From 5055ea51303007642d49ed49dcf57f09c3102450 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Thu, 14 Apr 2022 16:44:43 +0800 Subject: [PATCH] block: fix offset/size check in bio_trim() Unit of bio->bi_iter.bi_size is bytes, but unit of offset/size is sector. Fix the above issue in checking offset/size in bio_trim(). Fixes: 524667a5dee3 ("block: fix argument type of bio_trim()") Cc: Chaitanya Kulkarni Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20220414084443.1736850-1-ming.lei@redhat.com Signed-off-by: Jens Axboe --- block/bio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/bio.c b/block/bio.c index cdd7b2915c532..4259125e16ab2 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1598,7 +1598,7 @@ EXPORT_SYMBOL(bio_split); void bio_trim(struct bio *bio, sector_t offset, sector_t size) { if (WARN_ON_ONCE(offset > BIO_MAX_SECTORS || size > BIO_MAX_SECTORS || - offset + size > bio->bi_iter.bi_size)) + offset + size > bio_sectors(bio))) return; size <<= 9; -- 2.39.5