Q QA210
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Kernel Security

Linux Kernel &
Exploit Research

Linux kernel security research — LPE vulnerability analysis, page cache write primitives, and defensive hardening. Deep technical analysis of the Dirty* vulnerability class in the kernel.

LPE Page Cache COW Bypass Kernel Hardening Detection
Kernel Vulnerability Stats
1
Papers
1
CVE Analyzed
4
Related Vulns
5
Distro Affected
About
QA210
QA210
10th Grade • Vietnam

High school student from Vietnam passionate about offensive security, binary exploitation, and Active Directory attacks. Member of W4LLZ CTF team.

“Nothing is secure, everything has bugs, and humans are the biggest vulnerability.”
Kernel Research Tags
CVE-2026-31635 LPE Page Cache Dirty Pipe COW rxgk SUID Fedora Arch openSUSE Kernel Hardening
Exploit Techniques
Page Cache Write Primitive Primary
COW Guard Bypass Bypass
SUID Binary Overwrite Payload
In-Memory Only Stealth
FIM Evasion Evasion
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Kernel Exploit Research
Kernel Research LPE Critical 2026

DirtyDecrypt / DirtyCBC — Root Privilege Escalation via rxgk_decrypt_skb

Analysis of LPE vulnerability CVE-2026-31635 in the Linux kernel rxgk module. Exploiting a missing COW guard to overwrite page cache and achieve full root access without race conditions. Similar to Dirty Pipe but more dangerous — no pipe size limitation, operates in-memory only, bypasses FIM and SELinux.

CVE-2026-31635LPErxgkPage CacheCOWFedoraArch