diff options
Diffstat (limited to 'block/stream.c')
| -rw-r--r-- | block/stream.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/block/stream.c b/block/stream.c index 7fe9e486bf..db49b4d85f 100644 --- a/block/stream.c +++ b/block/stream.c @@ -57,6 +57,11 @@ static void close_unused_images(BlockDriverState *top, BlockDriverState *base, BlockDriverState *intermediate; intermediate = top->backing_hd; + /* Must assign before bdrv_delete() to prevent traversing dangling pointer + * while we delete backing image instances. + */ + top->backing_hd = base; + while (intermediate) { BlockDriverState *unused; @@ -70,7 +75,6 @@ static void close_unused_images(BlockDriverState *top, BlockDriverState *base, unused->backing_hd = NULL; bdrv_delete(unused); } - top->backing_hd = base; } static void coroutine_fn stream_run(void *opaque) |