diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2020-02-27 09:54:00 -0800 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-03-03 18:47:33 -0800 |
| commit | 851dbb2162dad45d1bc4b403c61cbd333b0690be (patch) | |
| tree | bd72462e8bc031196bacc0e238e043dfcd78b7d5 | |
| parent | 3f02b2cec001a28fb0200502062948ce4f4d81f5 (diff) | |
xfs: check owner of dir3 free blocks
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>
| -rw-r--r-- | fs/xfs/libxfs/xfs_dir2_node.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c index a988bbcd0c86..029b2c151256 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; |