From: Jens Axboe <axboe@fb.com>
To: Mike Krinkin <krinkin.m.u@gmail.com>
Cc: <avanzini@google.com>, <paolo.valente@unimore.it>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] null_blk: fix use-after-free error
Date: Tue, 22 Dec 2015 10:43:08 -0700 [thread overview]
Message-ID: <56798BAC.5010208@fb.com> (raw)
In-Reply-To: <1450173400-18287-1-git-send-email-krinkin.m.u@gmail.com>
On 12/15/2015 02:56 AM, Mike Krinkin wrote:
> blk_end_request_all may free request, so we need to save
> request_queue pointer before blk_end_request_all call.
>
> The problem was introduced in commit cf8ecc5a8455266f8d51
> ("null_blk: guarantee device restart in all irq modes")
> and causes general protection fault with slab poisoning
> enabled.
>
> Fixes: cf8ecc5a8455266f8d51 ("null_blk: guarantee device
> restart in all irq modes")
Added for 4.4, thanks.
--
Jens Axboe
prev parent reply other threads:[~2015-12-22 17:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-15 9:56 [PATCH] null_blk: fix use-after-free error Mike Krinkin
2015-12-22 2:11 ` Ming Lei
2015-12-22 17:43 ` Jens Axboe [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=56798BAC.5010208@fb.com \
--to=axboe@fb.com \
--cc=avanzini@google.com \
--cc=krinkin.m.u@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=paolo.valente@unimore.it \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.