From: Arran Cudbard-Bell <a.cudbardb@freeradius.org>
Date: Sun, 5 Aug 2018 23:05:18 +0000 (-0400)
Subject: Bad arithmetic in talloc_page_aligned_pool
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e2fd22a40ecf9df653a269c4aa9fdb0fc493cadd;p=thirdparty%2Ffreeradius-server.git

Bad arithmetic in talloc_page_aligned_pool
---

diff --git a/src/lib/util/talloc.c b/src/lib/util/talloc.c
index 6605920f11b..e2ce6ced439 100644
--- a/src/lib/util/talloc.c
+++ b/src/lib/util/talloc.c
@@ -185,7 +185,7 @@ TALLOC_CTX *talloc_page_aligned_pool(TALLOC_CTX *ctx, void **start, void **end,
 		talloc_free(pool);
 		return NULL;
 	}
-	hdr_size = (uintptr_t)pool - (uintptr_t)chunk;
+	hdr_size = (uintptr_t)chunk - (uintptr_t)pool;
 
 	next = (void *)ROUND_UP((uintptr_t)chunk, page_size);	/* Round up address to the next page */