[Qemu-stable] [PATCH stable-0.15 16/36] vvfat: Fix potential buffer overflow

[Andreas Färber]

From: Kevin Wolf <address@hidden>

path2[PATH_MAX] can be used for the null termination, so make the array big
enough to allow this.

Signed-off-by: Kevin Wolf <address@hidden>
(cherry picked from commit 0d460d6f414e02805cbc348404db03b2b7907360)

Signed-off-by: Bruce Rogers <address@hidden>
Signed-off-by: Andreas Färber <address@hidden>
---
 block/vvfat.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/block/vvfat.c b/block/vvfat.c
index fe568fe..98b58f0 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -1741,7 +1741,7 @@ static int check_directory_consistency(BDRVVVFATState *s,
 
     long_file_name lfn;
     int path_len = strlen(path);
-    char path2[PATH_MAX];
+    char path2[PATH_MAX + 1];
 
     assert(path_len < PATH_MAX); /* len was tested before! */
     pstrcpy(path2, sizeof(path2), path);
-- 
1.7.7