CVE-2024-49895: drm/amd/display: Fix index out of bounds in DCN30 degamma hardware format translation
First published: Mon Oct 21 2024(Updated: )
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
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <5.10.227 | |
| Linux Linux kernel | >=5.11<5.15.168 | |
| Linux Linux kernel | >=5.16<6.1.113 | |
| Linux Linux kernel | >=6.2<6.6.55 | |
| Linux Linux kernel | >=6.7<6.10.14 | |
| Linux Linux kernel | >=6.11<6.11.3 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 |
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Reference Links
- https://git.kernel.org/stable/c/0d38a0751143afc03faef02d55d31f70374ff843
- https://git.kernel.org/stable/c/ad89f83343a501890cf082c8a584e96b59fe4015
- https://git.kernel.org/stable/c/bc50b614d59990747dd5aeced9ec22f9258991ff
- https://git.kernel.org/stable/c/c4fdc2d6fea129684b82bab90bb52fbace494a58
- https://git.kernel.org/stable/c/de6ee4f9e6b1c36b4fdc7c345c1a6de9e246093e
- https://git.kernel.org/stable/c/f3ccd855b4395ce65f10dd37847167f52e122b70
- https://git.kernel.org/stable/c/f5c3d306de91a4b69cfe3eedb72b42d452593e42
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49895
- https://nvd.nist.gov/vuln/detail/CVE-2024-49895
- https://launchpad.net/bugs/cve/CVE-2024-49895
- https://security-tracker.debian.org/tracker/CVE-2024-49895
- https://ubuntu.com/security/CVE-2024-49895
- https://git.kernel.org/linus/bc50b614d59990747dd5aeced9ec22f9258991ff
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