CVE-2026-89687

A flaw was found in the Linux kernel's Network File System Daemon (nfsd). The nfsd_file_do_acquire() function might attempt to use a file that has not been fully opened, as the ->atomic_open operation could return success prematurely. While this scenario is considered highly improbable, it could lead to incorrect file operations and potential system instability or denial of service under specific, rare conditions.

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.