Vulnerabilities CVE-2025-21789

CVE-2025-21789

High

Open

TLP:CLEAR

LoongArch: csum: Fix OoB access in IP checksum code for negative lengths

NVD CVE.org

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Description

In the Linux kernel, the following vulnerability has been resolved: LoongArch: csum: Fix OoB access in IP checksum code for negative lengths Commit 69e3a6aa6be2 ("LoongArch: Add checksum optimization for 64-bit system") would cause an undefined shift and an out-of-bounds read. Commit 8bd795fedb84 ("arm64: csum: Fix OoB access in IP checksum code for negative lengths") fixes the same issue on ARM64.

Details

CVSS Score: 7.3
EPSS Score ⓘ: 0.23%

13.4th percentile
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Confidence: 90%
Published: Feb 27, 2025
Last Modified: Aug 5, 2026

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