RHSA-2026:56574 — Security Advisory
Red Hat Security Advisory: kernel security, bug fix, and enhancement update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · August 19, 2026
Updated · October 30, 2026
Topic
An update for kernel is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
-
kernel: scsi: core: Wake up the error handler when final completions race against each other (CVE-2026-23110)
-
kernel: net: atm: fix crash due to unvalidated vcc pointer in sigd_send() (CVE-2026-31411)
-
kernel: crypto: ccp - copy IV using skcipher ivsize (CVE-2026-53016)
-
kernel: dm log: fix out-of-bounds write due to region_count overflow (CVE-2026-53059)
Bug Fix(es) and Enhancement(s):
- Kernels 5.14.0-434+ may lose page table dirty bit (and page data) [rhel-9.6.z] (JIRA:RHEL-220786)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.