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Change History

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

spi: uniphier: fix reference count leak in uniphier_spi_probe()

The issue happens in several error paths in uniphier_spi_probe().
When either dma_get_slave_caps() or devm_spi_register_master() returns
an error code, the function forgets to decrease the refcount of both
`dma_rx` and `dma_tx` objects, which may lead to refcount leaks.

Fix it by decrementing the reference count of specific objects in
those error paths.

kernel.org https://git.kernel.org/stable/c/37c2c83ca4f1ef4b6908181ac98e18360af89b42 [No types assigned]

kernel.org https://git.kernel.org/stable/c/447c3d4046d7b54052d07d8b27e15e6edea5662c [No types assigned]

kernel.org https://git.kernel.org/stable/c/dd00b4f8f768d81c3788a8ac88fdb3d745e55ea3 [No types assigned]

kernel.org https://git.kernel.org/stable/c/e895e067d73e154b1ebc84a124e00831e311d9b0 [No types assigned]