ALSA-2026:1661

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ALSA-2026:1661

Summary: Moderate: kernel-rt security update

Details: 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: IB/hfi1: Fix sdma.h tx->num_descs off-by-one error (CVE-2024-26766) * kernel: RDMA/core: Fix "KASAN: slab-use-after-free Read in ib_register_device" problem (CVE-2025-38022) * kernel: Linux kernel: RDMA/rxe use-after-free vulnerability leading to potential arbitrary code execution (CVE-2025-38024) * kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation (CVE-2025-38415) * kernel: Linux kernel: Denial of Service in ATM CLIP module via infinite recursion (CVE-2025-38459) * kernel: Linux kernel: Denial of Service via out-of-bounds read in USB configuration parsing (CVE-2025-39760) * kernel: mptcp: fix race condition in mptcp_schedule_work() (CVE-2025-40258) * kernel: Linux kernel: Use-after-free in proc_readdir_de() can lead to privilege escalation or denial of service. (CVE-2025-40271) * kernel: Linux kernel: Information disclosure and denial of service via out-of-bounds read in font glyph handling (CVE-2025-40322) * kernel: tcp: fix a signed-integer-overflow bug in tcp_add_backlog() (CVE-2022-50865) 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.

References: https://access.redhat.com/errata/RHSA-2026:1661, https://access.redhat.com/security/cve/CVE-2022-50865, https://access.redhat.com/security/cve/CVE-2024-26766, https://access.redhat.com/security/cve/CVE-2025-38022, https://access.redhat.com/security/cve/CVE-2025-38024, https://access.redhat.com/security/cve/CVE-2025-38415, https://access.redhat.com/security/cve/CVE-2025-38459, https://access.redhat.com/security/cve/CVE-2025-39760, https://access.redhat.com/security/cve/CVE-2025-40258, https://access.redhat.com/security/cve/CVE-2025-40271, https://access.redhat.com/security/cve/CVE-2025-40322, https://bugzilla.redhat.com/2273187, https://bugzilla.redhat.com/2373326, https://bugzilla.redhat.com/2373354, https://bugzilla.redhat.com/2383404, https://bugzilla.redhat.com/2383487, https://bugzilla.redhat.com/2394601, https://bugzilla.redhat.com/2418876, https://bugzilla.redhat.com/2419837, https://bugzilla.redhat.com/2419902, https://bugzilla.redhat.com/2426226, https://errata.almalinux.org/8/ALSA-2026-1661.html