[PATCHv4 10/10] blk-integrity: improved sg segment mapping

[Keith Busch]

On Wed, Sep 11, 2024 at 01:12:40PM -0700, Keith Busch wrote:
> @@ -102,6 +103,12 @@ int blk_rq_map_integrity_sg(struct request_queue *q, struct bio *bio,
> +	 */
> +	BUG_ON(segments > blk_rq_nr_phys_segments(rq));

Doh, this was mixed up with the copy from blk_rq_map_sg. It should say:

	BUG_ON(segments > blk_rq_nr_integrity_segments(rq));

Question though, blk_rq_map_sg uses WARN and scsi used BUG for this
check. But if the condition is true, a buffer overrun occured. So BUG,
right?