Merge remote-tracking branch 'remotes/kvaneesh/for-upstream' into staging

Merge remote-tracking branch 'remotes/kvaneesh/for-upstream' into staging

* remotes/kvaneesh/for-upstream:
  virtio: Fix memory leaks reported by Coverity
  virtfs-proxy: Fix possible overflow
  fsdev/virtfs-proxy-helper: Fix improper use of negative value
  hw/9pfs/virtio-9p-posix-acl: Fix out-of-bounds access
  9pfs-proxy: tiny cleanups in proxy_pwritev and proxy_preadv
  9pfs-local: simplify/optimize local_mapped_attr_path()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>