From 8c550973a391222e4c46caf456621288811d4971 Mon Sep 17 00:00:00 2001 From: djm Date: Sat, 23 Aug 2008 06:15:16 +0000 Subject: [PATCH] fix calloc() for MALLOC_OPTIONS=J case: SOME_JUNK was being filled into the freshly mmaped pages disrupting their pure zeroness; ok otto@ deraadt@ --- lib/libc/stdlib/malloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/libc/stdlib/malloc.c b/lib/libc/stdlib/malloc.c index 4379e091574..711c8470efa 100644 --- a/lib/libc/stdlib/malloc.c +++ b/lib/libc/stdlib/malloc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: malloc.c,v 1.95 2008/08/22 21:25:10 otto Exp $ */ +/* $OpenBSD: malloc.c,v 1.96 2008/08/23 06:15:16 djm Exp $ */ /* * Copyright (c) 2008 Otto Moerbeek * @@ -1085,7 +1085,7 @@ omalloc(size_t sz, int zero_fill) malloc_guarded += malloc_guard; } if (malloc_junk) - memset(p, SOME_JUNK, psz - malloc_guard); + memset(p + sz, SOME_JUNK, psz - sz - malloc_guard); /* shift towards the end */ if (malloc_move && -- 2.20.1