Race condition in Linux kernel - CVE-2026-53354

Vulnerability identifier: #VU136812

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-53354

CWE-ID: CWE-362

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper synchronization in broadcast TLBI completion handling in the arm64 CPU errata logic when performing broadcast TLB invalidation on affected Arm CPUs. A local user can trigger memory management activity to cause a denial of service.

The issue affects completion of memory accesses translated by an invalidated TLB entry, while TLB invalidation itself still occurs correctly.

Linux kernel
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Micro Extras
SUSE Linux Micro
Red Hat CodeReady Linux Builder for ARM 64
Anolis OS
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for Real Time
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
SUSE Linux Enterprise Live Patching
SUSE Real Time Module
Ubuntu
openEuler
kernel-livepatch-6_4_0-150700_7_62-rt-debuginfo
kernel-livepatch-SLE15-SP7-RT_Update_17-debugsource
kernel-livepatch-6_4_0-150700_7_62-rt
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
perf
python3-perf
kernel-abi-stablelists
kernel-doc
kernel-modules-extra
kernel-modules
kernel-headers
kernel-devel
kernel-debug-modules-extra
kernel-debug-modules
kernel-debug-devel
kernel-debug-core
kernel-debug
kernel-cross-headers
kernel-core
kernel
bpftool
kernel-default
kernel-64kb
kernel-kvmsmall-debuginfo
kernel-syms
kernel-default-devel
kernel-default-debugsource
kernel-obs-build-debugsource
kernel-obs-build
kernel-64kb-debugsource
kernel-64kb-devel
kernel-default-devel-debuginfo
kernel-default-debuginfo
kernel-macros
kernel-source
kernel-kvmsmall
kernel-default-livepatch
kernel-kvmsmall-debugsource
kernel-default-base
kernel-syms-rt
kernel-source-rt
kernel-devel-rt
kernel-rt
gfs2-kmp-rt-debuginfo
dlm-kmp-rt
ocfs2-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt-debugsource
kernel-rt-devel
cluster-md-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
ocfs2-kmp-rt
gfs2-kmp-rt
dlm-kmp-rt-debuginfo
kernel-rt-debuginfo
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-tools-debuginfo
kernel-extra-modules
kernel-tools-devel
perf-debuginfo
python3-perf-debuginfo
linux-nvidia (Ubuntu package)
linux-nvidia-6.17 (Ubuntu package)
Red Hat OpenShift Container Platform

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel-livepatch-6_4_0-150700_7_62-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-SLE15-SP7-RT_Update_17-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_62-rt - update to 1-150700.1.3.1
kernel (Red Hat package) - addressed in versions 4.18.0-553.140.1.el8_10, 5.14.0-687.22.1.el9_8
kernel-rt (Red Hat package) - update to 4.18.0-553.140.1.rt7.481.el8_10
kernel-tools - update to 4.18.0-553.141.1.0.1
kernel-tools-libs - update to 4.18.0-553.141.1.0.1
kernel-tools-libs-devel - update to 4.18.0-553.141.1.0.1
perf - update to 4.18.0-553.141.1.0.1
python3-perf - update to 4.18.0-553.141.1.0.1
kernel-abi-stablelists - update to 4.18.0-553.141.1.0.1
kernel-doc - update to 4.18.0-553.141.1.0.1
kernel-modules-extra - update to 4.18.0-553.141.1.0.1
kernel-modules - update to 4.18.0-553.141.1.0.1
kernel-headers - update to 4.18.0-553.141.1.0.1
kernel-devel - update to 4.18.0-553.141.1.0.1
kernel-debug-modules-extra - update to 4.18.0-553.141.1.0.1
kernel-debug-modules - update to 4.18.0-553.141.1.0.1
kernel-debug-devel - update to 4.18.0-553.141.1.0.1
kernel-debug-core - update to 4.18.0-553.141.1.0.1
kernel-debug - update to 4.18.0-553.141.1.0.1
kernel-cross-headers - update to 4.18.0-553.141.1.0.1
kernel-core - update to 4.18.0-553.141.1.0.1
kernel - update to 4.18.0-553.141.1.0.1
bpftool - update to 4.18.0-553.141.1.0.1
Red Hat OpenShift Container Platform - update to 4.22.6
kernel-default - update to 6.4.0-48.1
kernel-64kb - update to 6.4.0-48.1
kernel-kvmsmall-debuginfo - update to 6.4.0-48.1
kernel-syms - update to 6.4.0-48.1
kernel-default-devel - update to 6.4.0-48.1
kernel-default-debugsource - update to 6.4.0-48.1
kernel-obs-build-debugsource - update to 6.4.0-48.1
kernel-obs-build - update to 6.4.0-48.1
kernel-64kb-debugsource - update to 6.4.0-48.1
kernel-64kb-devel - update to 6.4.0-48.1
kernel-default-devel-debuginfo - update to 6.4.0-48.1
kernel-default-debuginfo - update to 6.4.0-48.1
kernel-macros - update to 6.4.0-48.1
kernel-devel - update to 6.4.0-48.1
kernel-source - update to 6.4.0-48.1
kernel-kvmsmall - update to 6.4.0-48.1
kernel-default-livepatch - update to 6.4.0-48.1
kernel-kvmsmall-debugsource - update to 6.4.0-48.1
kernel-default-base - update to 6.4.0-48.1.21.25
kernel-syms-rt - update to 6.4.0-150700.7.62.1
kernel-source-rt - update to 6.4.0-150700.7.62.1
kernel-devel-rt - update to 6.4.0-150700.7.62.1
kernel-rt - update to 6.4.0-150700.7.62.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
dlm-kmp-rt - update to 6.4.0-150700.7.62.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.62.1
kernel-rt-debugsource - update to 6.4.0-150700.7.62.1
kernel-rt-devel - update to 6.4.0-150700.7.62.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.62.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.62.1
gfs2-kmp-rt - update to 6.4.0-150700.7.62.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.62.1
kernel - update to 6.6.0-145.3.17.150
bpftool - update to 6.6.0-145.3.17.150
bpftool-debuginfo - update to 6.6.0-145.3.17.150
kernel-debuginfo - update to 6.6.0-145.3.17.150
kernel-debugsource - update to 6.6.0-145.3.17.150
kernel-tools-debuginfo - update to 6.6.0-145.3.17.150
kernel-devel - update to 6.6.0-145.3.17.150
kernel-extra-modules - update to 6.6.0-145.3.17.150
kernel-headers - update to 6.6.0-145.3.17.150
kernel-source - update to 6.6.0-145.3.17.150
kernel-tools - update to 6.6.0-145.3.17.150
kernel-tools-devel - update to 6.6.0-145.3.17.150
perf - update to 6.6.0-145.3.17.150
perf-debuginfo - update to 6.6.0-145.3.17.150
python3-perf - update to 6.6.0-145.3.17.150
python3-perf-debuginfo - update to 6.6.0-145.3.17.150
linux-nvidia (Ubuntu package) - addressed in versions 6.8.0-1059.62, 6.8.0-1059.62.1, 6.8.0-1059.62~22.04.1, 7.0.0-1015.15, 7.0.0-1015.15~24.04.1
linux-nvidia-6.17 (Ubuntu package) - update to 6.17.0-1029.29

• https://git.kernel.org/stable/c/1268c64e2bcb6e968152990e87bd10c440fcc9c0
• https://git.kernel.org/stable/c/1b47b1e1d8675fdf5f6e11e7fa19c704d8c6f5cd
• https://git.kernel.org/stable/c/4e7c80742e6dada9f8b9ad63f3a49c03af07ecb8
• https://git.kernel.org/stable/c/7c3ad9365079e716b57d2363d3081ee7680cc18e
• https://git.kernel.org/stable/c/8364384ae82fbffdf8968abaac3455ed854da18d
• https://git.kernel.org/stable/c/925058203229403008d77a52b1e63e2ae5f4a3cf
• https://git.kernel.org/stable/c/cfd391e74134db664feb499d43af286380b10ba8
• https://git.kernel.org/stable/c/d4fd4282204044fdedd1e42abbe70a9206f74ec0
• https://git.kernel.org/stable/c/e717a4d08779f1a28d6e0275e75040b12c33c753

• Race condition in Linux kernel arm64 kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• openEuler 24.03 LTS SP3 update for kernel
• Red Hat Enterprise Linux 9 update for kernel
• Red Hat Enterprise Linux 8 update for kernel
• Red Hat Enterprise Linux 8 update for kernel-rt
• SUSE update for the Linux Kernel
• Anolis OS update for kernel:4.18
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.22
• Ubuntu update for linux-nvidia
• Ubuntu update for linux-nvidia-6.17
• Ubuntu update for linux-nvidia