CVE-2021-47348

CRITICAL Year: 2021
CVSS v3 Score
9.1
Critical
Weakness Type
CWE-119
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Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Avoid HDCP over-read and corruption Instead of reading the desired 5 bytes of the actual target field, the code was reading 8. This could result in a corrupted value if the trailing 3 bytes were non-zero, so instead use an appropriately sized and zero-initialized bounce buffer, and read only 5 bytes before casting to u64.

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