __x64_sys_connect+0x76/0x80 net/socket.c:2034 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: 0033:0x7feb3eb9cdd9 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:00007feb3fad6028 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007feb3ee15fa0 RCX: 00007feb3eb9cdd9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 RBP: 00007feb3ec32d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007feb3ee16038 R14: 00007feb3ee15fa0 R15: 00007ffff8032348 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline] RIP: 0010:pn_socket_connect+0xb87/0xb90 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 73 05 6a f8 e9 0a fd ff ff e8 59 f9 18 f8 <0f> 0b 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 RSP: 0018:ffffc900034c7c40 EFLAGS: 00010293 RAX: ffffffff89697bf7 RBX: 0000000000000000 RCX: ffff88802ffc0000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900034c7db0 R08: ffff88805c0b009b R09: 1ffff1100b816013 R10: dffffc0000000000 R11: ffffed100b816014 R12: ffff88805905da18 R13: 1ffff92000698f98 R14: dffffc0000000000 R15: 1ffff1100b20bb43 FS: 00007feb3fad66c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007feb3fab5d58 CR3: 000000003066e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400