RHSA-2026:51746 — Security Advisory
Red Hat Security Advisory: kernel security, bug fix, and enhancement update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · August 8, 2026
Updated · November 2, 2026
Topic
An update for kernel is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions.
Red Hat Product Security has rated this update as having a security impact of Important. 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):
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kernel: selinux: fix overlayfs mmap() and mprotect() access checks (CVE-2026-46054)
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kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources (CVE-2025-10263)
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kernel: net: openvswitch: reject oversized nested action attrs (CVE-2026-64531)
Bug Fix(es) and Enhancement(s):
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[RHEL 9.7] Core and x86 IOMMU subsystem update [rhel-9.4.z] (JIRA:RHEL-134805)
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[xfstests xfs/017] xfs_repair fails and hit XFS: Assertion failed: 0, file: fs/xfs/xfs_icache.c, line: 1840 [rhel-9.4.z] (JIRA:RHEL-188770)
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nfs: backport patch which checks delegation validity in nfs_start_delegation_return_locked to RHEL 9 [rhel-9.4.z] (JIRA:RHEL-212041)
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.