Issued:: 2026-05-19
Updated:: 2026-05-19

RHSA-2026:18587 - Moderate: kernel security update

Synopsis

Moderate: kernel security update

Type/Severity

Security Advisory Moderate

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 Moderate. 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: bonding: check xdp prog when set bond mode (CVE-2025-22105)
kernel: block: fix resource leak in blk_register_queue() error path (CVE-2025-37980)
kernel: dmaengine: idxd: fix memory leak in error handling path of idxd_alloc (CVE-2025-38015)
kernel: espintcp: remove encap socket caching to avoid reference leak (CVE-2025-38097)
kernel: bpf: fix ktls panic with sockmap (CVE-2025-38166)
kernel: bpf: Do not include stack ptr register in precision backtracking bookkeeping (CVE-2025-38279)
kernel: nfs: Clean up /proc/net/rpc/nfs when nfs_fs_proc_net_init() fails (CVE-2025-38400)
kernel: nvmet: fix memory leak of bio integrity (CVE-2025-38405)
kernel: netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto() (CVE-2025-38441)
kernel: net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime (CVE-2025-38470)
kernel: fs: writeback: fix use-after-free in __mark_inode_dirty() (CVE-2025-39866)
kernel: dm: fix NULL pointer dereference in __dm_suspend() (CVE-2025-40134)
kernel: wifi: mac80211_hwsim: fix typo in frequency notification (CVE-2026-23040)
kernel: Linux kernel: Denial of service and memory corruption in RDMA umad (CVE-2026-23243)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9 Release Notes linked from 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 x86_64 - Update Services for SAP Solutions	9.8	x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support	9.8	x86_64
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle	9.8	x86_64
Red Hat Enterprise Linux for Power, little endian	9	ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Update Support	9.8	ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle	9.8	ppc64le
Red Hat Enterprise Linux for IBM z Systems	9	s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support	9.8	s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle	9.8	s390x
Red Hat Enterprise Linux for IBM z Systems - 4 years of updates	9.8	s390x
Red Hat Enterprise Linux for ARM 64	9	aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support	9.8	aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle	9.8	aarch64
Red Hat Enterprise Linux for ARM 64 - 4 years of updates	9.8	aarch64
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions	9.8	ppc64le
Red Hat CodeReady Linux Builder for x86_64	9	x86_64
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support	9.8	x86_64
Red Hat CodeReady Linux Builder for Power, little endian	9	ppc64le
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support	9.8	ppc64le
Red Hat CodeReady Linux Builder for IBM z Systems	9	s390x
Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support	9.8	s390x
Red Hat CodeReady Linux Builder for ARM 64	9	aarch64
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support	9.8	aarch64

