Re: [PATCH v1] misc: fastrpc: Reset metadata buffer to avoid incorrect free

Greg KH
2023-09-28T13:08:25Z

On Thu, Aug 31, 2023 at 12:05:23PM +0530, Ekansh Gupta wrote:
> Metadata buffer is allocated during get_args for any remote call.
> This buffer carries buffers, fdlists and other payload information
> for the call. If the buffer is not reset, put_args might find some
> garbage FDs in the fdlist which might have an existing mapping in
> the list. This could result in improper freeing of FD map when DSP
> might still be using the buffer. Added change to reset the metadata
> buffer after allocation.
>
> Signed-off-by: Ekansh Gupta <quic_ekangupt@quicinc.com>

What commit id does this fix?

And you sent 3 patches, but not in a list, what order are they to be
applied in?

thanks,

greg k-h