From: Kent Overstreet Date: Sat, 8 Mar 2025 15:50:08 +0000 (-0500) Subject: dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature X-Git-Tag: v6.14-rc7~13^2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=57e9417f69839cb10f7ffca684c38acd28ceb57b;p=thirdparty%2Flinux.git dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature Fix memory corruption due to incorrect parameter being passed to bio_init Signed-off-by: Kent Overstreet Signed-off-by: Mikulas Patocka Cc: stable@vger.kernel.org # v6.5+ Fixes: 1d9a94389853 ("dm flakey: clone pages on write bio before corrupting them") --- diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c index 731467d4ed101..b690905ab89ff 100644 --- a/drivers/md/dm-flakey.c +++ b/drivers/md/dm-flakey.c @@ -426,7 +426,7 @@ static struct bio *clone_bio(struct dm_target *ti, struct flakey_c *fc, struct b if (!clone) return NULL; - bio_init(clone, fc->dev->bdev, bio->bi_inline_vecs, nr_iovecs, bio->bi_opf); + bio_init(clone, fc->dev->bdev, clone->bi_inline_vecs, nr_iovecs, bio->bi_opf); clone->bi_iter.bi_sector = flakey_map_sector(ti, bio->bi_iter.bi_sector); clone->bi_private = bio;