Red Hat Product Errata RHSA-2026:5821 - Security Advisory
Issued:
2026-03-25
Updated:
2026-03-25

RHSA-2026:5821 - Security Advisory

Synopsis

Moderate: kernel security update

Type/Severity

Security Advisory: Moderate

Red Hat Lightspeed patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.

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: Linux kernel: RDMA/rxe use-after-free vulnerability leading to potential arbitrary code execution (CVE-2025-38024)
  • kernel: page_pool: Fix use-after-free in page_pool_recycle_in_ring (CVE-2025-38129)
  • kernel: Linux kernel ALSA USB audio driver: Buffer overflow leading to information disclosure and denial of service (CVE-2025-40269)

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

  • Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.4 x86_64
  • Red Hat Enterprise Linux Server - AUS 8.4 x86_64

Fixes

  • BZ - 2373354 - CVE-2025-38024 kernel: Linux kernel: RDMA/rxe use-after-free vulnerability leading to potential arbitrary code execution
  • BZ - 2376034 - CVE-2025-38129 kernel: page_pool: Fix use-after-free in page_pool_recycle_in_ring
  • BZ - 2419919 - CVE-2025-40269 kernel: Linux kernel ALSA USB audio driver: Buffer overflow leading to information disclosure and denial of service

Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.4

SRPM
kernel-4.18.0-305.187.1.el8_4.src.rpm SHA-256: e4569c004d8fed1f3365c41d9cc92b9ab786fbba9febb9b566feae8ca8020c03
x86_64
bpftool-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: c97518ea78358f7dee83c71f714e62ac1fea332de28e239694727afd9c8b05b1
bpftool-debuginfo-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 4cad065a2738473c4823f1a57ef17775b223aea3757b3f4b002ba57c5e01af2f
kernel-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 3af909cc8a316dd1e3d554684b77221b5b45ff117264f0877379280341215e16
kernel-abi-stablelists-4.18.0-305.187.1.el8_4.noarch.rpm SHA-256: edb30808b70663effcac2ff9ebc9f0a57a2a8f1a14441862bef297d0b60006b3
kernel-core-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 5f7f5710fc43798e9cc4045c4a237001708ef361efea7981721a2ae2cda94424
kernel-cross-headers-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 40203457b4ecfb8e41d65f80132d431a24f69f9f2509a75a1cc8a400f2f9f362
kernel-debug-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 876ec2137eecde20c2b7967bb45c20beaba3dae465c10a7641df61940f31dc16
kernel-debug-core-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: ad0dbd4e30303b4ba789e1e5a58da611e74244e5a7ebb732601c385f7483acd5
kernel-debug-debuginfo-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 3d16dbcbb9659e0f50db41dbc3fe7c8e1f875637c036a8badda4dacbf937c992
kernel-debug-devel-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 8fcc1943bbd8a921082f39e1989b8f64200505dcb379edf93383a56d93efed8f
kernel-debug-modules-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: dd4e40a51a0d2d0835941f6a3979db1322a10279a452b0e650dcdb7d10b62611
kernel-debug-modules-extra-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 9e5f9f033e83ca40369e9aee0e12b70c0699ad59efb103a96bd220d72bdb8d7a
kernel-debuginfo-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: f9a92bacd66a6dfdf5a2d0e9d8a2de382ff6c2f727299e96a4b79a116b3c37f6
kernel-debuginfo-common-x86_64-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: c19c366b9d27b0e50de5a54c95ab23d0e61d743e6f2e56870a9eb018fc69b585
kernel-devel-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: cce924e2d6e3162ba4131a839786d4b780397c1ca7cc4e7c15d3d15b3875ea40
kernel-doc-4.18.0-305.187.1.el8_4.noarch.rpm SHA-256: 4cdfc2b7c63e917e6d888623d7b2e47b4f02fc26c5623af254d123b5c8046bb9
kernel-headers-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: e5e1c2ff6188f1206f548f8d11bea0e1ed48b0d703f665adac3b0062b598cff7
kernel-modules-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 12ca1dae16133f50af7883d59a654dbebeba934021a92dba70108c0e1ea23758
kernel-modules-extra-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 715836d23dad62427f35b38f9f5810e626802490b7c0abdc2b14ede883b69a49
kernel-tools-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: df35d8833db7f08a6204361dadac3588c422a3c22a1c5b24699d764ad02688fc
kernel-tools-debuginfo-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 1ef9fc67e12260b0b24bdb577904ac751ac2a973fbbdd94786381c54a80af288
kernel-tools-libs-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 3055040ca0960bb8baa5531c4e32b4a7e731b925824f203beea259a02717f4a8
perf-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 4f9c92de34de2c79e035fc9a65b9de0b2101acf040ca9a7375aa52a4a0ab1927
perf-debuginfo-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 0553dc23c3fbc0d711fe3287179d35bb27422da38e6dc51f614eca21172509b5
python3-perf-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 04670a4c8aedb3b2189d976008b2803f838c04f6f4cf9d8acc83bb8620d8e52e
python3-perf-debuginfo-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 50bf852279b8548e8654d9edbf5c6c4ed95877bfc268bba7ee4eb66afcd879c3

