Improper locking in Linux kernel - CVE-2025-10263

Vulnerability identifier: #VU138955

CSH Severity: Low

CVSS v4 BT: 5.9 [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/E:U/U:Clear]

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 memory synchronization in broadcast TLBI completion in the arm64 TLB invalidation handling when performing broadcast TLB invalidation on affected Arm CPUs. A local user can trigger affected memory access patterns to disclose sensitive information, modify data, or cause a denial of service.

The issue affects completion of memory accesses translated by an invalidated TLB entry, while TLB entries themselves are still invalidated correctly.

Linux kernel
Red Hat Enterprise Linux Server - AUS
openEuler
Fedora
kernel (Red Hat package)
xen
kernel-tools
python3-perf-debuginfo
python3-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-source
kernel-headers
kernel-devel
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
bpftool
kernel
Red Hat OpenShift Container Platform

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel (Red Hat package) - addressed in versions 4.18.0-305.200.1.el8_4, 4.18.0-372.204.1.el8_6
xen - update to 4.20.4-1.fc43
Red Hat OpenShift Container Platform - update to 4.22.6
kernel-tools - update to 6.6.0-145.1.19.156
python3-perf-debuginfo - update to 6.6.0-145.1.19.156
python3-perf - update to 6.6.0-145.1.19.156
perf-debuginfo - update to 6.6.0-145.1.19.156
perf - update to 6.6.0-145.1.19.156
kernel-tools-devel - update to 6.6.0-145.1.19.156
kernel-tools-debuginfo - update to 6.6.0-145.1.19.156
kernel-source - update to 6.6.0-145.1.19.156
kernel-headers - update to 6.6.0-145.1.19.156
kernel-devel - update to 6.6.0-145.1.19.156
kernel-debugsource - update to 6.6.0-145.1.19.156
kernel-debuginfo - update to 6.6.0-145.1.19.156
bpftool-debuginfo - update to 6.6.0-145.1.19.156
bpftool - update to 6.6.0-145.1.19.156
kernel - update to 6.6.0-145.1.19.156

• 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