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-rw-r--r--libc/stdlib/malloc/malloc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libc/stdlib/malloc/malloc.c b/libc/stdlib/malloc/malloc.c
index f4bbc71a2..337206f09 100644
--- a/libc/stdlib/malloc/malloc.c
+++ b/libc/stdlib/malloc/malloc.c
@@ -124,7 +124,7 @@ __malloc_from_heap (size_t size, struct heap_free_area **heap
MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
#else
block = mmap ((void *)0, block_size, PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_ANONYMOUS, 0, 0);
+ MAP_SHARED | MAP_ANONYMOUS | MAP_UNINITIALIZE, 0, 0);
#endif
#endif /* MALLOC_USE_SBRK */