diff options
| -rw-r--r-- | fs/xfs/xfs_extfree_item.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c index efafa311b2b6..3226714572b2 100644 --- a/fs/xfs/xfs_extfree_item.c +++ b/fs/xfs/xfs_extfree_item.c @@ -582,14 +582,14 @@ xfs_efi_validate_ext( struct xfs_mount *mp, struct xfs_extent *extp) { - xfs_fsblock_t startblock_fsb; - - startblock_fsb = XFS_BB_TO_FSB(mp, - XFS_FSB_TO_DADDR(mp, extp->ext_start)); - if (startblock_fsb == 0 || - extp->ext_len == 0 || - startblock_fsb >= mp->m_sb.sb_dblocks || - extp->ext_len >= mp->m_sb.sb_agblocks) + xfs_fsblock_t end; + + if (extp->ext_start + extp->ext_len <= extp->ext_start) + return false; + + end = extp->ext_start + extp->ext_len - 1; + if (!xfs_verify_fsbno(mp, extp->ext_start) || + !xfs_verify_fsbno(mp, end)) return false; return true; |