In the Linux kernel, the following vulnerability has been resolved: tty: serial: pch_uart: add check for dma_alloc_coherent() Add a check for dma_alloc_coherent() failure to prevent a potential NULL pointer dereference in dma_handle_rx(). Properly release DMA channels and the PCI device reference using a goto ladder if the allocation fails.
| Product | Vendor | Version |
|---|---|---|
| Linux | Linux | < 19.4R1-S4, 19.4R2-S4, 19.4R3-S3 |
| Linux | Linux | < 20.1R2-S2, 20.1R3 |