Race Condition Vulnerability in Linux Kernel Btrfs Quota Management
CVE-2025-39759

Currently unrated

Key Information:

Vendor: Linux
Status: Linux
Vendor: CVE Published:; 11 September 2025

What is CVE-2025-39759?

A vulnerability in the Linux kernel's Btrfs file system arises from a race condition between tasks disabling quotas and others running the quota rescan ioctl. This can lead to a use-after-free scenario where quota group records are freed while other tasks attempt to access them, causing potential instability and data corruption. The issue is mitigated by properly locking shared resources during configuration adjustments, ensuring that quota rescan operations are not initiated when quotas are already disabled.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch