Race condition in Linux kernel - CVE-2026-53354

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU136812

Race condition in Linux kernel - CVE-2026-53354

Published: July 2, 2026 / Updated: July 22, 2026


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

Vulnerability details

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.


Affected software

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 Enterprise Linux for Real Time for NFV
Anolis OS
Red Hat Enterprise Linux for Real Time
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 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-debug-devel
kernel-doc
bpftool
kernel
kernel-core
kernel-cross-headers
kernel-debug
kernel-debug-core
kernel-abi-stablelists
kernel-debug-modules
kernel-debug-modules-extra
kernel-devel
kernel-headers
kernel-modules
kernel-modules-extra
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
perf
python3-perf
linux-fips (Ubuntu package)
linux-aws (Ubuntu package)
linux (Ubuntu package)
linux-nvidia-tegra (Ubuntu package)
linux-nvidia-tegra-5.15 (Ubuntu package)
linux-ibm-5.15 (Ubuntu package)
linux-aws-5.15 (Ubuntu package)
kernel-64kb
kernel-default
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-default-livepatch
kernel-kvmsmall
kernel-source
kernel-macros
kernel-default-debugsource
kernel-default-devel-debuginfo
kernel-64kb-devel
kernel-64kb-debugsource
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-devel
kernel-syms
kernel-default-debuginfo
kernel-default-base
gfs2-kmp-rt
ocfs2-kmp-rt
kernel-rt-devel-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-rt-devel
kernel-syms-rt
kernel-source-rt
cluster-md-kmp-rt
ocfs2-kmp-rt-debuginfo
kernel-rt-debugsource
kernel-devel-rt
kernel-rt
dlm-kmp-rt
gfs2-kmp-rt-debuginfo
kernel-rt-debuginfo
dlm-kmp-rt-debuginfo
kernel-debuginfo
perf-debuginfo
kernel-tools-devel
kernel-tools-debuginfo
kernel-extra-modules
kernel-debugsource
bpftool-debuginfo
python3-perf-debuginfo
linux-nvidia (Ubuntu package)
linux-aws-fips (Ubuntu package)
linux-nvidia-6.17 (Ubuntu package)
linux-azure (Ubuntu package)
linux-gcp-7.0 (Ubuntu package)
linux-oracle-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)
linux-ibm (Ubuntu package)
linux-azure-7.0 (Ubuntu package)
linux-raspi (Ubuntu package)
Red Hat OpenShift Container Platform

