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
Metrics
Affected Vendors & Products
| Source | ID | Title | 
|---|---|---|
  Debian DLA | 
                DLA-4008-1 | linux-6.1 security update | 
  Debian DLA | 
                DLA-4075-1 | linux security update | 
  Ubuntu USN | 
                USN-7166-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7166-2 | Linux kernel (AWS) vulnerabilities | 
  Ubuntu USN | 
                USN-7166-3 | Linux kernel (HWE) vulnerabilities | 
  Ubuntu USN | 
                USN-7166-4 | Linux kernel (Xilinx ZynqMP) vulnerabilities | 
  Ubuntu USN | 
                USN-7186-1 | Linux kernel (Intel IoTG) vulnerabilities | 
  Ubuntu USN | 
                USN-7186-2 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7194-1 | Linux kernel (Azure) vulnerabilities | 
  Ubuntu USN | 
                USN-7276-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7277-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7301-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7303-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7303-2 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7303-3 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7304-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7310-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7311-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7384-1 | Linux kernel (Azure) vulnerabilities | 
  Ubuntu USN | 
                USN-7384-2 | Linux kernel (Azure) vulnerabilities | 
  Ubuntu USN | 
                USN-7385-1 | Linux kernel (IBM) vulnerabilities | 
  Ubuntu USN | 
                USN-7386-1 | Linux kernel (OEM) vulnerabilities | 
  Ubuntu USN | 
                USN-7403-1 | Linux kernel (HWE) vulnerabilities | 
  Ubuntu USN | 
                USN-7468-1 | Linux kernel (Azure, N-Series) vulnerabilities | 
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Mon, 03 Nov 2025 23:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| References | 
         | 
Mon, 03 Nov 2025 21:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| References | 
         | 
Fri, 25 Oct 2024 15:00:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | 
        
        Linux
         Linux linux Kernel  | 
|
| Weaknesses | CWE-129 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products | 
        
        Linux
         Linux linux Kernel  | 
|
| Metrics | 
        
        
        cvssV3_1
         
  | 
    
        
        
        cvssV3_1
         
  | 
Wed, 23 Oct 2024 01:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| References | 
         | |
| Metrics | 
        
        
        threat_severity
         
  | 
    
        
        cvssV3_1
         
 
  | 
Tue, 22 Oct 2024 14:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | 
        
        ssvc
         
  | 
Mon, 21 Oct 2024 18:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| 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 | |
| Title | drm/amd/display: Fix index out of bounds in DCN30 degamma hardware format translation | |
| References | 
         | 
        
  | 
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-11-03T22:22:59.810Z
Reserved: 2024-10-21T12:17:06.026Z
Link: CVE-2024-49895
Updated: 2025-11-03T22:22:59.810Z
Status : Modified
Published: 2024-10-21T18:15:11.990
Modified: 2025-11-03T23:16:29.593
Link: CVE-2024-49895
                        OpenCVE Enrichment
                    No data.
 Debian DLA
 Ubuntu USN