The following advisory data is extracted from:
https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_1836.json
Red Hat officially shut down their mailing list notifications October 10, 2023.  Due to this, Packet Storm has recreated the below data as a reference point to raise awareness.  It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.
- Packet Storm Staff
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Red Hat Security Advisory
Synopsis:           Moderate: kernel security, bug fix, and enhancement update
Advisory ID:        RHSA-2024:1836-03
Product:            Red Hat Enterprise Linux
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:1836
Issue date:         2024-04-16
Revision:           03
CVE Names:          CVE-2021-33631
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Summary: 
An update for kernel is now available for Red Hat Enterprise Linux 9.0 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: Out of boundary write in perf_read_group() as result of overflow a perf_event's read_size (CVE-2023-6931)
* kernel: ext4: kernel bug in ext4_write_inline_data_end() (CVE-2021-33631)
Bug Fix(es):
* Performance drop on Broadcom bnxt_en nic after OCP upgrade from OCP 4.12 to OCP 4.13 (4.18.0-372.32.1.el8_6.x86_64 to 5.14.0-284.32.1.el9_2.x86_64) (JIRA:RHEL-15379)
* High latency with Matrox mgag200 (JIRA:RHEL-16558)
* [regression][ext4][xfstests generic/094] Error reading from file with invalid argument (JIRA:RHEL-25435)
* kernel: Out of boundary write in perf_read_group() as result of overflow a perf_event's read_size (JIRA:RHEL-21646)
* xfs_growfs: XFS_IOC_FSGROWFSDATA xfsctl failed: No space left on device (RHEL9) (JIRA:RHEL-28688)
* Memory corruption when using dm-crypt or dm-verity on RHEL-9 (JIRA:RHEL-26094)
* kernel: ext4: kernel bug in ext4_write_inline_data_end() (JIRA:RHEL-26335)
Enhancement(s):
* [IBM 9.4 FEAT] Upgrade the qeth driver to latest from upstream, e.g. kernel 6.4 (JIRA:RHEL-25812)
Solution:
https://access.redhat.com/articles/11258
CVEs:
CVE-2021-33631
References:
https://access.redhat.com/security/updates/classification/#moderate
https://bugzilla.redhat.com/show_bug.cgi?id=2252731
https://bugzilla.redhat.com/show_bug.cgi?id=2261976