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-rw-r--r--libio/wmemstream.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libio/wmemstream.c b/libio/wmemstream.c
index 1709f2dd33..85ea64991a 100644
--- a/libio/wmemstream.c
+++ b/libio/wmemstream.c
@@ -83,7 +83,7 @@ open_wmemstream (bufloc, sizeloc)
   new_f->fp._sf._sbf._f._lock = &new_f->lock;
 #endif
 
-  buf = malloc (_IO_BUFSIZ);
+  buf = calloc (1, _IO_BUFSIZ);
   if (buf == NULL)
     return NULL;