An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced
 Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 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.

The kernel packages contain the Linux kernel, the core of any Linux operating
 system.

Security Fix(es):

* kernel: GSM multiplexing race condition leads to privilege escalation
 (CVE-2023-6546)

* kernel: dmaengine/idxd: hardware erratum allows potential security problem
 with direct access by untrusted application (CVE-2024-21823)

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.

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CVE-2023-6546: Use After Free (CWE-416)
CVE-2024-21823