On Wed, Aug 31, 2022 at 05:01:11PM +0200, Maxime Coquelin wrote:

On 8/29/22 09:48, Greg KH wrote:

quoted

On Mon, Aug 29, 2022 at 09:34:24AM +0200, Maxime Coquelin wrote:

quoted

If the VDUSE application provides a smaller config space
than the driver expects, the driver may use uninitialized
memory from the stack.

This patch prevents it by initializing the buffer passed by
the driver to store the config value.

This fix addresses CVE-2022-2308.

Cc: xieyongji@bytedance.com
Cc: stable@vger.kernel.org # v5.15+
Fixes: c8a6153b6c59 ("vduse: Introduce VDUSE - vDPA Device in Userspace")

Acked-by: Jason Wang <redacted>
Signed-off-by: Maxime Coquelin <redacted>

Please no blank line above the Acked-by: line here if possible.

Sure.

Jason, do you prefer I post a new revision with this single change or
you will handle it while applying? Either way is fine to me.

Thanks,
Maxime

Repost pls, easier.

quoted

thanks,

greg k-h

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