copy.fail / CVE-2026-31431: Linux kernel local privilege escalation.
Update kernels when fixes land, then reboot.
Help wanted: reduce SUID attack surface upstream. If you don’t help, it probably won’t happen.
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copy.fail
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.