From b2d5ec823a922b4710cad15283d589b2142b9fd8 Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Tue, 30 Jun 2020 10:24:50 -0400
Subject: fix off-by-one in mprotect() section

---
 src/mapalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/mapalloc.c b/src/mapalloc.c
index 00af064..69e87fe 100644
--- a/src/mapalloc.c
+++ b/src/mapalloc.c
@@ -70,7 +70,7 @@ void *map_malloc(size_t n)
 	}
 
 	mprotect(ptr, PAGESIZE, PROT_NONE);
-	mprotect((char*)ptr + alloc - (2 * PAGESIZE), PAGESIZE, PROT_NONE);
+	mprotect((char*)ptr + alloc - PAGESIZE, PAGESIZE, PROT_NONE);
 
 	/*
 	struct bucket *b = get_bucket(ptr);
-- 
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