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-next>] [day] [month] [year] [list]
Message-Id: <20200923114419.71218-1-songmuchun@bytedance.com>
Date:   Wed, 23 Sep 2020 19:44:14 +0800
From:   Muchun Song <songmuchun@...edance.com>
To:     axboe@...nel.dk, viro@...iv.linux.org.uk
Cc:     linux-fsdevel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, zhuyinyin@...edance.com,
        Muchun Song <songmuchun@...edance.com>
Subject: [PATCH v2 0/5] io_uring: Fix async workqueue is not canceled on some corner case

We should make sure that async workqueue is canceled on exit, but on
some corner case, we found that the async workqueue is not canceled
on exit in the linux-5.4. So we started an in-depth investigation.
Fortunately, we finally found the problem. The commit:

  1c4404efcf2c ("io_uring: make sure async workqueue is canceled on exit")

did not completely solve this problem. This patch series to solve this
problem completely. And there's no upstream variant of this commit, so
this patch series is just fix the linux-5.4.y stable branch.

changelog in v2:
  1. Fix missing save the current thread files
  2. Fix double list add in io_queue_async_work()

Muchun Song (4):
  io_uring: Fix missing smp_mb() in io_cancel_async_work()
  io_uring: Fix remove irrelevant req from the task_list
  io_uring: Fix missing save the current thread files
  io_uring: Fix double list add in io_queue_async_work()

Yinyin Zhu (1):
  io_uring: Fix resource leaking when kill the process

 fs/io_uring.c | 59 +++++++++++++++++++++++++++++++++++++++--------------------
 1 file changed, 39 insertions(+), 20 deletions(-)

-- 
2.11.0

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