Vulnerability CVE-2024-38552
Published: 2024-06-19

Description:
In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Fix potential index out of bounds in color transformation function

Fixes index out of bounds issue in the color transformation 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, an error message is
logged and the function returns false to indicate an error.

Reported by smatch:
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:405 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:406 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:407 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.blue' 1025 <= s32max

 References:
https://git.kernel.org/stable/c/604c506ca43fce52bb882cff9c1fdf2ec3b4029c
https://git.kernel.org/stable/c/e280ab978c81443103d7c61bdd1d8d708cf6ed6d
https://git.kernel.org/stable/c/04bc4d1090c343025d69149ca669a27c5b9c34a7
https://git.kernel.org/stable/c/ced9c4e2289a786b8fa684d8893b7045ea53ef7e
https://git.kernel.org/stable/c/98b8a6bfd30d07a19cfacdf82b50f84bf3360869
https://git.kernel.org/stable/c/4e8c8b37ee84b3b19c448d2b8e4c916d2f5b9c86
https://git.kernel.org/stable/c/123edbae64f4d21984359b99c6e79fcde31c6123
https://git.kernel.org/stable/c/7226ddf3311c5e5a7726ad7d4e7b079bb3cfbb29
https://git.kernel.org/stable/c/63ae548f1054a0b71678d0349c7dc9628ddd42ca
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