An update for kpatch-patch 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
 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.

This is a kernel live patch module which is automatically loaded by the RPM
 post-install script to modify the code of a running kernel.

Security Fix(es):

* kernel: net/sched: Use-after-free vulnerabilities in the net/sched
 classifiers: cls_fw, cls_u32 and cls_route (CVE-2023-4128)

* kernel: nf_tables: use-after-free in nft_chain_lookup_byid() (CVE-2023-31248)

* kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval()
 (CVE-2023-35001)

* kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()
 (CVE-2023-35788)

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-2023-4128: Use After Free (CWE-416)
CVE-2023-31248: Use After Free (CWE-416)
CVE-2023-35001: Out-of-bounds Read (CWE-125)
CVE-2023-35788: Out-of-bounds Write (CWE-787)