Important: kernel-rt security update
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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://access.redhat.com/errata/RHSA-2026:1148
- https://access.redhat.com/security/cve/CVE-2023-53673
- https://access.redhat.com/security/cve/CVE-2025-40154
- https://access.redhat.com/security/cve/CVE-2025-40248
- https://access.redhat.com/security/cve/CVE-2025-40277
- https://bugzilla.redhat.com/2402193
- https://bugzilla.redhat.com/2414494
- https://bugzilla.redhat.com/2418872
- https://bugzilla.redhat.com/2419954
- https://errata.almalinux.org/8/ALSA-2026-1148.html