Alexey Makhalov

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** A memory leak issue has been resolved in the Linux kernel, specifically in the ext4 file system. The problem occurs when buffer head references are not released before calling `kill bdev()`, resulting in the buffer head and its associated page not being freed. This issue can be reproduced by creating an infinite loop of starting and stopping a mount point using `systemctl`. The memory leak is amplified by systemd creating a cgroup for each slice, which never gets freed, leading to increased memory consumption. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.