CVE-2026-45972

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

Description A Use-After-Free (UAF) and double free issue exists in the SMB client. The problem occurs within the smb2 open file() function when retrying SMB2 open(). If the data variable is not null, a UAF bug can occur; otherwise, a double free may happen. This is caused by the failure to zero out the err iov and err buftype variables before the retry attempt.

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