# CVE-2025-38422: net: lan743x: Modify the EEPROM and OTP size for PCI1xxxx devices

CVE-2025-38422 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-38422, released July 25, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-38422
- Priority: High
- CVSS: 7.8 (Important)
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 25, 2025
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-38422

## Description

In the Linux kernel, the following vulnerability has been resolved:  net: lan743x: Modify the EEPROM and OTP size for PCI1xxxx devices  Maximum OTP and EEPROM size for hearthstone PCI1xxxx devices are 8 Kb and 64 Kb respectively. Adjust max size definitions and return correct EEPROM length based on device. Also prevent out-of-bound read/write.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.147-1 | [DEBIAN-CVE-2025-38422](https://patchblox.com/security/data/fix/linux/debian-cve-2025-38422.md) | Jul 25, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.12.35-1 | [DEBIAN-CVE-2025-38422](https://patchblox.com/security/data/fix/linux/debian-cve-2025-38422.md) | Jul 25, 2025 |
| Linux | linux Debian 14 | 6.12.35-1 | [DEBIAN-CVE-2025-38422](https://patchblox.com/security/data/fix/linux/debian-cve-2025-38422.md) | Jul 25, 2025 |

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