Messages in this thread | | | Date | Thu, 07 Jun 2018 08:38:52 -0700 | Subject | Re: Re: KMSAN: uninit-value in _copy_to_iter (2) | From | syzbot <> |
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> #syz test: https://github.com/google/kmsan.git/master > d2d741e5d1898dfde1a75ea3d29a9a3e2edf0617
"https://github.com/google/kmsan.git/master" does not look like a valid git repo address.
> Subject: vhost: fix info leak
> Fixes: CVE-2018-1118 > Signed-off-by: Michael S. Tsirkin <mst@redhat.com> > --- > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index f0be5f35ab28..9beefa6ed1ce 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -2345,6 +2345,9 @@ struct vhost_msg_node *vhost_new_msg(struct > vhost_virtqueue *vq, int type) > struct vhost_msg_node *node = kmalloc(sizeof *node, GFP_KERNEL); > if (!node) > return NULL; > + > + /* Make sure all padding within the structure is initialized. */ > + memset(&node->msg, 0, sizeof node->msg); > node->vq = vq; > node->msg.type = type; > return node;
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