CVE-2025-21788

5.5 MEDIUM
Published: February 27, 2025 Modified: October 01, 2025

Description

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: am65-cpsw: fix memleak in certain XDP cases If the XDP program doesn't result in XDP_PASS then we leak the memory allocated by am65_cpsw_build_skb(). It is pointless to allocate SKB memory before running the XDP program as we would be wasting CPU cycles for cases other than XDP_PASS. Move the SKB allocation after evaluating the XDP program result. This fixes the memleak. A performance boost is seen for XDP_DROP test. XDP_DROP test: Before: 460256 rx/s 0 err/s After: 784130 rx/s 0 err/s

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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:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://git.kernel.org/stable/c/1bba1d042107167164a0ae3a843fdf650ab005d7
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mailing List Patch
https://git.kernel.org/stable/c/5db843258de1e4e6b1ef1cbd1797923c9e3de548
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mailing List Patch
https://git.kernel.org/stable/c/dc11f049612b9d926aca2e55f8dc9d82850d0da3
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mailing List Patch

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.5 / 10.0
EPSS (Exploit Probability)
0.0%
8th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

linux