CVE-2025-21946

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to an out-of-bounds error in the parse sec desc() function within the ksmbd component of the Linux kernel. This occurs when osidoffset, gsidoffset, and dacloffset are greater than the smb ntsd struct size, potentially leading to a slab-out-of-bounds condition. The validation of sid also requires checking its inclusion in the subauth array size.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.