- Issued:
- 2026-05-20
- Updated:
- 2026-05-20
RHSA-2026:19569 - 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 10.
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: net: af_can: do not leave a dangling sk pointer in can_create() (CVE-2024-56603)
-
kernel: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit (CVE-2025-39766)
-
kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)
-
kernel: scsi: qla2xxx: Fix improper freeing of purex item (CVE-2025-68741)
-
kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270)
-
kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)
-
kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)
-
kernel: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold (CVE-2026-31408)
-
kernel: usbip: validate number_of_packets in usbip_pack_ret_submit() (CVE-2026-31607)
-
kernel: RDMA/umem: Fix double dma_buf_unpin in failure path (CVE-2026-43128)
-
kernel: "Dirty Frag" is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284)
-
kernel: "Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)
-
kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)
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 | 10 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 10.2 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Life Cycle | 10.2 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - 4 years of updates | 10.2 | x86_64 |
| Red Hat Enterprise Linux for Power, little endian | 10 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 10.2 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle | 10.2 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - 4 years of support | 10.2 | ppc64le |
| Red Hat Enterprise Linux for IBM z Systems | 10 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 10.2 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle | 10.2 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - 4 years of updates | 10.2 | s390x |
| Red Hat Enterprise Linux for ARM 64 | 10 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Update Support | 10.2 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle | 10.2 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - 4 years of updates | 10.2 | aarch64 |
| Red Hat CodeReady Linux Builder for x86_64 | 10 | x86_64 |
| Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support | 10.2 | x86_64 |
| Red Hat CodeReady Linux Builder for Power, little endian | 10 | ppc64le |
| Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support | 10.2 | ppc64le |
| Red Hat CodeReady Linux Builder for IBM z Systems | 10 | s390x |
| Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support | 10.2 | s390x |
| Red Hat CodeReady Linux Builder for ARM 64 | 10 | aarch64 |
| Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support | 10.2 | aarch64 |
Updated Packages
- kernel-headers-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-rt-modules-extra-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-debuginfo-6.12.0-211.16.1.el10_2.x86_64.rpm
- perf-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-cross-headers-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debug-modules-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-cross-headers-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-rt-debug-modules-core-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-modules-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-debug-modules-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-tools-6.12.0-211.16.1.el10_2.aarch64.rpm
- perf-debuginfo-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-core-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-debuginfo-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-modules-core-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-rt-64k-devel-6.12.0-211.16.1.el10_2.aarch64.rpm
- rtla-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-uki-virt-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-rt-core-6.12.0-211.16.1.el10_2.x86_64.rpm
- rtla-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-zfcpdump-devel-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-debug-debuginfo-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-rt-64k-modules-extra-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debuginfo-common-ppc64le-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-rt-64k-modules-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-64k-devel-matched-6.12.0-211.16.1.el10_2.aarch64.rpm
- rv-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-zfcpdump-debuginfo-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-modules-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-64k-modules-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-debug-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-debug-debuginfo-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-64k-debug-debuginfo-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-64k-debug-modules-extra-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-zfcpdump-modules-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-debug-modules-core-6.12.0-211.16.1.el10_2.s390x.rpm
- rv-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-core-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-rt-64k-debug-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-64k-debug-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debug-devel-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-rt-64k-debug-devel-6.12.0-211.16.1.el10_2.aarch64.rpm
- perf-debuginfo-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-modules-extra-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-debug-devel-matched-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-devel-matched-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-64k-debug-modules-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-headers-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-modules-core-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-rt-64k-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-64k-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- perf-6.12.0-211.16.1.el10_2.ppc64le.rpm
- libperf-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-tools-libs-devel-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-zfcpdump-modules-extra-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-debug-modules-extra-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debug-uki-virt-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-headers-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-modules-extra-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- perf-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-tools-libs-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-headers-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-debug-debuginfo-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-tools-debuginfo-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-cross-headers-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-rt-debug-modules-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-zfcpdump-modules-core-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-debug-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-debuginfo-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-devel-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-modules-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-rt-devel-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-6.12.0-211.16.1.el10_2.src.rpm
- kernel-debug-modules-core-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-modules-extra-matched-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-rt-64k-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-64k-debuginfo-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-abi-stablelists-6.12.0-211.16.1.el10_2.noarch.rpm
- kernel-debug-modules-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-debug-devel-matched-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-rt-debug-modules-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-devel-6.12.0-211.16.1.el10_2.aarch64.rpm
