CVE-2022-50770

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

Description The Linux kernel contains a memory leak within the ocfs2 file system, specifically in the ocfs2 mount volume() function. The issue arises in two scenarios: when ocfs2 truncate log init() fails during mount, and when d make root() returns an error in ocfs2 fill super(). This leads to unreleased memory associated with the "replay map," which is used for tracking online/offline slots during recovery and mount. The replay map memory is normally freed during successful recovery and mount via ocfs2 complete mount recovery(). The fix involves adding error handling to free the replay map when ocfs2 truncate log init() fails and calling ocfs2 free replay slots(osb) in the "out dismount" error handling path. Additionally, the ocfs2 free replay slots() function has been modified to be non-static and declared in a header file.

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