Copy Fail — 732 Bytes to Root
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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.
  • cyrano@piefed.socialOPEnglish
    1·
    2 hours ago

    Tested on Ubuntu 24.04. Security patching from Ubuntu does fix it. Scary vulnerability

    • cmnybo@discuss.tchncs.deEnglish
      1·
      21 minutes ago

      It looks like the fix is just disabling the algif_aead kernel module. That prevented the proof of concept script from working on everything I tested it on. Hopefully they will get some kernel updates out soon.