In the Linux kernel, the following vulnerability has been resolved: spi: qup: fix error pointer deref after DMA setup failure The driver falls back to PIO mode if DMA setup fails during probe. Make sure to the clear the DMA channel pointers on setup failure to avoid dereferencing an error pointer (or attempting to release a channel a second time) on later probe errors or driver unbind. This issue was flagged by Sashiko when reviewing a devres allocation conversion patch.
https://git.kernel.org/stable/c/d577c55d189e7ae150973058d13e299b6855633f
https://git.kernel.org/stable/c/a7e8f3efd50a165ba0189f6dc57f7e51a7d149db
https://git.kernel.org/stable/c/9e673affb92c29d9ba879bf4ea81c5e840166b56
https://git.kernel.org/stable/c/8f9b61d255b1e989b8913b06c8ebe0aba5e1b238
https://git.kernel.org/stable/c/4f4051e9d644c371c50de4a042b85bba6727d5c3
https://git.kernel.org/stable/c/4bb4764f2c51f03f657a28029eb0595d8223aab5
https://git.kernel.org/stable/c/45760b72e84c1a1498f1a8a9047184c85299da20
https://git.kernel.org/stable/c/0bb3bd442f0bdad3932739a61dd6c580c9c1955e