Improper locking in Linux kernel - CVE-2025-10263

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Main Vulnerability Database Vulnerabilities #VU136690

Improper locking in Linux kernel - CVE-2025-10263

Published: July 2, 2026


Vulnerability identifier: #VU136690
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-2025-10263
CWE-ID: CWE-667
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 memory synchronization in broadcast TLB invalidation completion handling in the arm64 CPU errata logic when performing broadcast TLB invalidation on affected Arm CPUs. A local user can trigger memory access patterns that rely on invalidated TLB entries to cause a denial of service.

The issue affects only completion of memory accesses translated by an invalidated TLB entry and does not prevent the actual invalidation of TLB entries.


Affected software

Linux kernel
Debian Linux
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Micro
SUSE Linux Micro Extras
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 IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
SUSE Real Time Module
SUSE Linux Enterprise Live Patching
openEuler
Ubuntu
Fedora
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
kernel-livepatch-6_4_0-150700_7_62-rt
kernel-livepatch-SLE15-SP7-RT_Update_17-debugsource
kernel-livepatch-6_4_0-150700_7_62-rt-debuginfo
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-tools
kernel-tools-libs
kernel-modules-extra
perf
kernel-modules
python3-perf
kernel-tools-libs-devel
kernel-headers
kernel-devel
kernel-abi-stablelists
kernel-debug-modules-extra
kernel-debug-modules
kernel-debug-devel
kernel-debug-core
kernel-debug
bpftool
kernel
kernel-core
kernel-cross-headers
kernel-doc
kernel-tools-devel
python3-perf-debuginfo
python2-perf-debuginfo
python2-perf
perf-debuginfo
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-source
kernel-tools-debuginfo
xen (Debian package)
xen
linux-aws (Ubuntu package)
linux-ibm-5.15 (Ubuntu package)
linux-aws-5.15 (Ubuntu package)
kernel-default
kernel-kvmsmall-debugsource
kernel-64kb
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-kvmsmall
kernel-default-livepatch
kernel-kvmsmall-debuginfo
kernel-default-base
cluster-md-kmp-rt
kernel-rt-devel
kernel-syms-rt
kernel-rt-debugsource
ocfs2-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-source-rt
kernel-devel-rt
kernel-rt
dlm-kmp-rt
gfs2-kmp-rt-debuginfo
kernel-rt-debuginfo
dlm-kmp-rt-debuginfo
gfs2-kmp-rt
ocfs2-kmp-rt
kernel-extra-modules
linux (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-azure-7.0 (Ubuntu package)
Red Hat OpenShift Container Platform

How to mitigate CVE-2025-10263

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel-livepatch-6_4_0-150700_7_62-rt - 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-debuginfo - update to 1-150700.1.3.1
Red Hat OpenShift Container Platform - addressed in versions 4.12.96, 4.18.53, 4.22.6
kernel (Red Hat package) - addressed in versions 4.18.0-305.200.1.el8_4, 4.18.0-372.204.1.el8_6, 4.18.0-477.158.1.el8_8, 4.18.0-553.140.1.el8_10, 5.14.0-284.186.1.el9_2, 5.14.0-427.143.1.el9_4, 5.14.0-570.131.1.el9_6, 5.14.0-687.22.1.el9_8, 6.12.0-211.30.1.el10_2
kernel-rt (Red Hat package) - addressed in versions 4.18.0-553.140.1.rt7.481.el8_10, 5.14.0-284.186.1.rt14.471.el9_2
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-modules-extra - update to 4.18.0-553.141.1.0.1
perf - update to 4.18.0-553.141.1.0.1
kernel-modules - update to 4.18.0-553.141.1.0.1
python3-perf - update to 4.18.0-553.141.1.0.1
kernel-tools-libs-devel - 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-abi-stablelists - 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
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-doc - update to 4.18.0-553.141.1.0.1
perf - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
kernel-tools-devel - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
python3-perf-debuginfo - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
python3-perf - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
python2-perf-debuginfo - update to 4.19.90-2607.4.0.0382
python2-perf - update to 4.19.90-2607.4.0.0382
perf-debuginfo - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
kernel - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
bpftool - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
bpftool-debuginfo - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
kernel-debuginfo - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
kernel-debugsource - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
kernel-devel - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
kernel-source - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
kernel-tools - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
kernel-tools-debuginfo - addressed in versions 4.19.90-2607.4.0.0382, 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
xen (Debian package) - update to 4.20.3+127-gc42374a105-0+deb13u1
xen - update to 4.20.4-1.fc43
kernel-headers - addressed in versions 5.10.0-326.0.0.227, 6.6.0-145.1.19.156, 6.6.0-145.3.17.150
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
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-default - update to 6.4.0-48.1
kernel-kvmsmall-debugsource - update to 6.4.0-48.1
kernel-64kb - 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-debuginfo - update to 6.4.0-48.1
kernel-default-base - update to 6.4.0-48.1.21.25
cluster-md-kmp-rt - 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-rt-debugsource - update to 6.4.0-150700.7.62.1
ocfs2-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
cluster-md-kmp-rt-debuginfo - 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
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
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-extra-modules - update to 6.6.0-145.3.17.150
linux (Ubuntu package) - addressed in versions 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-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-azure-7.0 (Ubuntu package) - update to 7.0.0-1014.14~24.04.1

External References

Related Security Bulletins