# CVE-2024-42118: drm/amd/display: Do not return negative stream id for array

CVE-2024-42118 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-42118, released July 30, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2024-42118
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 30, 2024
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-42118

## Description

In the Linux kernel, the following vulnerability has been resolved:  drm/amd/display: Do not return negative stream id for array  [WHY] resource_stream_to_stream_idx returns an array index and it return -1 when not found; however, -1 is not a valid array index number.  [HOW] When this happens, call ASSERT(), and return a zero instead.  This fixes an OVERRUN and an NEGATIVE_RETURNS issues reported by Coverity.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.9.9-1 | [DEBIAN-CVE-2024-42118](https://patchblox.com/security/data/fix/linux/debian-cve-2024-42118.md) | Jul 30, 2024 |
| Linux | linux Debian 14 | 6.9.9-1 | [DEBIAN-CVE-2024-42118](https://patchblox.com/security/data/fix/linux/debian-cve-2024-42118.md) | Jul 30, 2024 |

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