Race condition in Linux kernel - CVE-2025-10263
Published: July 7, 2026
Vulnerability identifier: #VU136964
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2025-10263
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper synchronization in broadcast TLB invalidation completion handling in the arm64 TLB invalidation logic when performing memory accesses translated by an invalidated TLB entry after a TLBI;DSB sequence. A local user can trigger affected memory access patterns to 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.
How to mitigate CVE-2025-10263
Install security update from vendor's repository.
Sources
- 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