Re: [PATCH] xfs: fix inobt magic number check

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On 5/24/18 10:55 AM, Darrick J. Wong wrote:
From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

In commit a6a781a58befcbd467c ("xfs: have buffer verifier functions
report failing address") the bad magic number return was ported
incorrectly.

Fixes: a6a781a58befcbd467ce843af4eaca3906aa1f08
Reported-by: syzbot+08ab33be0178b76851c8@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

Reviewed-by: Eric Sandeen <sandeen@xxxxxxxxxx>

---
  fs/xfs/libxfs/xfs_ialloc_btree.c |    2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c
index ba053a4c124f..b04c55512159 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.c
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.c
@@ -296,7 +296,7 @@ xfs_inobt_verify(
  	case cpu_to_be32(XFS_FIBT_MAGIC):
  		break;
  	default:
-		return NULL;
+		return __this_address;
  	}
/* level verification */
--
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