[Qemu-block] [PULL 18/21] vvfat: initialize memory after allocating it

[Kevin Wolf]

From: Hervé Poussineau <address@hidden>

This prevents some host to guest memory content leaks.

Fixes: https://bugs.launchpad.net/qemu/+bug/1599539

Signed-off-by: Hervé Poussineau <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
 block/vvfat.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/block/vvfat.c b/block/vvfat.c
index ea7775f..6b11596 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -115,6 +115,7 @@ static inline int array_ensure_allocated(array_t* array, 
int index)
         array->pointer = g_realloc(array->pointer, new_size);
         if (!array->pointer)
             return -1;
+        memset(array->pointer + array->size, 0, new_size - array->size);
         array->size = new_size;
         array->next = index + 1;
     }
-- 
1.8.3.1