CVE-2025-21789

7.1 HIGH
Published: February 27, 2025 Modified: October 01, 2025

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://git.kernel.org/stable/c/6287f1a8c16138c2ec750953e35039634018c84a
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mailing List Patch
https://git.kernel.org/stable/c/964a8895704a22efc06a2a3276b624a5ae985a06
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mailing List Patch
https://git.kernel.org/stable/c/9f15a8df542c0f08732a67d1a14ee7c22948fb97
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mailing List Patch
https://git.kernel.org/stable/c/d6508ffff32b44b6d0de06704034e4eef1c307a7
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mailing List Patch

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.1 / 10.0
EPSS (Exploit Probability)
0.0%
11th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

linux