RedHat Linux Kernel Multiple Vulnerabilities

Release Date: 8 May 2026

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 and sensitive information disclosure 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.

Impact

Denial of Service
Elevation of Privilege
Information Disclosure

System / Technologies affected

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 - Extended Update Support 10.0 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 ARM 64 10 aarch64
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 - Extended Update Support 10.0 s390x
Red Hat CodeReady Linux Builder for IBM z Systems 9 s390x
Red Hat CodeReady Linux Builder for IBM z Systems 10 s390x
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 - Extended Update Support 10.0 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 Power, little endian 10 ppc64le
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 - Extended Update Support 10.0 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 CodeReady Linux Builder for x86_64 10 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 7 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 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 Extension (for IBM z Systems) 6 s390x
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 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 - 4 years of updates 10.0 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 9.4 aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.6 aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.0 aarch64
Red Hat Enterprise Linux for ARM 64 8 aarch64
Red Hat Enterprise Linux for ARM 64 9 aarch64
Red Hat Enterprise Linux for ARM 64 10 aarch64
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 - 4 years of updates 10.0 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 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 - Extended Update Support 10.0 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 IBM z Systems 10 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 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 - Extended Update Support 10.0 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 Power, little endian 10 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 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 10.0 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 8 x86_64
Red Hat Enterprise Linux for x86_64 9 x86_64
Red Hat Enterprise Linux for x86_64 10 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 4.16 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 4.13 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 4.16 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 4.13 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 4.16 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 4.13 for RHEL 8 ppc64le
Red Hat OpenShift Container Platform for Power 4.13 for RHEL 9 ppc64le
Red Hat OpenShift Container Platform for Power 4.16 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

Source

Redhat

2026年5月9日星期六