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.

https://git.kernel.org/stable/c/5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf

https://git.kernel.org/stable/c/66f8bfea055b23719b4fd6ce207c44de37d82a59

https://git.kernel.org/stable/c/6dd5c0ea139b586ad5a091677056dafd405cfe82

https://git.kernel.org/stable/c/6fe472c1bbbe238e91141f7cabc1226e96a60d43

https://git.kernel.org/stable/c/760df81763b391bb5f0dcb0b7597b736da753ae4

https://git.kernel.org/stable/c/d846df2dfbc2469a688833b4cc4f8aa80672bde8

https://git.kernel.org/stable/c/d8d53a343ebe74274ca17b1e1993042e99f8c863

https://git.kernel.org/stable/c/daea997bb244aeb50cbb2e5e075fb446a6cf068f

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