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    SubjectRe: KMSAN: uninit-value in _copy_to_iter (2)
    On Thu, Jun 7, 2018 at 5:38 PM, Michael S. Tsirkin <mst@redhat.com> wrote:
    > #syz test: https://github.com/google/kmsan.git/master d2d741e5d1898dfde1a75ea3d29a9a3e2edf0617

    Hi Michael,

    We need:

    #syz test: https://github.com/google/kmsan.git master

    here. Please see
    https://github.com/google/syzkaller/blob/master/docs/syzbot.md#testing-patches
    for more info.

    Please also add the Reported-by tag when mailing the patch for review.

    Thanks

    > 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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