Fix memset call in stack.c

The function sk_zero is supposed to zero the elements held within a stack.
It uses memset to do this. However it calculates the size of each element
as being sizeof(char **) instead of sizeof(char *). This probably doesn't
make much practical difference in most cases, but isn't a portable
assumption.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 7132ac830fa08d9a936e011d7c541b0c52115b33)

diff --git a/crypto/stack/stack.c b/crypto/stack/stack.c
index 47457c722db820195eaf8bef92142a9a870d1150..de437acf6a5cb6ce15984cabb243b381143eed67 100644 (file)
--- a/crypto/stack/stack.c
+++ b/crypto/stack/stack.c
@@ -312,7 +312,7 @@ void sk_zero(_STACK *st)
         return;
     if (st->num <= 0)
         return;
-    memset((char *)st->data, 0, sizeof(st->data) * st->num);
+    memset((char *)st->data, 0, sizeof(*st->data) * st->num);
     st->num = 0;
 }