Improper locking in Linux kernel - CVE-2025-10263

Vulnerability identifier: #VU138387

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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

The vulnerability allows a local user to disclose sensitive information, modify data, or cause a denial of service.

The vulnerability exists due to improper synchronization in broadcast TLB invalidation handling in the arm64 TLB invalidation logic when processing TLBI and DSB sequences on affected Arm CPUs. A local user can trigger memory accesses involving translations from an invalidated TLB entry to disclose sensitive information, modify data, or cause a denial of service.

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

Linux kernel
Debian Linux
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
openEuler
Fedora
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
kernel (Red Hat package)
kernel-devel
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-source
kernel-tools
kernel-tools-devel
python3-perf-debuginfo
python3-perf
python2-perf-debuginfo
python2-perf
perf-debuginfo
perf
kernel-tools-debuginfo
xen (Debian package)
xen
kernel-headers
kernel-rt (Red Hat package)
Red Hat OpenShift Container Platform

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
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, 5.14.0-284.186.1.el9_2, 5.14.0-427.143.1.el9_4, 5.14.0-570.131.1.el9_6
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
kernel-rt (Red Hat package) - update to 5.14.0-284.186.1.rt14.471.el9_2

• 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

• Improper locking in Linux kernel arm64 kernel
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.22
• openEuler 24.03 LTS SP1 update for kernel
• Red Hat Enterprise Linux 8 update for kernel
• Fedora 43 update for xen
• Red Hat Enterprise Linux 8 update for kernel
• Red Hat Enterprise Linux 9 update for kernel
• openEuler 22.03 LTS SP4 update for kernel
• openEuler 20.03 LTS SP4 update for kernel
• Red Hat Enterprise Linux 9 update for kernel
• Red Hat Enterprise Linux 9 update for kernel-rt
• Red Hat Enterprise Linux 9 update for kernel
• Red Hat Enterprise Linux 8 update for kernel
• Debian update for xen
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.18
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.12