X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Ftal%2Ftalloc%2Ftalloc.c;h=fbe9b38474e923610bdcfefb39afee113d5ebcdc;hb=cff3316c2f466e69eff336eed3beafac798a2901;hp=ad21b704d2acc5a0e9b386ce6288500614160d81;hpb=d61a0d6c2c9d2b385075338665d64ae1d1bbe3dc;p=ccan

diff --git a/ccan/tal/talloc/talloc.c b/ccan/tal/talloc/talloc.c
index ad21b704..fbe9b384 100644
--- a/ccan/tal/talloc/talloc.c
+++ b/ccan/tal/talloc/talloc.c
@@ -141,6 +141,13 @@ bool tal_talloc_resize_(tal_t **ctxp, size_t size, size_t count)
 		*ctxp = newp;
 		return true;
 	}
+
+	/* count is unsigned, not size_t, so check for overflow here! */
+	if ((unsigned)count != count) {
+		call_error("Resize overflos");
+		return false;
+	}
+
 	newp = _talloc_realloc_array(NULL, *ctxp, size, count, NULL);
 	if (!newp) {
 		call_error("Resize failure");