Issued:: 2026-01-26
Updated:: 2026-01-26

RHSA-2026:1143 - Important: kernel security update

Synopsis

Important: kernel security update

Type/Severity

Security Advisory Important

Topic

An update for kernel is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

kernel: Linux kernel: Use-after-free in device mapper due to race condition in zone reporting (CVE-2025-38141)
kernel: Linux kernel use-after-free in eventpoll (CVE-2025-38349)
kernel: drm/xe: Fix vm_bind_ioctl double free bug (CVE-2025-38731)
kernel: Linux kernel: vsock vulnerability may lead to memory corruption (CVE-2025-40248)
kernel: mptcp: fix race condition in mptcp_schedule_work() (CVE-2025-40258)
kernel: Linux kernel: Out-of-bounds write in Bluetooth MGMT can lead to information disclosure and denial of service (CVE-2025-40294)
kernel: net: atlantic: fix fragment overflow handling in RX path (CVE-2025-68301)
kernel: Bluetooth: hci_sock: Prevent race in socket write iter and sock bind (CVE-2025-68305)

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.

Solution

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.

Affected Products

Product	Version	Arch
Red Hat Enterprise Linux for x86_64	9	x86_64
Red Hat Enterprise Linux for Power, little endian	9	ppc64le
Red Hat Enterprise Linux for IBM z Systems	9	s390x
Red Hat Enterprise Linux for ARM 64	9	aarch64
Red Hat CodeReady Linux Builder for x86_64	9	x86_64
Red Hat CodeReady Linux Builder for Power, little endian	9	ppc64le
Red Hat CodeReady Linux Builder for IBM z Systems	9	s390x
Red Hat CodeReady Linux Builder for ARM 64	9	aarch64

