CVE-2024-50016: drm/amd/display: Avoid overflow assignment in link_dp_cts

First published: Mon Oct 21 2024(Updated: )

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Avoid overflow assignment in link_dp_cts sampling_rate is an uint8_t but is assigned an unsigned int, and thus it can overflow. As a result, sampling_rate is changed to uint32_t. Similarly, LINK_QUAL_PATTERN_SET has a size of 2 bits, and it should only be assigned to a value less or equal than 4. This fixes 2 INTEGER_OVERFLOW issues reported by Coverity.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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