CVE-2021-47064

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the mt76 dma tx queue skb raw function in the Linux kernel's mt76 component. It involves a potential DMA mapping leak due to the buf being uninitialized, which could cause its skip unmap field to inherit a non-zero value from stack garbage. This may lead to DMA mappings for MCU command frames not being unmapped after completion, potentially allowing an attacker to gain unauthorized access to protected information.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.