commit 1724535fb4ebf6b6ff1b3ac06f7dcaf5cb36da78
author Christopher Ferris <cferris@google.com> Fri Feb 19 18:13:29 2016 -0800
committer Christopher Ferris <cferris@google.com> Tue Feb 23 18:11:14 2016 -0800
tree 7740ae83ee9cf0abfe86c96d001bbca380a8157f
parent b7ff533ed28f82c0981b83ae80e8bc8e3f350d0f

Fix incorrect size of array.

When using sscanf and "%4s", the array passed in must include space for
a nul terminator.

Bug: 26739265

(cherry picked from commit f499dc91e774db4cb9d21f9a7c34704fa9b7ed39)

Change-Id: I8aac6fca3e5bc7a6399e2ed9c6ba4140a55ffdee

libc/malloc_debug/MapData.cpp

diff --git a/libc/malloc_debug/MapData.cpp b/libc/malloc_debug/MapData.cpp
index 8e9c806..d57017e 100644
--- a/libc/malloc_debug/MapData.cpp
+++ b/libc/malloc_debug/MapData.cpp
@@ -44,7 +44,7 @@
   uintptr_t start;
   uintptr_t end;
   uintptr_t offset;
-  char permissions[4];
+  char permissions[5];
   int name_pos;
   if (sscanf(line, "%" PRIxPTR "-%" PRIxPTR " %4s %" PRIxPTR " %*x:%*x %*d %n", &start,
              &end, permissions, &offset, &name_pos) < 2) {