[PATCH 1/3] xfs: validate inumber in xfs_iget

Darrick J. Wong
2024-08-23T00:01:38Z

From: Darrick J. Wong <djwong@kernel.org>

Actually use the inumber validator to check the argument passed in here.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
---
fs/xfs/xfs_icache.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index cf629302d48e7..887d2a01161e4 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -755,7 +755,7 @@ xfs_iget(
ASSERT((lock_flags & (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED)) == 0);

/* reject inode numbers outside existing AGs */
- if (!ino || XFS_INO_TO_AGNO(mp, ino) >= mp->m_sb.sb_agcount)
+ if (!xfs_verify_ino(mp, ino))
return -EINVAL;

XFS_STATS_INC(mp, xs_ig_attempts);