CVE-2025-39759

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

Description: A race condition exists between disabling quotas and running the quota rescan ioctl in the btrfs subsystem. This can lead to a use-after-free of qgroup records from the fs info->qgroup tree rbtree. The issue occurs when a task disables quotas while another task is running the rescan ioctl, potentially freeing qgroup records without holding the necessary lock.

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