linux-kernel - Re: [PATCH -next v2] blk-throttle: Set BIO

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Tue, 17 May 2022 19:32:15 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     tj@...nel.org, qiulaibin@...wei.com
Cc:     cgroups@...r.kernel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next v2] blk-throttle: Set BIO_THROTTLED when bio has been throttled

On Tue, 1 Mar 2022 20:39:19 +0800, Laibin Qiu wrote:
> 1.In current process, all bio will set the BIO_THROTTLED flag
> after __blk_throtl_bio().
> 
> 2.If bio needs to be throttled, it will start the timer and
> stop submit bio directly. Bio will submit in
> blk_throtl_dispatch_work_fn() when the timer expires.But in
> the current process, if bio is throttled. The BIO_THROTTLED
> will be set to bio after timer start. If the bio has been
> completed, it may cause use-after-free blow.
> 
> [...]

Applied, thanks!

[1/1] blk-throttle: Set BIO_THROTTLED when bio has been throttled
      commit: 5a011f889b4832aa80c2a872a5aade5c48d2756f

Best regards,
-- 
Jens Axboe