CVE-2025-68764

A security bypass vulnerability was found in the Linux kernel's NFS client implementation. When a filesystem is automounted, user-specified security-related mount flags such as "ro" (read-only), "noexec" (no execution), "nodev" (no device files), and "sync" are not properly inherited by the automounted filesystem. This allows operations that should be restricted by the parent mount options.

This vulnerability allows bypassing mount security restrictions on NFS automounted filesystems. An attacker with access to an automounted NFS share could potentially execute binaries or write files when the parent mount was configured to prevent such actions. The impact depends on the specific mount flags used and what content is available on the NFS share.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.