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    XINT.IO BLOG

    Insights from the world's best offensive security researchers
    Juno Im's avatar
    Juno Im
    Copy Fail: 732 Bytes to Root on Every Major Linux Distribution.

    Copy Fail: 732 Bytes to Root on Every Major Linux Distribution.

    Xint Code disclosed CVE-2026-31431, an authencesn scratch-write bug chaining AF_ALG + splice() into a 4-byte page cache write. A 732-byte PoC gets root on Ubuntu, Amazon Linux, RHEL, SUSE.
    Juno Im's avatar
    Apr 29, 2026
    AI for Security Vulnerability Research