# CVE-2025-39856: linux: In the Linux kernel, the following vulnerability has been resolved:  net: ethernet: ti: am65-cpsw-nuss: Fix null poin...

CVE-2025-39856 is fixed in linux on 1 platform by DEBIAN-CVE-2025-39856 (version 6.16.6-1), released September 19, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-39856
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0013
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 19, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  net: ethernet: ti: am65-cpsw-nuss: Fix null pointer dereference for ndev  In the TX completion packet stage of TI SoCs with CPSW2G instance, which has single external ethernet port, ndev is accessed without being initialized if no TX packets have been processed. It results into null pointer dereference, causing kernel to crash. Fix this by having a check on the number of TX packets which have been processed.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.16.6-1 | [DEBIAN-CVE-2025-39856](https://patchblox.com/security/data/fix/linux/debian-cve-2025-39856.md) | Sep 19, 2025 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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