CVE-2024-49894: drm/amd/display: Fix index out of bounds in 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 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
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <5.10.227 | |
| Linux Kernel | >=5.11<5.15.168 | |
| Linux Kernel | >=5.16<6.1.113 | |
| Linux Kernel | >=6.2<6.6.55 | |
| Linux Kernel | >=6.7<6.10.14 | |
| Linux Kernel | >=6.11<6.11.3 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/07078fa5d589a7fbce8f81ea8acf7aa0021ab38e
- https://git.kernel.org/stable/c/122e3a7a8c7bcbe3aacddd6103f67f9f36bed473
- https://git.kernel.org/stable/c/2495c8e272d84685403506833a664fad932e453a
- https://git.kernel.org/stable/c/2f5da549535be8ccd2ab7c9abac8562ad370b181
- https://git.kernel.org/stable/c/b3dfa878257a7e98830b3009ca5831a01d8f85fc
- https://git.kernel.org/stable/c/b7e99058eb2e86aabd7a10761e76cae33d22b49f
- https://git.kernel.org/stable/c/c130a3c09e3746c1a09ce26c20d21d449d039b1d
- https://git.kernel.org/stable/c/c6979719012a90e5b8e3bc31725fbfdd0b9b2b79
- https://git.kernel.org/stable/c/f5f6d90087131812c1e4b9d3103f400f1624396d
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49894
- https://nvd.nist.gov/vuln/detail/CVE-2024-49894
- https://launchpad.net/bugs/cve/CVE-2024-49894
- https://security-tracker.debian.org/tracker/CVE-2024-49894
- https://ubuntu.com/security/CVE-2024-49894
- https://git.kernel.org/linus/b7e99058eb2e86aabd7a10761e76cae33d22b49f
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