In the Linux kernel, the following vulnerability has been resolved: dmaengine: lpc18xx-dmamux: fix device leak on route allocation Make sure to drop the reference taken when looking up the DMA mux platform device during route allocation. Note that holding a reference to a device does not prevent its driver data from going away so there is no point in keeping the reference.
https://git.kernel.org/stable/c/d4d63059dee7e7cae0c4d9a532ed558bc90efb55
https://git.kernel.org/stable/c/9fba97baa520c9446df51a64708daf27c5a7ed32
https://git.kernel.org/stable/c/992eb8055a6e5dbb808672d20d68e60d5a89b12b
https://git.kernel.org/stable/c/1e47d80f6720f0224efd19bcf081d39637569c10