From: Darrick J. Wong <djwong@kernel.org>
Date: Tue, 9 Jul 2024 14:17:56 +0000 (-0700)
Subject: xfs: validate inumber in xfs_iget
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=debbd59c33a84ff9315a5b105175d9ddcec95fb5;p=users%2Fhch%2Fmisc.git

xfs: validate inumber in xfs_iget

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>
---

diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 9967334ea99f..42a1d2e8cd56 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -754,7 +754,7 @@ 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);