RHSA-2024:6160 - Security Advisory

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions.

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.

Description

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: act_api: fix possible infinite loop in tcf_idr_check_alloc() (CVE-2024-40995)
• kernel: perf: Fix list corruption in perf_cgroup_switch() (CVE-2022-48799)
• kernel: virtio-net: tap: mlx5_core short frame denial of service (CVE-2024-41090)
• kernel: virtio-net: tun: mlx5_core short frame denial of service (CVE-2024-41091)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

• Red Hat Enterprise Linux for Real Time - Telecommunications Update Service 8.4 x86_64
• Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service 8.4 x86_64

Fixes

• BZ - 2297579 - CVE-2024-40995 kernel: net/sched: act_api: fix possible infinite loop in tcf_idr_check_alloc()
• BZ - 2298135 - CVE-2022-48799 kernel: perf: Fix list corruption in perf_cgroup_switch()
• BZ - 2299240 - CVE-2024-41090 kernel: virtio-net: tap: mlx5_core short frame denial of service
• BZ - 2299336 - CVE-2024-41091 kernel: virtio-net: tun: mlx5_core short frame denial of service

CVEs

• CVE-2022-48799
• CVE-2024-40995
• CVE-2024-41090
• CVE-2024-41091

References

• https://access.redhat.com/security/updates/classification/#important