From: Darrick J. Wong <djwong@xxxxxxxxxx> V4 symlink blocks didn't have headers, so return early if this is a V4 filesystem. Cc: <stable@xxxxxxxxxxxxxxx> # v5.1 Fixes: 39708c20ab5133 ("xfs: miscellaneous verifier magic value fixups") Signed-off-by: "Darrick J. Wong" <djwong@xxxxxxxxxx> --- fs/xfs/libxfs/xfs_symlink_remote.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/xfs/libxfs/xfs_symlink_remote.c b/fs/xfs/libxfs/xfs_symlink_remote.c index f228127a88ff26..fb47a76ead18c2 100644 --- a/fs/xfs/libxfs/xfs_symlink_remote.c +++ b/fs/xfs/libxfs/xfs_symlink_remote.c @@ -92,8 +92,10 @@ xfs_symlink_verify( struct xfs_mount *mp = bp->b_mount; struct xfs_dsymlink_hdr *dsl = bp->b_addr; + /* no verification of non-crc buffers */ if (!xfs_has_crc(mp)) - return __this_address; + return NULL; + if (!xfs_verify_magic(bp, dsl->sl_magic)) return __this_address; if (!uuid_equal(&dsl->sl_uuid, &mp->m_sb.sb_meta_uuid))