diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2021-03-08 11:46:28 -0800 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2021-03-25 17:08:14 -0700 |
| commit | 9162a77c9b91d88f516cd89e3bba17f541beb325 (patch) | |
| tree | e81c3fa55a5e6b8931773507b3ce298526a02049 /fs/xfs/libxfs/xfs_alloc.c | |
| parent | a73964f2e686a00acc739d35a8bfa7643f88778f (diff) | |
xfs: validate ag btree levels using the precomputed valuesrandom-fixes_2021-03-25
Use the AG btree height limits that we precomputed into the xfs_mount to
validate the AG headers instead of using XFS_BTREE_MAXLEVELS.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/libxfs/xfs_alloc.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_alloc.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index 0c623d3c1036..aaa19101bb2a 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -2906,13 +2906,13 @@ xfs_agf_verify( if (be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) < 1 || be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) < 1 || - be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) > XFS_BTREE_MAXLEVELS || - be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > XFS_BTREE_MAXLEVELS) + be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) > mp->m_ag_maxlevels || + be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > mp->m_ag_maxlevels) return __this_address; if (xfs_sb_version_hasrmapbt(&mp->m_sb) && (be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) < 1 || - be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) > XFS_BTREE_MAXLEVELS)) + be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) > mp->m_rmap_maxlevels)) return __this_address; if (xfs_sb_version_hasrmapbt(&mp->m_sb) && @@ -2939,7 +2939,7 @@ xfs_agf_verify( if (xfs_sb_version_hasreflink(&mp->m_sb) && (be32_to_cpu(agf->agf_refcount_level) < 1 || - be32_to_cpu(agf->agf_refcount_level) > XFS_BTREE_MAXLEVELS)) + be32_to_cpu(agf->agf_refcount_level) > mp->m_refc_maxlevels)) return __this_address; return NULL; |