Merge tag 'vfio-fixes-20211117.0' of git://github.com/awilliam/qemu-vfio into staging

VFIO fixes 2021-11-17

 * Fix hostwin memory leak (Peng Liang)

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* tag 'vfio-fixes-20211117.0' of git://github.com/awilliam/qemu-vfio:
  vfio: Fix memory leak of hostwin

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index dd387b0d39..080046e3f5 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -551,6 +551,7 @@ static int vfio_host_win_del(VFIOContainer *container, hwaddr min_iova,
     QLIST_FOREACH(hostwin, &container->hostwin_list, hostwin_next) {
         if (hostwin->min_iova == min_iova && hostwin->max_iova == max_iova) {
             QLIST_REMOVE(hostwin, hostwin_next);
+            g_free(hostwin);
             return 0;
         }
     }
@@ -2239,6 +2240,7 @@ static void vfio_disconnect_container(VFIOGroup *group)
     if (QLIST_EMPTY(&container->group_list)) {
         VFIOAddressSpace *space = container->space;
         VFIOGuestIOMMU *giommu, *tmp;
+        VFIOHostDMAWindow *hostwin, *next;
 
         QLIST_REMOVE(container, next);
 
@@ -2249,6 +2251,12 @@ static void vfio_disconnect_container(VFIOGroup *group)
             g_free(giommu);
         }
 
+        QLIST_FOREACH_SAFE(hostwin, &container->hostwin_list, hostwin_next,
+                           next) {
+            QLIST_REMOVE(hostwin, hostwin_next);
+            g_free(hostwin);
+        }
+
         trace_vfio_disconnect_container(container->fd);
         close(container->fd);
         g_free(container);