cyrano@piefed.social to

Selfhosted@lemmy.worldEnglish · 2 days ago

Copy Fail – CVE-2026-31431

4

46

Copy Fail – CVE-2026-31431

cyrano@piefed.social to

Selfhosted@lemmy.worldEnglish · 2 days ago

4

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.

cross-posted from: https://lemmy.bestiver.se/post/1076650

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TomAwezome@lemmy.world
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2 days ago
They have shipped out an update mitigation for the issue. http://ubuntu.com/blog/copy-fail-vulnerability-fixes-available

sudo apt update && sudo apt upgrade

and after that, also do the steps listed on that page for running rmmod and grepping for the affected module unloaded

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