# CVE-2025-68763: crypto: starfive - Correctly handle return of sg_nents_for_len

CVE-2025-68763 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-68763, released January 5, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-68763
- Priority: Routine
- CVSS: 5.5 (Moderate)
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 5, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-68763

## Description

In the Linux kernel, the following vulnerability has been resolved:  crypto: starfive - Correctly handle return of sg_nents_for_len  The return value of sg_nents_for_len was assigned to an unsigned long in starfive_hash_digest, causing negative error codes to be converted to large positive integers.  Add error checking for sg_nents_for_len and return immediately on failure to prevent potential buffer overflows.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.63-1 | [DEBIAN-CVE-2025-68763](https://patchblox.com/security/data/fix/linux/debian-cve-2025-68763.md) | Jan 5, 2026 |
| Linux | linux Debian 14 | 6.17.13-1 | [DEBIAN-CVE-2025-68763](https://patchblox.com/security/data/fix/linux/debian-cve-2025-68763.md) | Jan 5, 2026 |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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