# CVE-2025-68187: linux: In the Linux kernel, the following vulnerability has been resolved:  net: mdio: Check regmap pointer returned by devi...

CVE-2025-68187 is fixed in linux on 1 platform by DEBIAN-CVE-2025-68187 (version 6.17.8-1), released December 16, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-68187
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 16, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  net: mdio: Check regmap pointer returned by device_node_to_regmap()  The call to device_node_to_regmap() in airoha_mdio_probe() can return an ERR_PTR() if regmap initialization fails. Currently, the driver stores the pointer without validation, which could lead to a crash if it is later dereferenced.  Add an IS_ERR() check and return the corresponding error code to make the probe path more robust.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.17.8-1 | [DEBIAN-CVE-2025-68187](https://patchblox.com/security/data/fix/linux/debian-cve-2025-68187.md) | Dec 16, 2025 |

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