Red Hat alert RHSA-2023:7379-01 (kernel-rt)

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2
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.

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

Security Fix(es):

* kernel: net/sched: cls_u32 component reference counter leak if
tcf_change_indev() fails (CVE-2023-3609)

* kernel: tun: bugs for oversize packet when napi frags enabled in
tun_napi_alloc_frags (CVE-2023-3812)

* 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)

* kernel: use after free in nvmet_tcp_free_crypto in NVMe (CVE-2023-5178)

* kernel: netfilter: potential slab-out-of-bound access due to integer
underflow (CVE-2023-42753)

* kernel: AMD: Cross-Thread Return Address Predictions (CVE-2022-27672)

* hw: Intel: Gather Data Sampling (GDS) side channel vulnerability
(CVE-2022-40982)

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_7379.json