CVE-2026-45961
kernel: gfs2: fix memory leaks in gfs2_fill_super error path
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 27, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel's GFS2 filesystem. When a GFS2 filesystem transitions to read-write mode, specific error handling paths within the gfs2_fill_super() function fail to properly deallocate memory. This can lead to memory leaks of kernel thread objects and quota bitmap buffers. Over time, these unreferenced memory allocations can exhaust system resources, resulting in a Denial of Service (DoS) for the affected system.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime