Red Hat Security Advisory: kernel security update
🔗 CVE IDs covered (3)
📋 Description
CVE-2024-36350 — kernel: information leak via transient execution vulnerability in some AMD processors CVE-2024-36357 — kernel: transient execution vulnerability in some AMD processors CVE-2025-40300 — kernel: x86/vmscape: Add conditional IBPB mitigation
🎯 Affected products200
- Red Hat Enterprise Linux AppStream (v. 9)
- Red Hat Enterprise Linux BaseOS (v. 9)
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
- Red Hat Enterprise Linux Real Time (v. 9)
- Red Hat Enterprise Linux Real Time for NFV (v. 9)
- kernel-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-0:5.14.0-570.62.1.el9_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-0:5.14.0-570.62.1.el9_6.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-0:5.14.0-570.62.1.el9_6.src as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-0:5.14.0-570.62.1.el9_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-64k-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-64k-core-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-64k-debug-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-64k-debug-core-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-64k-debug-debuginfo-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
- kernel-64k-debug-debuginfo-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-64k-debug-debuginfo-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
- kernel-64k-debug-debuginfo-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
- kernel-64k-debug-devel-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
- kernel-64k-debug-devel-matched-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
- kernel-64k-debug-modules-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-64k-debug-modules-core-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-64k-debug-modules-extra-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-64k-debuginfo-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
- kernel-64k-debuginfo-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- kernel-64k-debuginfo-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
- kernel-64k-debuginfo-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux Real Time (v. 9)
- kernel-64k-devel-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
- kernel-64k-devel-matched-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
- kernel-64k-modules-0:5.14.0-570.62.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
- +170 more not shown
✅ Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. This issue is addressed by updated AMD microcode delivered through the linux-firmware package; updating to the latest available linux-firmware package for the affected Red Hat Enterprise Linux release applies the vendor fix. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: To mitigate this issue IBPB each time the kernel returns to QEMU.
🔗 References (6)
- selfhttps://access.redhat.com/errata/RHSA-2025:19930
- externalhttps://access.redhat.com/security/updates/classification/#moderate
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2350725
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2350726
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2394627
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_19930.json