Hello.

On 01/07/2015 11:55 AM, Michael S. Tsirkin wrote:

commit 8b38694a2dc8b18374310df50174f1e4376d6824
     vhost/net: virtio 1.0 byte swap
had this chunk:
-       heads[headcount - 1].len += datalen;
+       heads[headcount - 1].len = cpu_to_vhost32(vq, len - datalen);

This adds datalen with the wrong sign, causing guest panics.

Fixes: 8b38694a2dc8b18374310df50174f1e4376d6824

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Reported-by: Alex Williamson <[email protected]>
Suggested-by: Greg Kurz <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>

WBR, Sergei

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