RHSA-2026:21556
Vulnerability Summary
Timeline
Description
Red Hat Security Advisory: kernel security update
CVSS Metrics
- v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Systems
- redhat•kernel
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-core
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-debug
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-debug-core
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-debug-debuginfo
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-debug-devel
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-debug-devel-matched
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-debug-modules
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-debug-modules-core
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-debug-modules-extra
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-debuginfo
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-devel
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-devel-matched
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-modules
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-modules-core
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-64k-modules-extra
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-abi-stablelists
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-core
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debug
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debug-core
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debug-debuginfo
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debug-devel
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debug-devel-matched
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debug-modules
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debug-modules-core
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debug-modules-extra
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debug-uki-virt
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debuginfo
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debuginfo-common-aarch64
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debuginfo-common-ppc64le
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debuginfo-common-s390x
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-debuginfo-common-x86_64
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-devel
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-devel-matched
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-doc
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-modules
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-modules-core
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-modules-extra
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-rt
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-rt-64k
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-rt-64k-core
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-rt-64k-debug
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-rt-64k-debug-core
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-rt-64k-debug-debuginfo
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-rt-64k-debug-devel
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-rt-64k-debug-modules
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-rt-64k-debug-modules-core
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-rt-64k-debug-modules-extra
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
- redhat•kernel-rt-64k-debuginfo
< 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8 | < 0:5.14.0-687.12.1.el9_8
Showing first 50 affected entries in server-rendered view.
References (98)
- https://access.redhat.com/errata/RHSA-2026:21556
- https://access.redhat.com/security/updates/classification/#important
- https://bugzilla.redhat.com/show_bug.cgi?id=2390372
- https://bugzilla.redhat.com/show_bug.cgi?id=2422699
- https://bugzilla.redhat.com/show_bug.cgi?id=2424881
- https://bugzilla.redhat.com/show_bug.cgi?id=2424886
- https://bugzilla.redhat.com/show_bug.cgi?id=2429104
- https://bugzilla.redhat.com/show_bug.cgi?id=2451218
- https://bugzilla.redhat.com/show_bug.cgi?id=2454810
- https://bugzilla.redhat.com/show_bug.cgi?id=2455334
- https://bugzilla.redhat.com/show_bug.cgi?id=2461757
- https://bugzilla.redhat.com/show_bug.cgi?id=2461759
- https://bugzilla.redhat.com/show_bug.cgi?id=2464369
- https://bugzilla.redhat.com/show_bug.cgi?id=2464455
- https://bugzilla.redhat.com/show_bug.cgi?id=2464462
- https://bugzilla.redhat.com/show_bug.cgi?id=2464476
- https://bugzilla.redhat.com/show_bug.cgi?id=2464496
- https://bugzilla.redhat.com/show_bug.cgi?id=2467014
- https://bugzilla.redhat.com/show_bug.cgi?id=2467064
