RedHat Linux Kernel Multiple Vulnerabilities

Last Update Date: 29 May 2026 Release Date: 8 May 2026 24466 Views

RISK: Medium Risk

TYPE: Operating Systems - Linux

Multiple vulnerabilities were identified in RedHat Linux Kernel. A remote attacker could exploit some of these vulnerabilities to trigger denial of service condition, elevation of privilege, sensitive information disclosure, remote code execution and data manipulation on the targeted system.

Note:

CVE-2026-31431 is being exploited in the wild. Copy Fail (CVE-2026-31431) is a logic bug in the Linux kernel's authencesn cryptographic template. It lets an unprivileged local user trigger a deterministic, controlled 4-byte write into the page cache of any readable file on the system. A single 732-byte Python script can edit a setuid binary and obtain root on essentially all Linux distributions shipped since 2017.

CVE-2026-43284 and CVE-2026-43500 (commonly known as "Dirty Frag") are being scattered exploited. If exploited, these vulnerabilities could allow a local user with low privileges to gain elevated system (root) permissions.

Proof of Concept exploit code is publicly available for CVE-2026-46333. This vulnerability is a Linux kernel race condition during process exit that allows a local unprivileged user to read root-only sensitive files. If exploited, it may disclose data such as SSH host private keys or /etc/shadow contents.

[Updated on 2026-05-12]

Updated Description, System / Technologies affected, Solutions, Vulnerability Identifier, Solutions and Related Links.

[Updated on 2026-05-13]

Updated Solutions and Related Links.

[Updated on 2026-05-19]

Updated Solutions and Related Links.

[Updated on 2026-05-22]

Updated Description, Impact, System / Technologies affected, Vulnerability Identifier, Solutions and Related Links.

[Updated on 2026-05-29]

Updated Vulnerability Identifier, Solutions and Related Links.

Impact

Denial of Service
Elevation of Privilege
Information Disclosure
Remote Code Execution
Data Manipulation