- libperf-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-uki-virt-addons-6.12.0-211.16.1.el10_2.x86_64.rpm
- libperf-debuginfo-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-debug-core-6.12.0-211.16.1.el10_2.x86_64.rpm
- perf-debuginfo-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-devel-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-modules-core-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-tools-debuginfo-6.12.0-211.16.1.el10_2.ppc64le.rpm
- perf-debuginfo-6.12.0-211.16.1.el10_2.s390x.rpm
- python3-perf-6.12.0-211.16.1.el10_2.x86_64.rpm
- python3-perf-debuginfo-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-debug-debuginfo-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debug-modules-core-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-rt-debug-core-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-modules-extra-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-tools-libs-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-rt-modules-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-modules-extra-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-debug-debuginfo-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-64k-debug-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debug-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-doc-6.12.0-211.16.1.el10_2.noarch.rpm
- kernel-modules-extra-matched-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-core-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-modules-extra-matched-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-debug-modules-extra-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-rt-64k-debuginfo-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-64k-debug-devel-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-64k-modules-extra-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-devel-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-modules-extra-matched-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-rt-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-debug-modules-extra-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-modules-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-tools-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-debug-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-uki-virt-6.12.0-211.16.1.el10_2.aarch64.rpm
- libperf-debuginfo-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-debug-modules-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-devel-matched-6.12.0-211.16.1.el10_2.x86_64.rpm
- libperf-debuginfo-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-devel-matched-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-debuginfo-common-x86_64-6.12.0-211.16.1.el10_2.x86_64.rpm
- libperf-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-debuginfo-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-zfcpdump-core-6.12.0-211.16.1.el10_2.s390x.rpm
- python3-perf-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-tools-libs-6.12.0-211.16.1.el10_2.aarch64.rpm
- python3-perf-debuginfo-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debug-modules-extra-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-debuginfo-6.12.0-211.16.1.el10_2.aarch64.rpm
- python3-perf-debuginfo-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-debug-devel-6.12.0-211.16.1.el10_2.ppc64le.rpm
- rv-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-64k-devel-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-64k-debug-modules-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-64k-modules-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debug-devel-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-devel-matched-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-modules-core-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-devel-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-rt-debug-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-debug-devel-6.12.0-211.16.1.el10_2.x86_64.rpm
- perf-6.12.0-211.16.1.el10_2.x86_64.rpm
- python3-perf-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-64k-debug-devel-matched-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-modules-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-64k-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debug-devel-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-modules-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debug-devel-matched-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-tools-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-rt-64k-debug-debuginfo-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-debug-modules-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-debug-modules-extra-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-rt-debug-devel-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-tools-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-debug-core-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-tools-debuginfo-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-tools-libs-devel-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debug-modules-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-uki-virt-addons-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-64k-debug-modules-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debuginfo-common-s390x-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-modules-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-rt-64k-debug-modules-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-zfcpdump-6.12.0-211.16.1.el10_2.s390x.rpm
- rtla-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-cross-headers-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-tools-libs-devel-6.12.0-211.16.1.el10_2.ppc64le.rpm
- rv-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-rt-debug-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-rt-debuginfo-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debuginfo-common-aarch64-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-64k-modules-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-tools-debuginfo-6.12.0-211.16.1.el10_2.s390x.rpm
- python3-perf-6.12.0-211.16.1.el10_2.ppc64le.rpm
- python3-perf-debuginfo-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-debug-devel-matched-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debug-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-debug-core-6.12.0-211.16.1.el10_2.s390x.rpm
- kernel-rt-debug-modules-extra-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-64k-debug-modules-extra-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-64k-debug-core-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-rt-modules-extra-6.12.0-211.16.1.el10_2.x86_64.rpm
- kernel-zfcpdump-devel-matched-6.12.0-211.16.1.el10_2.s390x.rpm
- rtla-6.12.0-211.16.1.el10_2.s390x.rpm
- libperf-6.12.0-211.16.1.el10_2.ppc64le.rpm
- libperf-debuginfo-6.12.0-211.16.1.el10_2.aarch64.rpm
- kernel-debug-6.12.0-211.16.1.el10_2.ppc64le.rpm
- kernel-rt-debug-debuginfo-6.12.0-211.16.1.el10_2.aarch64.rpm
Fixes
- This content is not included.BZ - 2334439
- This content is not included.BZ - 2394648
- This content is not included.BZ - 2424886
- This content is not included.BZ - 2425046
- This content is not included.BZ - 2448745
- This content is not included.BZ - 2453803
- This content is not included.BZ - 2454844
- This content is not included.BZ - 2455334
- This content is not included.BZ - 2461521
- This content is not included.BZ - 2467144
- This content is not included.BZ - 2467771
- This content is not included.BZ - 2477015
- This content is not included.BZ - 2477802
- This content is not included.RHEL-169354
CVEs
- CVE-2024-56603
- CVE-2025-39766
- CVE-2025-68724
- CVE-2025-68741
- CVE-2026-23270
- CVE-2026-23401
- CVE-2026-31402
- CVE-2026-31408
- CVE-2026-31607
- CVE-2026-43128
- CVE-2026-43284
- CVE-2026-46300
- CVE-2026-46333
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.