Issued:: 2026-07-01
Updated:: 2026-07-01

RHSA-2026:34094 - Important: kernel security, bug fix, and enhancement update

Synopsis

Important: kernel security, bug fix, and enhancement update

Type/Severity

Security Advisory Important

Topic

An update for kernel is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.

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: netfilter: conntrack: clamp maximum hashtable size to INT_MAX (CVE-2025-21648)
kernel: cachestat: fix page cache statistics permission checking (CVE-2025-21691)
kernel: ALSA: aloop: Fix racy access at PCM trigger (CVE-2026-23191)
kernel: mptcp: fix slab-use-after-free in __inet_lookup_established (CVE-2026-31669)
kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup (CVE-2026-43027)
kernel: RDMA/umem: Fix double dma_buf_unpin in failure path (CVE-2026-43128)
kernel: tcp: fix potential race in tcp_v6_syn_recv_sock() (CVE-2026-43198)
kernel: dlm: validate length in dlm_search_rsb_tree (CVE-2026-43125)
kernel: netfilter: flowtable: strictly check for maximum number of actions (CVE-2026-43329)
kernel: scsi: qla2xxx: Completely fix fcport double free (CVE-2026-43414)
kernel: ipv6: rpl: reserve mac_len headroom when recompressed SRH grows (CVE-2026-43501)
kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop (CVE-2026-46090)
kernel: RDMA/rxe: Fix double free in rxe_srq_from_init (CVE-2026-45852)
kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() (CVE-2026-46181)
kernel: sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL (CVE-2026-46227)
kernel: RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() (CVE-2026-46176)
kernel: exit: prevent preemption of oopsing TASK_DEAD task (CVE-2026-46173)
kernel: netfilter: nft_inner: Fix IPv6 inner_thoff desync (CVE-2026-46244)

Bug Fix(es) and Enhancement(s):

iavf: during POD churn vlan filters may not be added for a vlan interface, spoofchk drops subsequent packets [rhel-9.6.z] (JIRA:RHEL-172991)
[rhel-9] WARNING: possible recursive locking detected - vmd_enable_domain+0x757/0x910 [rhel-9.6.z] (JIRA:RHEL-174469)
RHEL9.4 - s390/mm: Add missing secure storage access fixups [rhel-9.6.z] (JIRA:RHEL-183316)
drm/mgag200: 300 ms busy loop [rhel-9.6.z] (JIRA:RHEL-150177)

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 - Update Services for SAP Solutions	9.6	x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support	9.6	x86_64
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle	9.6	x86_64
Red Hat Enterprise Linux for Power, little endian - Extended Update Support	9.6	ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle	9.6	ppc64le
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support	9.6	s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle	9.6	s390x
Red Hat Enterprise Linux for IBM z Systems - 4 years of updates	9.6	s390x
Red Hat Enterprise Linux for ARM 64 - Extended Update Support	9.6	aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle	9.6	aarch64
Red Hat Enterprise Linux for ARM 64 - 4 years of updates	9.6	aarch64
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions	9.6	ppc64le
Red Hat Enterprise Linux Server - AUS	9.6	x86_64
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support	9.6	x86_64
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support	9.6	ppc64le
Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support	9.6	s390x
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support	9.6	aarch64