Updated Packages

kernel-cross-headers-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-debuginfo-common-x86_64-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-debuginfo-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-tools-debuginfo-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-rt-debuginfo-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-cross-headers-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-rt-debug-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-devel-matched-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-modules-5.14.0-611.26.1.el9_7.x86_64.rpm
python3-perf-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-rt-debug-modules-5.14.0-611.26.1.el9_7.aarch64.rpm
libperf-debuginfo-5.14.0-611.26.1.el9_7.ppc64le.rpm
python3-perf-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-tools-libs-devel-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-rt-64k-debug-modules-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-debuginfo-5.14.0-611.26.1.el9_7.aarch64.rpm
libperf-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-rt-modules-extra-5.14.0-611.26.1.el9_7.aarch64.rpm
libperf-debuginfo-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-debug-modules-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-modules-core-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-debug-debuginfo-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-core-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-headers-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-rt-5.14.0-611.26.1.el9_7.x86_64.rpm
python3-perf-5.14.0-611.26.1.el9_7.x86_64.rpm
rtla-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-debug-debuginfo-5.14.0-611.26.1.el9_7.s390x.rpm
rtla-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-rt-debug-debuginfo-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-abi-stablelists-5.14.0-611.26.1.el9_7.noarch.rpm
kernel-devel-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-devel-matched-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-devel-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-64k-debug-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-debuginfo-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-debug-modules-extra-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-rt-debug-modules-core-5.14.0-611.26.1.el9_7.aarch64.rpm
perf-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-tools-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-zfcpdump-devel-matched-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-tools-debuginfo-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-core-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-debug-modules-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debuginfo-common-aarch64-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-debug-devel-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-devel-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-debug-devel-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-64k-debug-modules-extra-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-tools-debuginfo-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-uki-virt-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-rt-debug-modules-extra-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-zfcpdump-devel-5.14.0-611.26.1.el9_7.s390x.rpm
rv-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-rt-modules-core-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-64k-debug-devel-matched-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-core-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-rt-core-5.14.0-611.26.1.el9_7.x86_64.rpm
perf-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-64k-modules-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-core-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-modules-extra-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-64k-devel-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-devel-5.14.0-611.26.1.el9_7.aarch64.rpm
perf-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-rt-devel-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-5.14.0-611.26.1.el9_7.ppc64le.rpm
libperf-debuginfo-5.14.0-611.26.1.el9_7.aarch64.rpm
python3-perf-debuginfo-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-debug-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-rt-64k-debug-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-64k-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-debuginfo-5.14.0-611.26.1.el9_7.ppc64le.rpm
libperf-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-tools-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-zfcpdump-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-debug-modules-extra-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-64k-debug-modules-extra-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-devel-matched-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-rt-64k-modules-5.14.0-611.26.1.el9_7.aarch64.rpm
python3-perf-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debuginfo-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-rt-5.14.0-611.26.1.el9_7.aarch64.rpm
perf-debuginfo-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-tools-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-64k-modules-extra-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debuginfo-common-ppc64le-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-tools-libs-devel-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-uki-virt-addons-5.14.0-611.26.1.el9_7.x86_64.rpm
libperf-5.14.0-611.26.1.el9_7.aarch64.rpm
perf-debuginfo-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-headers-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-debug-modules-5.14.0-611.26.1.el9_7.x86_64.rpm
rtla-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-rt-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-debug-devel-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-tools-libs-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-cross-headers-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-64k-debug-devel-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-debug-modules-extra-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-modules-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-zfcpdump-modules-5.14.0-611.26.1.el9_7.s390x.rpm
rtla-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-devel-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-64k-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-devel-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-64k-debug-modules-core-5.14.0-611.26.1.el9_7.aarch64.rpm
libperf-debuginfo-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-debug-modules-core-5.14.0-611.26.1.el9_7.aarch64.rpm
python3-perf-debuginfo-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-debug-core-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-rt-modules-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-doc-5.14.0-611.26.1.el9_7.noarch.rpm
kernel-debug-modules-extra-5.14.0-611.26.1.el9_7.x86_64.rpm
libperf-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-64k-debug-devel-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-64k-debuginfo-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-devel-matched-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-core-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-headers-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-modules-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-rt-64k-debug-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-modules-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-debug-debuginfo-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-tools-5.14.0-611.26.1.el9_7.ppc64le.rpm
perf-debuginfo-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-debuginfo-common-s390x-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-64k-devel-matched-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-64k-debug-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-64k-debug-modules-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-zfcpdump-modules-core-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-debuginfo-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-modules-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-devel-matched-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-headers-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-64k-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-modules-core-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-modules-extra-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-64k-modules-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-modules-core-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-rt-debug-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-rt-debug-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-modules-extra-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-rt-debug-modules-core-5.14.0-611.26.1.el9_7.x86_64.rpm
rv-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-modules-core-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-debug-modules-core-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-tools-libs-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-debug-devel-matched-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-debug-devel-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-devel-matched-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-5.14.0-611.26.1.el9_7.aarch64.rpm
perf-debuginfo-5.14.0-611.26.1.el9_7.aarch64.rpm
perf-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-modules-extra-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-modules-extra-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-rt-64k-debug-debuginfo-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-tools-libs-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-rt-modules-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-cross-headers-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-64k-debug-modules-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debuginfo-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-64k-devel-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-rt-debug-core-5.14.0-611.26.1.el9_7.x86_64.rpm
rv-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-debug-uki-virt-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-rt-64k-modules-core-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-modules-extra-5.14.0-611.26.1.el9_7.ppc64le.rpm
python3-perf-debuginfo-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-modules-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-rt-64k-debuginfo-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-debug-modules-core-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-rt-64k-modules-extra-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-debug-devel-matched-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-debug-devel-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-tools-libs-devel-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-64k-debug-debuginfo-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-5.14.0-611.26.1.el9_7.src.rpm
kernel-debug-5.14.0-611.26.1.el9_7.ppc64le.rpm
kernel-rt-modules-5.14.0-611.26.1.el9_7.aarch64.rpm
kernel-zfcpdump-core-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-zfcpdump-debuginfo-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-zfcpdump-modules-extra-5.14.0-611.26.1.el9_7.s390x.rpm
python3-perf-debuginfo-5.14.0-611.26.1.el9_7.x86_64.rpm
rv-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-tools-debuginfo-5.14.0-611.26.1.el9_7.s390x.rpm
kernel-rt-debug-modules-5.14.0-611.26.1.el9_7.x86_64.rpm
kernel-rt-64k-5.14.0-611.26.1.el9_7.aarch64.rpm

Fixes

CVEs

References

https://access.redhat.com/security/updates/classification/#important

Additional information

The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.