Issued at: 2026-09-30
Updated at: 2026-09-30
Advisory content derived from Red Hat RHSA-2026:72623, © Red Hat, Inc., used under CC BY 4.0, with modifications.
Synopsis
Important: kernel security, bug fix, and enhancement update
Description
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: ext4: fix e4b bitmap inconsistency reports (CVE-2026-45942)
* kernel: RDMA/rxe: Fix iova-to-va conversion for MR page sizes != PAGE_SIZE (CVE-2026-46325)
* kernel: crypto: af_alg - Cap AEAD AD length to 0x80000000 (CVE-2026-52972)
* kernel: fhandle: fix UAF due to unlocked ->mnt_ns read in may_decode_fh() (CVE-2026-53341)
* kernel: arm64: tlb: Flush walk cache when unsharing PMD tables (CVE-2026-63875)
* kernel: RDMA/siw: Reject MPA FPDU length underflow before signed receive math (CVE-2026-64102)
* kernel: perf/core: Detach event groups during remove_on_exec (CVE-2026-64556)
* kernel: crypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req() (CVE-2026-80522)
* kernel: perf: Reject exited events as group leaders (CVE-2026-74753)
Bug Fix(es) and Enhancement(s):
* KVM: s390: Limit adapter indicator access to mapped page [rhel-9.8.z] (JIRA:Rocky Linux-188656)
* crypto: xxhash64 should not be fips approved [rhel-9.8.z] (JIRA:Rocky Linux-256437)
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.