Deadlock in Linux kernel - CVE-2025-71309
Published: May 28, 2026
Vulnerability identifier: #VU132647
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-71309
CWE-ID: CWE-833
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a lock inversion deadlock in ni_read_folio_cmpr when handling concurrent reads of compressed NTFS frames. A local user can trigger concurrent page access to cause a denial of service.
The issue occurs because one execution path waits on page locks while another waits on the inode mutex, resulting in a task hang.
How to mitigate CVE-2025-71309
Install security update from vendor's repository.