Memory Leak in Linux Kernel Affecting MT76 Driver

CVE-2023-53430

What is CVE-2023-53430?

A memory leak vulnerability has been identified in the Linux kernel within the MT76 driver, specifically related to the DMA transmission cleanup process. This issue arises when device unregistration does not consistently free up allocated memory for RX queues during the mt76_dma_tx_cleanup routine, leading to potential resource exhaustion and performance degradation. The vulnerability has been addressed by ensuring all configured RX queues are properly cleaned up, thus enhancing system stability and memory management.

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