CVE-2026-46243 | Linux Kernel up to 7.1-rc4 smb upcall_target privilege escalation

A vulnerability identified as critical has been detected in Linux Kernel up to 7.1-rc4. This affects the function upcall_target of the component smb. Performing a manipulation results in privilege escalation.

This vulnerability is reported as CVE-2026-46243. The attacker must have access to the local network to execute the attack. No exploit exists.

You should upgrade the affected component.VulDB Recent EntriesRead More