CVE-2026-45972: kernel: smb: client: fix potential UAF and double free in smb2_open_file()

Severity: Critical

CVSS Score: 9.8

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF and double free in smb2_open_file() Zero out @err_iov and @err_buftype before retrying SMB2_open() to prevent an UAF bug if @data != NULL, otherwise a double free.