CVE-2026-89788 | Linux Kernel up to 7.2.5/7.3-rc1 ksmbd fs/smb/server/smb2pdu.c smb2_tree_connect use after free (EUVD-2026-80309)

September 16, 2026 Yanac

A vulnerability was found in Linux Kernel up to 7.2.5/7.3-rc1 and classified as very critical. This affects the function smb2_tree_connect of the file fs/smb/server/smb2pdu.c of the component ksmbd. Executing a manipulation can lead to use after free.

This vulnerability is handled as CVE-2026-89788. The attack can be executed remotely. There is not any exploit available.

It is suggested to upgrade the affected component.VulDB Recent EntriesRead More