[PATCH 6.6 003/140] xfs: validate inumber in xfs_iget
Greg Kroah-Hartman <[email protected]> Mon, 24 Feb 2025 15:33:22 +0100
| Newsgroups | dev.linux.lists.xfs-stable,dev.linux.lists.patches,org.kernel.vger.stable |
|---|---|
| Message-ID | <[email protected]> |
6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: "Darrick J. Wong" <[email protected]> commit 05aba1953f4a6e2b48e13c610e8a4545ba4ef509 upstream. Actually use the inumber validator to check the argument passed in here. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Reviewed-by: Dave Chinner <[email protected]> Signed-off-by: Catherine Hoang <[email protected]> Acked-by: Darrick J. Wong <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- fs/xfs/xfs_icache.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/xfs/xfs_icache.c +++ b/fs/xfs/xfs_icache.c @@ -748,7 +748,7 @@ 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);