linux-ext4 - [PATCH] libext2fs: fix tst

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Date:	Wed,  9 Sep 2015 18:01:29 -0600
From:	Andreas Dilger <adilger@...ger.ca>
To:	tytso@....edu
Cc:	linux-ext4@...r.kernel.org, Andreas Dilger <adilger@...ger.ca>
Subject: [PATCH] libext2fs: fix tst_badblocks buffer overrun

The test2[] array is not 0-terminated and the create_test_list() for
loop does not terminate properly at the end of this array, but
continues until it hits the 0 at the end of test3[].

Reported-by: Hanno Boeck <hanno@...eck.de>
Addresses: https://bugzilla.kernel.org/show_bug.cgi?id=104311
Signed-off-by: Andreas Dilger <adilger@...ger.ca>
---
 lib/ext2fs/tst_badblocks.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/ext2fs/tst_badblocks.c b/lib/ext2fs/tst_badblocks.c
index 3b39ef1..c685f33 100644
--- a/lib/ext2fs/tst_badblocks.c
+++ b/lib/ext2fs/tst_badblocks.c
@@ -30,11 +30,11 @@
 #define DEL_BLK	0x0002
 
 blk_t test1[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 0 };
-blk_t test2[] = { 11, 10, 9, 8, 7, 6, 5, 4, 3, 3, 2, 1 };
+blk_t test2[] = { 11, 10, 9, 8, 7, 6, 5, 4, 3, 3, 2, 1, 0 };
 blk_t test3[] = { 3, 1, 4, 5, 9, 2, 7, 10, 5, 6, 10, 8, 0 };
 blk_t test4[] = { 20, 50, 12, 17, 13, 2, 66, 23, 56, 0 };
 blk_t test4a[] = {
- 	20, 1,
+	20, 1,
 	50, 1,
 	3, 0,
 	17, 1,
-- 
1.8.0

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