git.karo-electronics.de Git - karo-tx-linux.git/commit

author	FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
	Tue, 28 Apr 2009 18:24:29 +0000 (20:24 +0200)
committer	Greg Kroah-Hartman <gregkh@suse.de>
	Fri, 8 May 2009 22:45:04 +0000 (15:45 -0700)
commit	8e04ad485fa8a1235490128819c5b84f7eb34afe
tree	3197e2b6dca7bbb3aafb70f15d40e81e748fbdc7	tree \| snapshot
parent	191a87b5f9726f1f78eab51419c9c9548ebc6670	commit \| diff

bio: fix memcpy corruption in bio_copy_user_iov()

commit 69838727bcd819a8fd73a88447801221788b0c6d upstream.

st driver uses blk_rq_map_user() in order to just build a request out
of page frames. In this case, map_data->offset is a non zero value and
iov[0].iov_base is NULL. We need to increase nr_pages for that.

Cc: stable@kernel.org
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>