CVE-2023-54020 dmaengine: sf-pdma: pdma_desc memory leak fix

In the Linux kernel, the following vulnerability has been resolved: dmaengine: sf-pdma: pdmadesc memory leak fix Commit b2cc5c465c2c "dmaengine: sf-pdma: Add multithread support for a DMA channel" changed sfpdmaprepdmamemcpy to unconditionally allocate a new sfpdmadesc each time it is called. The...