Daeho Jeong

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** The issue is related to the f2fs compression feature in the Linux kernel. If a data block in a compressed cluster is not persisted with metadata during a checkpoint, after a Storage Power Off Recovery (SPOR), the data may be corrupted. The fix guarantees that compressed pages are written by the checkpoint. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Linux kernel versions prior to 4.3.3 **Description** The issue allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging improper access to a certain error field in the ext4 journal stop function. **Recommendations** For versions prior to 4.3.3, update to version 4.3.3 or later to resolve the issue.