CVE-2023-54020

In CVE-2023-54020, the Linux kernel dmaengine sf-pdma had a memory leak: sf_pdma_prep_dma_memcpy() started allocating a new sf_pdma_desc every call after a multithread patch, but sf_pdma_free_desc() was not freeing the old descriptor. The in_use flag was redundant and the leak could cause memory ...