linux-kernel - Re: [PATCH v3] io_uring/io-wq: Use set_bit() and test

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, 07 May 2024 13:17:34 -0600
From: Jens Axboe <axboe@...nel.dk>
To: Pavel Begunkov <asml.silence@...il.com>, 
 Breno Leitao <leitao@...ian.org>
Cc: christophe.jaillet@...adoo.fr, paulmck@...nel.org, 
 io-uring@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] io_uring/io-wq: Use set_bit() and test_bit() at
 worker->flags


On Tue, 07 May 2024 10:00:01 -0700, Breno Leitao wrote:
> Utilize set_bit() and test_bit() on worker->flags within io_uring/io-wq
> to address potential data races.
> 
> The structure io_worker->flags may be accessed through various data
> paths, leading to concurrency issues. When KCSAN is enabled, it reveals
> data races occurring in io_worker_handle_work and
> io_wq_activate_free_worker functions.
> 
> [...]

Applied, thanks!

[1/1] io_uring/io-wq: Use set_bit() and test_bit() at worker->flags
      commit: 8a565304927fbd28c9f028c492b5c1714002cbab

Best regards,
-- 
Jens Axboe