- https://bugzilla.redhat.com/show_bug.cgi?id=2467210
- https://bugzilla.redhat.com/show_bug.cgi?id=2468091
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_21556.json
- https://access.redhat.com/security/cve/CVE-2025-38653
- https://www.cve.org/CVERecord?id=CVE-2025-38653
- https://nvd.nist.gov/vuln/detail/CVE-2025-38653
- https://lore.kernel.org/linux-cve-announce/2025082238-CVE-2025-38653-35ba@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-68183
- https://www.cve.org/CVERecord?id=CVE-2025-68183
- https://nvd.nist.gov/vuln/detail/CVE-2025-68183
- https://lore.kernel.org/linux-cve-announce/2025121632-CVE-2025-68183-f588@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-68366
- https://www.cve.org/CVERecord?id=CVE-2025-68366
- https://nvd.nist.gov/vuln/detail/CVE-2025-68366
- https://lore.kernel.org/linux-cve-announce/2025122459-CVE-2025-68366-b367@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-68724
- https://www.cve.org/CVERecord?id=CVE-2025-68724
- https://nvd.nist.gov/vuln/detail/CVE-2025-68724
- https://lore.kernel.org/linux-cve-announce/2025122404-CVE-2025-68724-4d3c@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-71089
- https://www.cve.org/CVERecord?id=CVE-2025-71089
- https://nvd.nist.gov/vuln/detail/CVE-2025-71089
- https://lore.kernel.org/linux-cve-announce/2026011341-CVE-2025-71089-a642@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-23392
- https://www.cve.org/CVERecord?id=CVE-2026-23392
- https://nvd.nist.gov/vuln/detail/CVE-2026-23392
- https://lore.kernel.org/linux-cve-announce/2026032548-CVE-2026-23392-fd9d@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-23455
- https://www.cve.org/CVERecord?id=CVE-2026-23455
- https://nvd.nist.gov/vuln/detail/CVE-2026-23455
- https://lore.kernel.org/linux-cve-announce/2026040317-CVE-2026-23455-f045@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-31408
- https://www.cve.org/CVERecord?id=CVE-2026-31408
- https://nvd.nist.gov/vuln/detail/CVE-2026-31408
- https://lore.kernel.org/linux-cve-announce/2026040629-CVE-2026-31408-9f0f@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-31684
- https://www.cve.org/CVERecord?id=CVE-2026-31684
- https://nvd.nist.gov/vuln/detail/CVE-2026-31684
- https://lore.kernel.org/linux-cve-announce/2026042545-CVE-2026-31684-6974@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-31685
- https://www.cve.org/CVERecord?id=CVE-2026-31685
- https://nvd.nist.gov/vuln/detail/CVE-2026-31685
- https://lore.kernel.org/linux-cve-announce/2026042545-CVE-2026-31685-3fcc@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-31709
- https://www.cve.org/CVERecord?id=CVE-2026-31709
- https://nvd.nist.gov/vuln/detail/CVE-2026-31709
- https://lore.kernel.org/linux-cve-announce/2026050122-CVE-2026-31709-335b@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43020
- https://www.cve.org/CVERecord?id=CVE-2026-43020
- https://nvd.nist.gov/vuln/detail/CVE-2026-43020
- https://lore.kernel.org/linux-cve-announce/2026050157-CVE-2026-43020-3561@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43023
- https://www.cve.org/CVERecord?id=CVE-2026-43023
- https://nvd.nist.gov/vuln/detail/CVE-2026-43023
- https://lore.kernel.org/linux-cve-announce/2026050158-CVE-2026-43023-19eb@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43027
- https://www.cve.org/CVERecord?id=CVE-2026-43027
- https://nvd.nist.gov/vuln/detail/CVE-2026-43027
- https://lore.kernel.org/linux-cve-announce/2026050159-CVE-2026-43027-5711@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43051
- https://www.cve.org/CVERecord?id=CVE-2026-43051
- https://nvd.nist.gov/vuln/detail/CVE-2026-43051
- https://lore.kernel.org/linux-cve-announce/2026050107-CVE-2026-43051-0d15@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43110
- https://www.cve.org/CVERecord?id=CVE-2026-43110
- https://nvd.nist.gov/vuln/detail/CVE-2026-43110
- https://lore.kernel.org/linux-cve-announce/2026050624-CVE-2026-43110-7309@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43158
- https://www.cve.org/CVERecord?id=CVE-2026-43158
- https://nvd.nist.gov/vuln/detail/CVE-2026-43158
- https://lore.kernel.org/linux-cve-announce/2026050631-CVE-2026-43158-cc20@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43190
- https://www.cve.org/CVERecord?id=CVE-2026-43190
- https://nvd.nist.gov/vuln/detail/CVE-2026-43190
- https://lore.kernel.org/linux-cve-announce/2026050642-CVE-2026-43190-f1c9@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43303
- https://www.cve.org/CVERecord?id=CVE-2026-43303
- https://nvd.nist.gov/vuln/detail/CVE-2026-43303
- https://lore.kernel.org/linux-cve-announce/2026050857-CVE-2026-43303-dc12@gregkh/T