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CVE-2024-49895

drm/amd/display: Fix index out of bounds in DCN30 degamma hardware format translation PUBLISHED

Description (CNA)

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

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before ad89f83343a501890cf082c8a584e96b59fe4015; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before de6ee4f9e6b1c36b4fdc7c345c1a6de9e246093e; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before f3ccd855b4395ce65f10dd37847167f52e122b70; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before 0d38a0751143afc03faef02d55d31f70374ff843; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before f5c3d306de91a4b69cfe3eedb72b42d452593e42; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before c4fdc2d6fea129684b82bab90bb52fbace494a58; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before bc50b614d59990747dd5aeced9ec22f9258991ff
Linux / Linuxaffected 4.15; unaffected 0 before 4.15; unaffected 5.10.227 through 5.10.*; unaffected 5.15.168 through 5.15.*; unaffected 6.1.113 through 6.1.*; unaffected 6.6.55 through 6.6.*; unaffected 6.10.14 through 6.10.*; unaffected 6.11.3 through 6.11.*; unaffected 6.12 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

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CVE

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