How to mitigate CVE-2026-53354

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-debug-devel - update to 4.18.0-553.141.1.0.1
kernel-doc - update to 4.18.0-553.141.1.0.1
bpftool - update to 4.18.0-553.141.1.0.1
kernel - update to 4.18.0-553.141.1.0.1
kernel-core - update to 4.18.0-553.141.1.0.1
kernel-cross-headers - update to 4.18.0-553.141.1.0.1
kernel-debug - update to 4.18.0-553.141.1.0.1
kernel-debug-core - update to 4.18.0-553.141.1.0.1
kernel-abi-stablelists - 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-modules-extra - update to 4.18.0-553.141.1.0.1
kernel-devel - update to 4.18.0-553.141.1.0.1
kernel-headers - update to 4.18.0-553.141.1.0.1
kernel-modules - update to 4.18.0-553.141.1.0.1
kernel-modules-extra - update to 4.18.0-553.141.1.0.1
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
Red Hat OpenShift Container Platform - update to 4.22.6
linux-fips (Ubuntu package) - addressed in versions 5.15.0.194.113, 5.15.0-194.204+fips1
linux-aws (Ubuntu package) - addressed in versions 5.15.0.194.159, 5.15.0-194.204, 5.15.0-194.204~20.04.1, 5.15.0.1079.82, 5.15.0-1079.83, 5.15.0.1099.98, 5.15.0-1099.107, 5.15.0.1108.104, 5.15.0-1108.110, 5.15.0.1108.112, 5.15.0-1108.113, 5.15.0.1110.107, 5.15.0-1110.114, 5.15.0.1111.110, 5.15.0-1111.117, 5.15.0.1112.111, 5.15.0-1112.118, 5.15.0.1113.109, 5.15.0-1113.119, 5.15.0.1115.119, 5.15.0-1115.124, 5.15.0.1116.106, 5.15.0.1116.112, 5.15.0.1116.119, 5.15.0-1116.123, 5.15.0-1116.123+fips1, 5.15.0-1116.126+fips1, 5.15.0.1117.114, 5.15.0-1117.127, 5.15.0-1121.130, 5.15.0.1122.106, 5.15.0.1122.120, 5.15.0-1122.131, 5.15.0-1122.131+fips1, 6.8.0-1065.68, 6.8.0-1065.68~22.04.1
linux (Ubuntu package) - addressed in versions 5.15.0.194.171, 5.15.0-194.204, 5.15.0.1111.111, 5.15.0-1111.112, 6.8.0-142.142+fips1, 6.8.0-142.142.1, 6.8.0-142.142.1~22.04.1, 6.8.0-1050.54, 6.8.0-1062.65~22.04.1, 6.8.0-1064.72+fips1, 6.8.0-1065.66, 6.8.0-1065.69, 6.8.0-1066.73, 6.8.0-1066.73~22.04.1, 6.8.0-1068.76, 6.8.0-1068.76+fips1, 6.8.0-1068.76~22.04.1, 6.8.0-1069.77, 6.8.0-1069.77~22.04.1, 6.8.0-2054.56, 6.8.1-1060.61, 6.8.1-1060.61~22.04.1, 7.0.0-31.31, 7.0.0-31.31.1, 7.0.0-31.31~24.04.1, 7.0.0-1006.7, 7.0.0-1011.11~24.04.1, 7.0.0-1012.12, 7.0.0-1012.12~24.04.1
linux-nvidia-tegra (Ubuntu package) - addressed in versions 5.15.0-1057.57, 5.15.0.1057.59, 5.15.0.1068.68, 5.15.0-1068.70, 6.8.0-1035.38
linux-nvidia-tegra-5.15 (Ubuntu package) - update to 5.15.0-1068.70~20.04.1
linux-ibm-5.15 (Ubuntu package) - update to 5.15.0-1110.114~20.04.1
linux-aws-5.15 (Ubuntu package) - addressed in versions 5.15.0-1111.117~20.04.1, 5.15.0-1116.123~20.04.1, 5.15.0-1121.130~20.04.1, 5.15.0-1122.131~20.04.1
kernel-64kb - update to 6.4.0-48.1
kernel-default - update to 6.4.0-48.1
kernel-kvmsmall-debugsource - update to 6.4.0-48.1
kernel-kvmsmall-debuginfo - update to 6.4.0-48.1
kernel-default-livepatch - update to 6.4.0-48.1
kernel-kvmsmall - update to 6.4.0-48.1
kernel-source - update to 6.4.0-48.1
kernel-devel - update to 6.4.0-48.1
kernel-macros - update to 6.4.0-48.1
kernel-default-debugsource - update to 6.4.0-48.1
kernel-default-devel-debuginfo - update to 6.4.0-48.1
kernel-64kb-devel - update to 6.4.0-48.1
kernel-64kb-debugsource - update to 6.4.0-48.1
kernel-obs-build - update to 6.4.0-48.1
kernel-obs-build-debugsource - update to 6.4.0-48.1
kernel-default-devel - update to 6.4.0-48.1
kernel-syms - update to 6.4.0-48.1
kernel-default-debuginfo - update to 6.4.0-48.1
kernel-default-base - update to 6.4.0-48.1.21.25
gfs2-kmp-rt - update to 6.4.0-150700.7.62.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.62.1
kernel-rt-devel-debuginfo - 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 - update to 6.4.0-150700.7.62.1
kernel-syms-rt - update to 6.4.0-150700.7.62.1
kernel-source-rt - update to 6.4.0-150700.7.62.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.62.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
kernel-rt-debugsource - 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
dlm-kmp-rt - update to 6.4.0-150700.7.62.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.62.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
python3-perf - update to 6.6.0-145.3.17.150
kernel-debuginfo - update to 6.6.0-145.3.17.150
perf-debuginfo - update to 6.6.0-145.3.17.150
perf - update to 6.6.0-145.3.17.150
kernel-tools-devel - update to 6.6.0-145.3.17.150
kernel-tools-debuginfo - update to 6.6.0-145.3.17.150
kernel-tools - update to 6.6.0-145.3.17.150
kernel-source - update to 6.6.0-145.3.17.150
kernel-headers - update to 6.6.0-145.3.17.150
kernel-extra-modules - update to 6.6.0-145.3.17.150
kernel-devel - update to 6.6.0-145.3.17.150
kernel-debugsource - update to 6.6.0-145.3.17.150
bpftool-debuginfo - update to 6.6.0-145.3.17.150
bpftool - update to 6.6.0-145.3.17.150
kernel - 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-aws-fips (Ubuntu package) - update to 6.8.0-1065.68+fips1
linux-nvidia-6.17 (Ubuntu package) - update to 6.17.0-1029.29
linux-azure (Ubuntu package) - addressed in versions 7.0.0-1011.11, 7.0.0-1014.14
linux-gcp-7.0 (Ubuntu package) - update to 7.0.0-1011.11~24.04.1
linux-oracle-7.0 (Ubuntu package) - update to 7.0.0-1011.11~24.04.1
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1013.13
linux-ibm (Ubuntu package) - update to 7.0.0-1013.13
linux-azure-7.0 (Ubuntu package) - update to 7.0.0-1014.14~24.04.1
linux-raspi (Ubuntu package) - update to 7.0.0-1019.19

External References

Related Security Bulletins