RHSA-2024:1614 — Security Advisory

Red Hat Security Advisory: kernel-rt security and bug fix update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · April 3, 2024

Updated · August 11, 2026

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.

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: vmwgfx: NULL pointer dereference in vmw_cmd_dx_define_query (CVE-2022-38096)
kernel: Out of boundary write in perf_read_group() as result of overflow a perf_event's read_size (CVE-2023-6931)
kernel: GSM multiplexing race condition leads to privilege escalation (CVE-2023-6546,ZDI-CAN-20527)
kernel: CIFS Filesystem Decryption Improper Input Validation Remote Code Execution Vulnerability in function receive_encrypted_standard of client (CVE-2024-0565)
kernel: use-after-free in amdgpu_cs_wait_all_fences in drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c (CVE-2023-51042)
kernel: ext4: kernel bug in ext4_write_inline_data_end() (CVE-2021-33631)
kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function (CVE-2024-1086)

Bug Fix(es):

kernel-rt: update RT source tree to the latest RHEL-8.9.z3 Batch (JIRA:RHEL-23853)
kernel-rt: kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function (JIRA:RHEL-24015)
kernel-rt: kernel: vmxgfx: NULL pointer dereference in vmw_cmd_dx_define_query (JIRA:RHEL-22758)
kernel-rt: kernel: CIFS Filesystem Decryption Improper Input Validation Remote Code Execution Vulnerability in function receive_encrypted_standard of client (JIRA:RHEL-22080)
kernel-rt: kernel: Out of boundary write in perf_read_group() as result of overflow a perf_event's read_size (JIRA:RHEL-22933)
kernel-rt: kernel: use-after-free in amdgpu_cs_wait_all_fences in drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c (JIRA:RHEL-24498)
kernel-rt: kernel: GSM multiplexing race condition leads to privilege escalation (JIRA:RHEL-19966)
kernel-rt: kernel: ext4: kernel bug in ext4_write_inline_data_end() (JIRA:RHEL-26334)