Copyright © 2012 Red Hat, Inc. All rights reserved. Low 2026-06-24T00:00:00 kernel: block: fix zones_cond memory leak on zone revalidation error paths 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CWE-772

In the Linux kernel, the following vulnerability has been resolved: block: fix zones_cond memory leak on zone revalidation error paths When blk_revalidate_disk_zones() fails after disk_revalidate_zone_resources() has allocated args.zones_cond, the memory is leaked because no error path frees it.

A flaw was found in the Linux kernel's block subsystem. This vulnerability allows for a memory leak when zone revalidation fails, specifically when blk_revalidate_disk_zones() encounters an error after memory has been allocated for zones_cond. This can lead to resource exhaustion, potentially resulting in a Denial of Service (DoS) for the system.

Red Hat Enterprise Linux 10 Fix deferred kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-53127 https://nvd.nist.gov/vuln/detail/CVE-2026-53127 https://lore.kernel.org/linux-cve-announce/2026062418-CVE-2026-53127-edd3@gregkh/T