System / Technologies affected

Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 10.0 aarch64
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 9.4 aarch64
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 9.6 aarch64
Red Hat CodeReady Linux Builder for ARM 64 10 aarch64
Red Hat CodeReady Linux Builder for ARM 64 8 aarch64
Red Hat CodeReady Linux Builder for ARM 64 9 aarch64
Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 10.0 s390x
Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 9.4 s390x
Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 9.6 s390x
Red Hat CodeReady Linux Builder for IBM z Systems 10 s390x
Red Hat CodeReady Linux Builder for IBM z Systems 9 s390x
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 10.0 ppc64le
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 9.4 ppc64le
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 9.6 ppc64le
Red Hat CodeReady Linux Builder for Power, little endian 10 ppc64le
Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le
Red Hat CodeReady Linux Builder for Power, little endian 9 ppc64le
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 10.0 x86_64
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 9.4 x86_64
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 9.6 x86_64
Red Hat CodeReady Linux Builder for x86_64 10 x86_64
Red Hat CodeReady Linux Builder for x86_64 8 x86_64
Red Hat CodeReady Linux Builder for x86_64 9 x86_64
Red Hat Enterprise Linux Server - AUS 8.4 x86_64
Red Hat Enterprise Linux Server - AUS 8.6 x86_64
Red Hat Enterprise Linux Server - AUS 9.2 x86_64
Red Hat Enterprise Linux Server - AUS 9.4 x86_64
Red Hat Enterprise Linux Server - AUS 9.6 x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64
Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le
Red Hat Enterprise Linux Server - TUS 8.6 x86_64
Red Hat Enterprise Linux Server - TUS 8.8 x86_64
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6 ppc64le
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8 ppc64le
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.0 ppc64le
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.2 ppc64le
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 ppc64le
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.6 ppc64le
Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.0 aarch64
Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.0 aarch64
Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.2 aarch64
Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 aarch64
Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.6 aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.2 aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4 aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.6 aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.0 aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.4 aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.6 aarch64
Red Hat Enterprise Linux for ARM 64 10 aarch64
Red Hat Enterprise Linux for ARM 64 8 aarch64
Red Hat Enterprise Linux for ARM 64 9 aarch64
Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.0 s390x
Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.0 s390x
Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.2 s390x
Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 s390x
Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.6 s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.2 s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4 s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.6 s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.0 s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.4 s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.6 s390x
Red Hat Enterprise Linux for IBM z Systems 10 s390x
Red Hat Enterprise Linux for IBM z Systems 8 s390x
Red Hat Enterprise Linux for IBM z Systems 9 s390x
Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.0 ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.2 ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4 ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.6 ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.0 ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.4 ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.6 ppc64le
Red Hat Enterprise Linux for Power, little endian 10 ppc64le
Red Hat Enterprise Linux for Power, little endian 8 ppc64le
Red Hat Enterprise Linux for Power, little endian 9 ppc64le
Red Hat Enterprise Linux for Real Time 8 x86_64
Red Hat Enterprise Linux for Real Time for NFV 8 x86_64
Red Hat Enterprise Linux for Real Time for x86_64 - Extended Life Cycle Support 7 x86_64
Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.0 x86_64
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 x86_64
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.2 x86_64
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4 x86_64
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.6 x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.0 x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.4 x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.6 x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.4 x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.6 x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.8 x86_64
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6 x86_64
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 x86_64
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.0 x86_64
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.2 x86_64
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 x86_64
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.6 x86_64
Red Hat Enterprise Linux for x86_64 10 x86_64
Red Hat Enterprise Linux for x86_64 8 x86_64
Red Hat Enterprise Linux for x86_64 9 x86_64
Red Hat OpenShift Container Platform 4.12 for RHEL 8 x86_64
Red Hat OpenShift Container Platform 4.12 for RHEL 9 x86_64
Red Hat OpenShift Container Platform 4.13 for RHEL 8 x86_64
Red Hat OpenShift Container Platform 4.13 for RHEL 9 x86_64
Red Hat OpenShift Container Platform 4.14 for RHEL 8 x86_64
Red Hat OpenShift Container Platform 4.14 for RHEL 9 x86_64
Red Hat OpenShift Container Platform 4.15 for RHEL 8 x86_64
Red Hat OpenShift Container Platform 4.15 for RHEL 9 x86_64
Red Hat OpenShift Container Platform 4.16 for RHEL 9 x86_64
Red Hat OpenShift Container Platform 4.17 for RHEL 8 x86_64
Red Hat OpenShift Container Platform 4.17 for RHEL 9 x86_64
Red Hat OpenShift Container Platform 4.18 for RHEL 8 x86_64
Red Hat OpenShift Container Platform 4.18 for RHEL 9 x86_64
Red Hat OpenShift Container Platform 4.19 for RHEL 8 x86_64
Red Hat OpenShift Container Platform 4.19 for RHEL 9 x86_64
Red Hat OpenShift Container Platform 4.20 for RHEL 8 x86_64
Red Hat OpenShift Container Platform 4.20 for RHEL 9 x86_64
Red Hat OpenShift Container Platform 4.21 for RHEL 8 x86_64
Red Hat OpenShift Container Platform 4.21 for RHEL 9 x86_64
Red Hat OpenShift Container Platform for ARM 64 4.12 for RHEL 8 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.12 for RHEL 9 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.13 for RHEL 8 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.13 for RHEL 9 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.14 for RHEL 8 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.14 for RHEL 9 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.15 for RHEL 8 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.15 for RHEL 9 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.16 for RHEL 9 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.17 for RHEL 8 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.17 for RHEL 9 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.18 for RHEL 8 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.18 for RHEL 9 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.19 for RHEL 8 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.19 for RHEL 9 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.20 for RHEL 8 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.20 for RHEL 9 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.21 for RHEL 8 aarch64
Red Hat OpenShift Container Platform for ARM 64 4.21 for RHEL 9 aarch64
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.12 for RHEL 8 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.12 for RHEL 9 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.13 for RHEL 8 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.13 for RHEL 9 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.14 for RHEL 8 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.14 for RHEL 9 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.15 for RHEL 8 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.15 for RHEL 9 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.16 for RHEL 9 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.17 for RHEL 8 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.17 for RHEL 9 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.18 for RHEL 8 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.18 for RHEL 9 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.19 for RHEL 8 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.19 for RHEL 9 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.20 for RHEL 8 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.20 for RHEL 9 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.21 for RHEL 8 s390x
Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.21 for RHEL 9 s390x
Red Hat OpenShift Container Platform for Power 4.12 for RHEL 8 ppc64le
Red Hat OpenShift Container Platform for Power 4.12 for RHEL 9 ppc64le
Red Hat OpenShift Container Platform for Power 4.13 for RHEL 8 ppc64le
Red Hat OpenShift Container Platform for Power 4.13 for RHEL 9 ppc64le
Red Hat OpenShift Container Platform for Power 4.14 for RHEL 8 ppc64le
Red Hat OpenShift Container Platform for Power 4.14 for RHEL 9 ppc64le
Red Hat OpenShift Container Platform for Power 4.15 for RHEL 8 ppc64le
Red Hat OpenShift Container Platform for Power 4.15 for RHEL 9 ppc64le
Red Hat OpenShift Container Platform for Power 4.16 for RHEL 9 ppc64le
Red Hat OpenShift Container Platform for Power 4.17 for RHEL 8 ppc64le
Red Hat OpenShift Container Platform for Power 4.17 for RHEL 9 ppc64le
Red Hat OpenShift Container Platform for Power 4.18 for RHEL 8 ppc64le
Red Hat OpenShift Container Platform for Power 4.18 for RHEL 9 ppc64le
Red Hat OpenShift Container Platform for Power 4.19 for RHEL 8 ppc64le
Red Hat OpenShift Container Platform for Power 4.19 for RHEL 9 ppc64le
Red Hat OpenShift Container Platform for Power 4.20 for RHEL 8 ppc64le
Red Hat OpenShift Container Platform for Power 4.20 for RHEL 9 ppc64le
Red Hat OpenShift Container Platform for Power 4.21 for RHEL 8 ppc64le
Red Hat OpenShift Container Platform for Power 4.21 for RHEL 9 ppc64le

