MFC r315162:

libc: provide some bounds-checking through reallocarray(3).

reallocarray(3) is a non portable extension that originated in OpenBSD.
Given that it is already in FreeBSD's libc it is useful for the cases
where reallocation involves a multiplication.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/libc/stdio/printf-pos.c b/lib/libc/stdio/printf-pos.c
index 3a47649..38cf014 100644
--- a/lib/libc/stdio/printf-pos.c
+++ b/lib/libc/stdio/printf-pos.c
@@ -633,7 +633,7 @@ __grow_type_table(struct typetable *types)
 			return (-1);
 		bcopy(oldtable, newtable, oldsize * sizeof(enum typeid));
 	} else {
-		newtable = realloc(oldtable, newsize * sizeof(enum typeid));
+		newtable = reallocarray(oldtable, newsize, sizeof(enum typeid));
 		if (newtable == NULL)
 			return (-1);
 	}