On Tue, Jul 31, 2018 at 04:21:00PM -0700, Darrick J. Wong wrote: > From: Darrick J. Wong <darrick.wong@xxxxxxxxxx> > > Before we start processing what we /think/ is a da3 node block, actually > check the magic to make sure that we're looking at a node block. This > way we won't blow the asserts in _node_hdr_from_disk on corrupted > metadata. > > Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> > --- Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx> > fs/xfs/libxfs/xfs_da_btree.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > > diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c > index 8ffe17b223da..376bee94b5dd 100644 > --- a/fs/xfs/libxfs/xfs_da_btree.c > +++ b/fs/xfs/libxfs/xfs_da_btree.c > @@ -1523,8 +1523,10 @@ xfs_da3_node_lookup_int( > break; > } > > - blk->magic = XFS_DA_NODE_MAGIC; > + if (magic != XFS_DA_NODE_MAGIC && magic != XFS_DA3_NODE_MAGIC) > + return -EFSCORRUPTED; > > + blk->magic = XFS_DA_NODE_MAGIC; > > /* > * Search an intermediate node for a match. > > -- > To unsubscribe from this list: send the line "unsubscribe linux-xfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
