From: DJ Delorie <dj@delorie.com>
Date: Tue, 31 Jan 2017 21:23:57 +0000 (-0500)
Subject: Fix boundary error
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3a93781c77ef510ad60720479b74c8b597d51a55;p=thirdparty%2Fglibc.git

Fix boundary error
---

diff --git a/malloc/malloc.c b/malloc/malloc.c
index d19fa03a1a2..197fe0c7bec 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -1791,7 +1791,7 @@ static struct malloc_par mp_ =
   ,
   .tcache_count = TCACHE_FILL_COUNT,
   .tcache_max = TCACHE_IDX,
-  .tcache_max_bytes = tidx2usize (TCACHE_IDX),
+  .tcache_max_bytes = tidx2usize (TCACHE_IDX-1),
   .tcache_unsorted_limit = 0 /* No limit */
 #endif
 };
@@ -3632,9 +3632,9 @@ _int_malloc (mstate av, size_t bytes)
 
 #if USE_TCACHE
   INTERNAL_SIZE_T tcache_nb = 0;
-  if (csize2tidx (nb) <= mp_.tcache_max)
-    tcache_nb = nb;
   size_t tc_idx = csize2tidx (nb);
+  if (tc_idx < mp_.tcache_max)
+    tcache_nb = nb;
   int return_cached = 0;
 
   tcache_unsorted_count = 0;