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Local Privilege Escalation Vulnerability 'Copy Fail' in Linux Kernel

A local privilege escalation vulnerability, dubbed 'Copy Fail' (CVE-2026-31431), affects Linux kernels released since 2017, allowing an unprivileged local attacker to gain root permissions by exploiting a logic bug in the authencesn cryptographic template.

Linux kernel +4 Theori privilege-escalation linux vulnerability
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