vx-underground
@vxunderground
CVE-2026-31431 a/k/a CopyFail
> Linux LPE
> Description sounds like AI slop
> Exploit is legit
> Impacts every Linux kernel from 2017 - Now
> Proof-of-concept released
> It's Wednesday?
https://copy.fail/
> Linux LPE
> Description sounds like AI slop
> Exploit is legit
> Impacts every Linux kernel from 2017 - Now
> Proof-of-concept released
> It's Wednesday?
https://copy.fail/
Xint
Copy Fail — 732 Bytes to Root
CVE-2026-31431. 100% Reliable Linux LPE — no race, no per-distro offsets, page-cache write that bypasses on-disk file-integrity tools and crosses containers. Found by Xint Code.
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