CVE-2022-50460 cifs: Fix xid leak in cifs_flock()

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix xid leak in cifsflock If not flock, before return -ENOLCK, should free the xid, otherwise, the xid will be leaked...

CVE-2022-50460

The CVE-2022-50460 issue is in the Linux kernel CIFS logic: an xid leak in cifs_flock() when flock is used can leak xid on early return (-ENOLCK). Multiple connected advisories (Astra Linux, Unity Linux, EulerOS, SUSE) cite the same description and confirm a fix in the kernel. The vulnerability i...