README.md

File No!

Author

ptr-yudai

Description

Files can be numbered using this kernel module! Also download the vulnerable code!

nc 65.109.198.121 5000

Special thanks to the author, ptr-Yudai!

Distribution

• FileNo_d118490a172f598c22a863c9c1460bdeee38c0e6.txz
• vuln_6c9d4a23d3e6f4ad4d2beb95b45655097ca29ac4.txz

Points

316

Solves

8

Writeup

• https://kqx.io/writeups/fileno/
• https://jkrshnmenon.github.io/blog/2025/asisctf25fileno/