Solutions

Before installation of the software, please visit the vendor web-site for more details.

Apply fixes issued by the vendor:

Vulnerability Identifier

CVE-2018-16885
CVE-2024-41073
CVE-2024-53216
CVE-2025-21999
CVE-2025-37861
CVE-2025-38024
CVE-2025-38653
CVE-2025-39766
CVE-2025-39981
CVE-2025-40240
CVE-2025-40252
CVE-2025-61662
CVE-2025-65637
CVE-2025-68183
CVE-2025-68347
CVE-2025-68366
CVE-2025-68724
CVE-2025-68741
CVE-2025-69419
CVE-2025-71116
CVE-2025-71238
CVE-2026-23097
CVE-2026-23136
CVE-2026-23139
CVE-2026-23191
CVE-2026-23193
CVE-2026-23243
CVE-2026-23270
CVE-2026-23401
CVE-2026-23455
CVE-2026-25646
CVE-2026-25749
CVE-2026-27135
CVE-2026-28417
CVE-2026-28421
CVE-2026-31402
CVE-2026-31408
CVE-2026-31419
CVE-2026-31431
CVE-2026-31532
CVE-2026-31684
CVE-2026-31685
CVE-2026-31709
CVE-2026-33412
CVE-2026-3497
CVE-2026-4111
CVE-2026-43020
CVE-2026-43027
CVE-2026-43051
CVE-2026-43077
CVE-2026-43158
CVE-2026-43163
CVE-2026-43190
CVE-2026-43284
CVE-2026-4424
CVE-2026-46300
CVE-2026-46333
CVE-2026-5121

Source

Redhat