Red Hat alert RHSA-2023:7419-01 (kpatch-patch)

An update for kpatch-patch 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.

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: sch_qfq component can be exploited if in qfq_change_agg
function happens qfq_enqueue overhead (CVE-2023-3611)

* kernel: net/sched: cls_fw component can be exploited as result of failure
in tcf_change_indev function (CVE-2023-3776)

* kernel: net/sched: Use-after-free vulnerabilities in the net/sched
classifiers: cls_fw, cls_u32 and cls_route (CVE-2023-4128, CVE-2023-4206,
CVE-2023-4207, CVE-2023-4208)

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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Original: https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_7419.json