RLSA-2026:1148

Security

Mirrored from RHSA-2026:1148

Issued at: 2026-02-03

Updated at: 2026-02-03

Synopsis

Important: kernel-rt security update

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: Bluetooth: hci_event: call disconnect callback before deleting conn (CVE-2023-53673)

* kernel: ASoC: Intel: bytcr_rt5640: Fix invalid quirk input mapping (CVE-2025-40154)

* kernel: Linux kernel: vsock vulnerability may lead to memory corruption (CVE-2025-40248)

* kernel: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE (CVE-2025-40277)

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.

Affected products

Rocky Linux 8 x86_64

Fixes

2402193

2414494

2418872

2419954

CVEs

CVE-2023-53673

CVE-2025-40154

CVE-2025-40248

CVE-2025-40277

Affected packages

Rocky Linux 8 x86_64 - NFV

kernel-rt-0:4.18.0-553.97.1.rt7.438.el8_10.src.rpm

kernel-rt-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-core-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-debug-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-debug-core-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-debug-debuginfo-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-debug-devel-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-debuginfo-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-debug-kvm-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-debug-modules-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-debug-modules-extra-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-devel-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-kvm-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-modules-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

kernel-rt-modules-extra-0:4.18.0-553.97.1.rt7.438.el8_10.x86_64.rpm

Rocky Linux 8 x86_64 - RT