In the Linux kernel, the following vulnerability has been resolved:

dmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK

The DONE_INT_MASK and ABORT_INT_MASK registers are shared by all DMA
channels, and modifying them requires a read-modify-write sequence.
Because this operation is not atomic, concurrent calls to
dw_edma_v0_core_start() can introduce race conditions if two channels
update these registers simultaneously.

Add a spinlock to serialize access to these registers and prevent race
conditions.

[den: update dw_edma.lock comment]

https://git.kernel.org/stable/c/1553ca96e9df158d8f37137cf4bf5fb0dc981d94

https://git.kernel.org/stable/c/21a9834f56d6249aaa6ca7c2d8c182d66c48c3e1

https://git.kernel.org/stable/c/2247cc25a91fb1b5b86586ed55fdd5b725a7477c

https://git.kernel.org/stable/c/3ee0f478bb29b4ee892b178179a9a76ddd194149

https://git.kernel.org/stable/c/8ffba0171c6bbce5f093c6dba5a02c0805b31203

https://git.kernel.org/stable/c/ddbc4a8a4fe296f1fa2e59f7d176fc7c773df640

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