Updated Packages

kernel-devel-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-debuginfo-common-s390x-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-modules-extra-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-rt-debug-modules-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-64k-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debuginfo-common-ppc64le-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-tools-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-tools-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-rt-modules-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-tools-debuginfo-5.14.0-570.125.1.el9_6.aarch64.rpm
libperf-5.14.0-570.125.1.el9_6.x86_64.rpm
libperf-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-rt-debug-modules-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-64k-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-64k-debug-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-kvm-5.14.0-570.125.1.el9_6.x86_64.rpm
perf-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-64k-debug-debuginfo-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-modules-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-64k-debug-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-tools-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debuginfo-common-aarch64-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-devel-matched-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-64k-debug-devel-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-headers-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-rt-debug-devel-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-tools-debuginfo-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-tools-libs-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-rt-debug-modules-extra-5.14.0-570.125.1.el9_6.aarch64.rpm
libperf-debuginfo-5.14.0-570.125.1.el9_6.s390x.rpm
perf-debuginfo-5.14.0-570.125.1.el9_6.ppc64le.rpm
python3-perf-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-64k-debug-modules-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-debuginfo-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-tools-libs-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-devel-matched-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-debuginfo-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-devel-matched-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-modules-core-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-modules-core-5.14.0-570.125.1.el9_6.s390x.rpm
python3-perf-debuginfo-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-cross-headers-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-debug-core-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-tools-libs-devel-5.14.0-570.125.1.el9_6.aarch64.rpm
rtla-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-debug-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-devel-matched-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-rt-devel-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-devel-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-tools-debuginfo-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-rt-debug-modules-core-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debug-uki-virt-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-tools-libs-devel-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-zfcpdump-modules-extra-5.14.0-570.125.1.el9_6.s390x.rpm
perf-debuginfo-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-debug-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-modules-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-core-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-debug-devel-matched-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-devel-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-tools-libs-devel-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debuginfo-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-rt-debug-debuginfo-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-modules-core-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-zfcpdump-core-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-64k-debug-modules-extra-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-debuginfo-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-core-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debug-modules-5.14.0-570.125.1.el9_6.x86_64.rpm
rtla-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-rt-64k-debug-modules-5.14.0-570.125.1.el9_6.aarch64.rpm
rtla-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-rt-core-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-64k-devel-matched-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-modules-5.14.0-570.125.1.el9_6.aarch64.rpm
rv-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-rt-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-64k-debuginfo-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-modules-extra-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-5.14.0-570.125.1.el9_6.x86_64.rpm
libperf-debuginfo-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-rt-64k-debug-debuginfo-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-modules-extra-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-headers-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-modules-extra-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-tools-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-debug-devel-matched-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-rt-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-rt-64k-debug-devel-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-debug-devel-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-debug-kvm-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-64k-modules-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-zfcpdump-debuginfo-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-modules-extra-5.14.0-570.125.1.el9_6.aarch64.rpm
libperf-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-tools-debuginfo-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-core-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-64k-debug-modules-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-modules-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-devel-matched-5.14.0-570.125.1.el9_6.x86_64.rpm
perf-5.14.0-570.125.1.el9_6.s390x.rpm
perf-debuginfo-5.14.0-570.125.1.el9_6.aarch64.rpm
python3-perf-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debug-5.14.0-570.125.1.el9_6.s390x.rpm
python3-perf-debuginfo-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-zfcpdump-devel-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-rt-debug-modules-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-modules-extra-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-64k-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-modules-extra-5.14.0-570.125.1.el9_6.ppc64le.rpm
perf-debuginfo-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debug-core-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-5.14.0-570.125.1.el9_6.src.rpm
kernel-64k-modules-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-modules-5.14.0-570.125.1.el9_6.s390x.rpm
libperf-debuginfo-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-5.14.0-570.125.1.el9_6.x86_64.rpm
python3-perf-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-64k-debug-devel-matched-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-debug-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-64k-debug-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-modules-core-5.14.0-570.125.1.el9_6.x86_64.rpm
perf-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-cross-headers-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debug-devel-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-devel-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-cross-headers-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-debug-modules-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-modules-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-rt-debug-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-tools-libs-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-64k-devel-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-debuginfo-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-rt-64k-modules-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-headers-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-devel-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-modules-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-rt-64k-modules-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-devel-matched-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-abi-stablelists-5.14.0-570.125.1.el9_6.noarch.rpm
kernel-modules-5.14.0-570.125.1.el9_6.s390x.rpm
python3-perf-debuginfo-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-debug-modules-extra-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debuginfo-common-x86_64-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-zfcpdump-modules-core-5.14.0-570.125.1.el9_6.s390x.rpm
rv-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-zfcpdump-modules-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-rt-modules-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debug-core-5.14.0-570.125.1.el9_6.s390x.rpm
rv-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-cross-headers-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-debug-modules-extra-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-uki-virt-addons-5.14.0-570.125.1.el9_6.x86_64.rpm
libperf-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-devel-5.14.0-570.125.1.el9_6.aarch64.rpm
rv-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-64k-debug-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-uki-virt-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debug-modules-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-debuginfo-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-headers-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-debug-modules-extra-5.14.0-570.125.1.el9_6.s390x.rpm
rtla-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-debuginfo-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-debug-modules-core-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-64k-modules-extra-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debuginfo-5.14.0-570.125.1.el9_6.s390x.rpm
python3-perf-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-rt-64k-devel-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-devel-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debug-5.14.0-570.125.1.el9_6.aarch64.rpm
python3-perf-debuginfo-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debug-debuginfo-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-64k-debug-modules-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-debug-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-rt-debug-core-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-zfcpdump-5.14.0-570.125.1.el9_6.s390x.rpm
kernel-zfcpdump-devel-matched-5.14.0-570.125.1.el9_6.s390x.rpm
perf-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-rt-64k-modules-extra-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-modules-core-5.14.0-570.125.1.el9_6.ppc64le.rpm
kernel-rt-64k-debug-modules-extra-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-core-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-doc-5.14.0-570.125.1.el9_6.noarch.rpm
kernel-rt-modules-extra-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-debug-devel-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-64k-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debug-modules-core-5.14.0-570.125.1.el9_6.x86_64.rpm
kernel-rt-debug-debuginfo-5.14.0-570.125.1.el9_6.aarch64.rpm
libperf-debuginfo-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-rt-64k-debuginfo-5.14.0-570.125.1.el9_6.aarch64.rpm
kernel-debuginfo-5.14.0-570.125.1.el9_6.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 Security Contacts and Procedures.
Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.