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Diffstat (limited to 'src/malloc/malloc.c')
-rw-r--r--src/malloc/malloc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/malloc/malloc.c b/src/malloc/malloc.c
index ee6f170b..46cc21fb 100644
--- a/src/malloc/malloc.c
+++ b/src/malloc/malloc.c
@@ -333,7 +333,7 @@ void *malloc(size_t n)
if (adjust_size(&n) < 0) return 0;
if (n > MMAP_THRESHOLD) {
- size_t len = n + PAGE_SIZE - 1 & -PAGE_SIZE;
+ size_t len = n + OVERHEAD + PAGE_SIZE - 1 & -PAGE_SIZE;
char *base = __mmap(0, len, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
if (base == (void *)-1) return 0;