Red Hat Enterprise Linux Server - AUS 8.4

SRPM
kernel-4.18.0-305.187.1.el8_4.src.rpm SHA-256: e4569c004d8fed1f3365c41d9cc92b9ab786fbba9febb9b566feae8ca8020c03
x86_64
bpftool-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: c97518ea78358f7dee83c71f714e62ac1fea332de28e239694727afd9c8b05b1
bpftool-debuginfo-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 4cad065a2738473c4823f1a57ef17775b223aea3757b3f4b002ba57c5e01af2f
kernel-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 3af909cc8a316dd1e3d554684b77221b5b45ff117264f0877379280341215e16
kernel-abi-stablelists-4.18.0-305.187.1.el8_4.noarch.rpm SHA-256: edb30808b70663effcac2ff9ebc9f0a57a2a8f1a14441862bef297d0b60006b3
kernel-core-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 5f7f5710fc43798e9cc4045c4a237001708ef361efea7981721a2ae2cda94424
kernel-cross-headers-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 40203457b4ecfb8e41d65f80132d431a24f69f9f2509a75a1cc8a400f2f9f362
kernel-debug-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 876ec2137eecde20c2b7967bb45c20beaba3dae465c10a7641df61940f31dc16
kernel-debug-core-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: ad0dbd4e30303b4ba789e1e5a58da611e74244e5a7ebb732601c385f7483acd5
kernel-debug-debuginfo-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 3d16dbcbb9659e0f50db41dbc3fe7c8e1f875637c036a8badda4dacbf937c992
kernel-debug-devel-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 8fcc1943bbd8a921082f39e1989b8f64200505dcb379edf93383a56d93efed8f
kernel-debug-modules-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: dd4e40a51a0d2d0835941f6a3979db1322a10279a452b0e650dcdb7d10b62611
kernel-debug-modules-extra-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 9e5f9f033e83ca40369e9aee0e12b70c0699ad59efb103a96bd220d72bdb8d7a
kernel-debuginfo-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: f9a92bacd66a6dfdf5a2d0e9d8a2de382ff6c2f727299e96a4b79a116b3c37f6
kernel-debuginfo-common-x86_64-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: c19c366b9d27b0e50de5a54c95ab23d0e61d743e6f2e56870a9eb018fc69b585
kernel-devel-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: cce924e2d6e3162ba4131a839786d4b780397c1ca7cc4e7c15d3d15b3875ea40
kernel-doc-4.18.0-305.187.1.el8_4.noarch.rpm SHA-256: 4cdfc2b7c63e917e6d888623d7b2e47b4f02fc26c5623af254d123b5c8046bb9
kernel-headers-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: e5e1c2ff6188f1206f548f8d11bea0e1ed48b0d703f665adac3b0062b598cff7
kernel-modules-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 12ca1dae16133f50af7883d59a654dbebeba934021a92dba70108c0e1ea23758
kernel-modules-extra-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 715836d23dad62427f35b38f9f5810e626802490b7c0abdc2b14ede883b69a49
kernel-tools-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: df35d8833db7f08a6204361dadac3588c422a3c22a1c5b24699d764ad02688fc
kernel-tools-debuginfo-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 1ef9fc67e12260b0b24bdb577904ac751ac2a973fbbdd94786381c54a80af288
kernel-tools-libs-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 3055040ca0960bb8baa5531c4e32b4a7e731b925824f203beea259a02717f4a8
perf-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 4f9c92de34de2c79e035fc9a65b9de0b2101acf040ca9a7375aa52a4a0ab1927
perf-debuginfo-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 0553dc23c3fbc0d711fe3287179d35bb27422da38e6dc51f614eca21172509b5
python3-perf-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 04670a4c8aedb3b2189d976008b2803f838c04f6f4cf9d8acc83bb8620d8e52e
python3-perf-debuginfo-4.18.0-305.187.1.el8_4.x86_64.rpm SHA-256: 50bf852279b8548e8654d9edbf5c6c4ed95877bfc268bba7ee4eb66afcd879c3

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