linux-kernel - [PATCH v2 0/2] fix request uaf in nbd_read

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Message-ID: <20210809030927.1946162-1-yukuai3@huawei.com>
Date:   Mon, 9 Aug 2021 11:09:25 +0800
From:   Yu Kuai <yukuai3@...wei.com>
To:     <axboe@...nel.dk>, <josef@...icpanda.com>, <bvanassche@....org>,
        <ming.lei@...hat.com>
CC:     <linux-block@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <nbd@...er.debian.org>, <yukuai3@...wei.com>, <yi.zhang@...wei.com>
Subject: [PATCH v2 0/2] fix request uaf in nbd_read_stat()

This patchset fix request uaf in nbd, other drivers might have the
same problem. Will fix them later if this patchset is accepted.

Changes in v2:
 - as Bart suggested, add a new helper function for drivers to get
 request by tag.

Yu Kuai (2):
  blk-mq: add a new interface to get request by tag
  nbd: convert to use blk_mq_get_rq_by_tag()

 block/blk-mq-tag.c     | 33 +++++++++++++++++++++++++++++++++
 block/blk-mq.c         |  1 +
 block/blk-mq.h         |  1 -
 drivers/block/nbd.c    | 11 ++++++-----
 include/linux/blk-mq.h |  3 +++
 5 files changed, 43 insertions(+), 6 deletions(-)

-- 
2.31.1