Re: [PATCH v3] net: vmw_vsock: vmci: Check memcpy_from_msg()

[Stefano Garzarella]

On Mon, Dec 05, 2022 at 02:52:00PM +0300, Artem Chernyshev wrote:
> vmci_transport_dgram_enqueue() does not check the return value
> of memcpy_from_msg(). Return with an error if the memcpy fails.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Fixes: 0f7db23a07af ("vmci_transport: switch ->enqeue_dgram, ->enqueue_stream and ->dequeue_stream to msghdr")
> Signed-off-by: Artem Chernyshev <artem.chernyshev@xxxxxxxxxxx>
> ---
> V1->V2 Fix memory leaking and updates for description
> V2->V3 Return the value of memcpy_from_msg()
>
> net/vmw_vsock/vmci_transport.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)

Reviewed-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>