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| author | YueHaibing <yuehaibing@huawei.com> | 2019-03-12 10:06:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-16 20:35:39 +0300 |
| commit | 037ca765796fec2a7becc14c75c0ebcfb57be0c0 (patch) | |
| tree | 5c3f346acb5f9b110217106ba5559d75ffd0710b /drivers/virtio | |
| parent | 665c4bdd5736977cb01ee6f5efd76f6df9d6b303 (diff) | |
| download | linux-037ca765796fec2a7becc14c75c0ebcfb57be0c0.tar.xz | |
virtio_ring: Fix potential mem leak in virtqueue_add_indirect_packed
commit df0bfe7501e9319546ea380d39674a4179e059c3 upstream.
'desc' should be freed before leaving from err handing path.
Fixes: 1ce9e6055fa0 ("virtio_ring: introduce packed ring support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/virtio')
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 5df92c308286..021010424fa5 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -1004,6 +1004,7 @@ static int virtqueue_add_indirect_packed(struct vring_virtqueue *vq, if (unlikely(vq->vq.num_free < 1)) { pr_debug("Can't add buf len 1 - avail = 0\n"); + kfree(desc); END_USE(vq); return -ENOSPC; } |