Moderate: 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: wifi: iwlwifi: limit printed string from FW file (CVE-2025-21905) * kernel: sched/fair: Fix potential memory corruption in child_cfs_rq_on_list (CVE-2025-21919) * kernel: ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead (CVE-2022-49977) 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: wifi: iwlwifi: limit printed string from FW file (CVE-2025-21905) * kernel: sched/fair: Fix potential memory corruption in child_cfs_rq_on_list (CVE-2025-21919) * kernel: ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead (CVE-2022-49977) 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-2025:11851
- https://access.redhat.com/security/cve/CVE-2022-49977
- https://access.redhat.com/security/cve/CVE-2025-21905
- https://access.redhat.com/security/cve/CVE-2025-21919
- https://bugzilla.redhat.com/2356613
- https://bugzilla.redhat.com/2356618
- https://bugzilla.redhat.com/2373574
- https://errata.almalinux.org/8/ALSA-2025-11851.html