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Change History

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

drm/nouveau: fix a use-after-free in r535_gsp_rpc_push()

The RPC container is released after being passed to r535_gsp_rpc_send().

When sending the initial fragment of a large RPC and passing the
caller's RPC container, the container will be freed prematurely. Subsequent
attempts to send remaining fragments will therefore result in a
use-after-free.

Allocate a temporary RPC container for holding the initial fragment of a
large RPC when sending. Free the caller's container when all fragments
are successfully sent.

[ Rebase onto Blackwell changes. - Danilo ]

https://git.kernel.org/stable/c/9802f0a63b641f4cddb2139c814c2e95cb825099

https://git.kernel.org/stable/c/cd4677407c0ee250fc21e36439c8a442ddd62cc1