Updated Packages

kernel-64k-devel-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-64k-debug-devel-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-debug-modules-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-rt-debug-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-debug-devel-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-rt-modules-5.14.0-687.5.1.el9_8.x86_64.rpm
perf-debuginfo-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-tools-libs-devel-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-debug-debuginfo-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-debuginfo-common-ppc64le-5.14.0-687.5.1.el9_8.ppc64le.rpm
python3-perf-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-debug-devel-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-debug-core-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-devel-matched-5.14.0-687.5.1.el9_8.x86_64.rpm
rtla-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-rt-debuginfo-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-cross-headers-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-rt-64k-modules-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-debug-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-64k-debug-modules-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-modules-extra-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-debug-modules-extra-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-64k-debuginfo-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-64k-modules-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-debug-modules-extra-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-uki-virt-addons-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-debuginfo-common-x86_64-5.14.0-687.5.1.el9_8.x86_64.rpm
perf-debuginfo-5.14.0-687.5.1.el9_8.aarch64.rpm
rtla-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-64k-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-modules-core-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-rt-64k-devel-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-modules-extra-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-cross-headers-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-devel-matched-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-64k-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-64k-debug-modules-extra-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-tools-debuginfo-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-debug-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-modules-core-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-tools-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-zfcpdump-modules-5.14.0-687.5.1.el9_8.s390x.rpm
libperf-debuginfo-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-tools-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-64k-modules-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-modules-extra-5.14.0-687.5.1.el9_8.aarch64.rpm
python3-perf-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-zfcpdump-modules-core-5.14.0-687.5.1.el9_8.s390x.rpm
python3-perf-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-5.14.0-687.5.1.el9_8.src.rpm
kernel-debug-devel-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-debug-devel-matched-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-debuginfo-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-rt-debug-core-5.14.0-687.5.1.el9_8.aarch64.rpm
libperf-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-abi-stablelists-5.14.0-687.5.1.el9_8.noarch.rpm
libperf-debuginfo-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-debug-devel-matched-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-tools-libs-devel-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-rt-core-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-debuginfo-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-zfcpdump-modules-extra-5.14.0-687.5.1.el9_8.s390x.rpm
perf-5.14.0-687.5.1.el9_8.ppc64le.rpm
python3-perf-debuginfo-5.14.0-687.5.1.el9_8.x86_64.rpm
libperf-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-rt-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-rt-debug-modules-5.14.0-687.5.1.el9_8.aarch64.rpm
perf-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-debug-debuginfo-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-cross-headers-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-rt-64k-debug-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-debug-devel-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-debuginfo-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-debug-modules-extra-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-modules-extra-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-rt-64k-debug-modules-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-modules-core-5.14.0-687.5.1.el9_8.x86_64.rpm
rv-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-core-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-rt-devel-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-debug-modules-core-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-tools-debuginfo-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-zfcpdump-debuginfo-5.14.0-687.5.1.el9_8.s390x.rpm
libperf-debuginfo-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-debug-devel-matched-5.14.0-687.5.1.el9_8.x86_64.rpm
perf-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-64k-debug-5.14.0-687.5.1.el9_8.aarch64.rpm
libperf-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-rt-64k-debug-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-debug-devel-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-debug-modules-core-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-debuginfo-common-s390x-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-tools-libs-5.14.0-687.5.1.el9_8.ppc64le.rpm
perf-debuginfo-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-64k-debug-debuginfo-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-doc-5.14.0-687.5.1.el9_8.noarch.rpm
kernel-devel-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-modules-extra-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-debug-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-rt-modules-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-debug-core-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-tools-debuginfo-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-rt-debug-debuginfo-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-debuginfo-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-debug-core-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-debug-core-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-tools-libs-devel-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-zfcpdump-devel-matched-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-debug-5.14.0-687.5.1.el9_8.s390x.rpm
libperf-debuginfo-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-rt-64k-debuginfo-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-64k-modules-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-64k-devel-matched-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-64k-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-headers-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-rt-64k-debug-modules-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-devel-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-debuginfo-common-aarch64-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-64k-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-debug-modules-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-rt-debug-devel-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-debug-modules-extra-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-core-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-64k-debug-devel-5.14.0-687.5.1.el9_8.aarch64.rpm
python3-perf-debuginfo-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-uki-virt-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-modules-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-debug-modules-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-devel-matched-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-headers-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-core-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-debug-modules-core-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-headers-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-64k-modules-extra-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-core-5.14.0-687.5.1.el9_8.aarch64.rpm
perf-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-debug-5.14.0-687.5.1.el9_8.x86_64.rpm
perf-debuginfo-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-debuginfo-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-modules-extra-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-debug-modules-5.14.0-687.5.1.el9_8.x86_64.rpm
rv-5.14.0-687.5.1.el9_8.s390x.rpm
libperf-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-devel-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-zfcpdump-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-modules-5.14.0-687.5.1.el9_8.ppc64le.rpm
rv-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-64k-debug-modules-extra-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-debug-modules-extra-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-64k-debug-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-devel-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-tools-debuginfo-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-rt-debug-modules-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-modules-core-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-zfcpdump-core-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-tools-libs-5.14.0-687.5.1.el9_8.aarch64.rpm
python3-perf-debuginfo-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-debug-debuginfo-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-debug-uki-virt-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-debug-debuginfo-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-cross-headers-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-debug-debuginfo-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-debug-devel-matched-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-rt-64k-debug-debuginfo-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-modules-core-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-rt-debug-modules-extra-5.14.0-687.5.1.el9_8.x86_64.rpm
python3-perf-debuginfo-5.14.0-687.5.1.el9_8.s390x.rpm
rv-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-64k-debug-modules-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-debug-modules-core-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-64k-debug-devel-matched-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-headers-5.14.0-687.5.1.el9_8.ppc64le.rpm
rtla-5.14.0-687.5.1.el9_8.s390x.rpm
rtla-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-modules-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-tools-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-debug-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-devel-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-64k-modules-extra-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-tools-libs-5.14.0-687.5.1.el9_8.x86_64.rpm
kernel-modules-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-debug-modules-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-tools-5.14.0-687.5.1.el9_8.ppc64le.rpm
kernel-zfcpdump-devel-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-debug-modules-core-5.14.0-687.5.1.el9_8.aarch64.rpm
python3-perf-5.14.0-687.5.1.el9_8.aarch64.rpm
kernel-devel-matched-5.14.0-687.5.1.el9_8.s390x.rpm
kernel-modules-5.14.0-687.5.1.el9_8.s390x.rpm

Fixes

CVEs

References

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.