netlink: 'syz.4.8003': attribute type 12 has an invalid length.
CFI failure at __traceiter_neigh_update+0x9d/0xf0 include/trace/events/neigh.h:72 (target: 0xffffc90003a871f0; expected type: 0xcdd4cfdd)
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 32166 Comm: syz.4.8003 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__traceiter_neigh_update+0x9d/0xf0 include/trace/events/neigh.h:72
Code: 05 e8 87 e4 b8 fd 49 8b 7e 08 48 8b 75 c8 48 8b 55 c0 44 89 e9 44 8b 45 d4 44 8b 4d d0 41 ba 23 30 2b 32 45 03 54 24 fc 74 02 <0f> 0b 41 ff d4 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74
RSP: 0018:ffffc90003a871f0 EFLAGS: 00010282
RAX: 1ffff11022a91fe3 RBX: ffff88811548ff10 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff88811f597800 RDI: ffffc9000399f000
RBP: ffffc90003a87230 R08: 00000000000000a8 R09: 00000000cd695958
R10: 00000000d76b972f R11: 1ffffffff0ee4e85 R12: ffffffff81713c50
R13: 0000000000000001 R14: ffff88811548ff10 R15: dffffc0000000000
FS:  00007f27337d66c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000012f707000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 trace_neigh_update include/trace/events/neigh.h:72 [inline]
 __neigh_update+0x1f4b/0x2080 net/core/neighbour.c:1307
 neigh_add+0x9c9/0xd30 net/core/neighbour.c:2090
 rtnetlink_rcv_msg+0x9f4/0xcf0 net/core/rtnetlink.c:6153
 netlink_rcv_skb+0x1f2/0x440 net/netlink/af_netlink.c:2521
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:6171
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x8ab/0xa30 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x8aa/0xbc0 net/netlink/af_netlink.c:1873
 sock_sendmsg_nosec net/socket.c:716 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 sock_write_iter+0x2ca/0x3b0 net/socket.c:1133
 call_write_iter include/linux/fs.h:2282 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5db/0xca0 fs/read_write.c:584
 ksys_write+0x140/0x240 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 x64_sys_call+0x27b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f2734d8f6c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f27337d6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2734fe6180 RCX: 00007f2734d8f6c9
RDX: 00000000000000fc RSI: 00002000000002c0 RDI: 0000000000000008
RBP: 00007f2734e11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2734fe6218 R14: 00007f2734fe6180 R15: 00007ffe98c03c48
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__traceiter_neigh_update+0x9d/0xf0 include/trace/events/neigh.h:72
Code: 05 e8 87 e4 b8 fd 49 8b 7e 08 48 8b 75 c8 48 8b 55 c0 44 89 e9 44 8b 45 d4 44 8b 4d d0 41 ba 23 30 2b 32 45 03 54 24 fc 74 02 <0f> 0b 41 ff d4 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74
RSP: 0018:ffffc90003a871f0 EFLAGS: 00010282
RAX: 1ffff11022a91fe3 RBX: ffff88811548ff10 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff88811f597800 RDI: ffffc9000399f000
RBP: ffffc90003a87230 R08: 00000000000000a8 R09: 00000000cd695958
R10: 00000000d76b972f R11: 1ffffffff0ee4e85 R12: ffffffff81713c50
R13: 0000000000000001 R14: ffff88811548ff10 R15: dffffc0000000000
FS:  00007f27337d66c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000012f707000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400