From: Dave Chinner <david@fromorbit.com>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: linux-xfs@vger.kernel.org,
Allison Collins <allison.henderson@oracle.com>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 5/7] xfs: check owner of dir3 free blocks
Date: Wed, 11 Mar 2020 16:47:44 +1100 [thread overview]
Message-ID: <20200311054744.GY10776@dread.disaster.area> (raw)
In-Reply-To: <158388766642.939165.18097752003465610656.stgit@magnolia>
On Tue, Mar 10, 2020 at 05:47:46PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@oracle.com>
>
> Check the owner field of dir3 free block headers and reject the metadata
> if there's something wrong with it.
>
> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> Reviewed-by: Allison Collins <allison.henderson@oracle.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
> fs/xfs/libxfs/xfs_dir2_node.c | 2 ++
> 1 file changed, 2 insertions(+)
>
>
> diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c
> index bbd478ec75c9..6ac4aad98cd7 100644
> --- a/fs/xfs/libxfs/xfs_dir2_node.c
> +++ b/fs/xfs/libxfs/xfs_dir2_node.c
> @@ -194,6 +194,8 @@ xfs_dir3_free_header_check(
> return __this_address;
> if (be32_to_cpu(hdr3->nvalid) < be32_to_cpu(hdr3->nused))
> return __this_address;
> + if (be64_to_cpu(hdr3->hdr.owner) != dp->i_ino)
> + return __this_address;
> } else {
> struct xfs_dir2_free_hdr *hdr = bp->b_addr;
Yup.
Reviewed-by: Dave Chinner <dchinner@redhat.com>
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2020-03-11 5:47 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-11 0:47 [PATCH v2 0/7] xfs: fix errors in various verifiers Darrick J. Wong
2020-03-11 0:47 ` [PATCH 1/7] xfs: add a function to deal with corrupt buffers post-verifiers Darrick J. Wong
2020-03-11 5:35 ` Dave Chinner
2020-03-11 16:42 ` Darrick J. Wong
2020-03-11 18:25 ` [PATCH v2 " Darrick J. Wong
2020-03-12 4:37 ` Dave Chinner
2020-03-12 4:55 ` Darrick J. Wong
2020-03-11 0:47 ` [PATCH 2/7] xfs: xfs_buf_corruption_error should take __this_address Darrick J. Wong
2020-03-11 5:36 ` Dave Chinner
2020-03-11 0:47 ` [PATCH 3/7] xfs: fix buffer corruption reporting when xfs_dir3_free_header_check fails Darrick J. Wong
2020-03-11 5:39 ` Dave Chinner
2020-03-11 0:47 ` [PATCH 4/7] xfs: don't ever return a stale pointer from __xfs_dir3_free_read Darrick J. Wong
2020-03-11 5:47 ` Dave Chinner
2020-03-11 0:47 ` [PATCH 5/7] xfs: check owner of dir3 free blocks Darrick J. Wong
2020-03-11 5:47 ` Dave Chinner [this message]
2020-03-11 0:47 ` [PATCH 6/7] xfs: check owner of dir3 data blocks Darrick J. Wong
2020-03-11 5:51 ` Dave Chinner
2020-03-11 0:47 ` [PATCH 7/7] xfs: check owner of dir3 blocks Darrick J. Wong
2020-03-11 5:52 ` Dave Chinner
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