From: Ming Lei ming.lei@redhat.com
[ Upstream commit 8535c0185d14ea41f0efd6a357961b05daf6687e ]
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: e83502ca5f1e ("block: fix argument type of bio_trim()") Cc: Chaitanya Kulkarni chaitanya.kulkarni@wdc.com Signed-off-by: Ming Lei ming.lei@redhat.com Link: https://lore.kernel.org/r/20220414084443.1736850-1-ming.lei@redhat.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- block/bio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/bio.c b/block/bio.c index 1be1e360967d..342b1cf5d713 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1570,7 +1570,7 @@ 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;