Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
The issue is related to a reference count leak in the `uniphier spi probe()` function. This occurs when either `dma get slave caps()` or `devm spi register master()` returns an error code, causing the function to forget to decrease the refcount of both `dma rx` and `dma tx` objects. This may lead to refcount leaks. The issue happens in several error paths in `uniphier spi probe()`.
Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.