An update for kernel-rt is now available for Red Hat Enterprise Linux 7.

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-rt packages provide the Real Time Linux Kernel, which enables
 fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* sched/membarrier: reduce the ability to hammer on sys_membarrier
 (CVE-2024-26602)

* use-after-free in l2cap_connect and l2cap_le_connect_req in
 net/bluetooth/l2cap_core.c (CVE-2022-42896)

* use-after-free in sch_qfq network scheduler (CVE-2023-4921)

* IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871)

* fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map
 assignment (CVE-2023-38409)

* nf_tables: use-after-free vulnerability in the nft_verdict_init() function
 (CVE-2024-1086)

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.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2022-42896: Use After Free (CWE-416)
CVE-2023-4921: Use After Free (CWE-416)
CVE-2023-38409: Improper Validation of Array Index (CWE-129)
CVE-2023-45871: Buffer Copy without Checking Size of Input ('Classic Buffer
 Overflow') (CWE-120)
CVE-2024-1086: Use After Free (CWE-416)
CVE-2024-26602