# CVE-2025-68196: drm/amd/display: Cache streams targeting link when performing LT automation

CVE-2025-68196 is fixed in linux on 1 platform by DEBIAN-CVE-2025-68196 (version 6.17.8-1), released December 16, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-68196
- Priority: High
- CVSS: 8.8 (Important)
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 16, 2025
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-68196

## Description

In the Linux kernel, the following vulnerability has been resolved:  drm/amd/display: Cache streams targeting link when performing LT automation  [WHY] Last LT automation update can cause crash by referencing current_state and calling into dc_update_planes_and_stream which may clobber current_state.  [HOW] Cache relevant stream pointers and iterate through them instead of relying on the current_state.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.17.8-1 | [DEBIAN-CVE-2025-68196](https://patchblox.com/security/data/fix/linux/debian-cve-2025-68196.md) | Dec 16, 2025 |

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