A vulnerability was found in Linux Kernel up to 6.1.176/6.6.143/6.12.94/6.18.37/7.1.2. It has been rated as critical. Impacted is the function smb_check_perm_dacl of the component Ksmbd. Performing a manipulation results in out-of-bounds read.

This vulnerability is identified as CVE-2026-53390. The attack can be initiated remotely. There is not any exploit available.