Findings

RLSA-2026:81406

Important: kernel security, bug fix, and enhancement update

Published Oct 14, 2026 · updated Oct 14, 2026

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: thermal: core: Fix thermal zone device registration error path (CVE-2026-43332) * kernel: macsec: fix replay protection at XPN lower-PN wrap (CVE-2026-63925) * kernel: i2c: stub: Reject I2C block transfers with invalid length (CVE-2026-64191) * kernel: Kernel SMB client: Double-free vulnerability allows remote denial of service or privilege escalation (CVE-2026-64385) * kernel: bpf: Support for hardening against JIT spraying (CVE-2026-64508) * kernel: x86/bugs: Enable IBPB flush on BPF JIT allocation (CVE-2026-64507) * kernel: openvswitch: fix GSO userspace truncation underflow (CVE-2026-68123) * kernel: cifs: validate DFS referral string offsets (CVE-2026-72318) * kernel: KVM: arm64: vgic: Check the interrupt is still ours before migrating it (CVE-2026-72289) * kernel: af_unix: Unlink scc_entry in unix_del_edge() (CVE-2026-80521) * kernel: nvmet-auth: Synchronize timeout work during SQ teardown (CVE-2026-89970) Bug Fix(es) and Enhancement(s): * net/tls backports for 10.2 (JIRA:Rocky Linux-275027) 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.