Copyright © 2012 Red Hat, Inc. All rights reserved. Low 2026-05-27T00:00:00 kernel: gfs2: fix memory leaks in gfs2_fill_super error path 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CWE-772

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.

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Out of support scope kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Fix deferred kernel Red Hat Enterprise Linux 8 Fix deferred kernel-rt Red Hat Enterprise Linux 9 Fix deferred kernel Red Hat Enterprise Linux 9 Fix deferred kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-45961 https://nvd.nist.gov/vuln/detail/CVE-2026-45961 https://lore.kernel.org/linux-cve-announce/2026052734-CVE-2026-45961-ca6d@gregkh/T