A security issue has been found in the Linux kernel. An attacker with a low-privileged user on a Linux machine with an overlay mount which has a file capability in one of its layers may escalate his privileges up to root when copying a capable file from a nosuid mount into another mount.
A security issue has been found in the Linux kernel. An attacker with a low-privileged user on a Linux machine with an overlay mount which has a file capability in one of its layers may escalate his privileges up to root when copying a capable file from a nosuid mount into another mount.
https://www.openwall.com/lists/oss-security/2021/10/14/3
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