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 for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Thu, 10 Jan 2019 15:37:47 -0800
From:   Andrew Morton <>
To:     Andrei Vagin <>
Cc:     Oleg Nesterov <>,,
        "Eric W. Biederman" <>
Subject: Re: [PATCH v2] kernel: release ptraced tasks before

On Thu, 10 Jan 2019 09:52:00 -0800 Andrei Vagin <> wrote:

> Currently, exit_ptrace() adds all ptraced tasks in a dead list, than
> zap_pid_ns_processes() waits all tasks in a current pidns, and only
> then tasks from the dead list are released.
> zap_pid_ns_processes() can stuck on waiting tasks from the dead list. In
> this case, we will have one unkillable process with one or more dead
> children.
> Thanks to Oleg for the advice to release tasks in find_child_reaper().
> Fixes: 7c8bd2322c7f ("exit: ptrace: shift "reap dead" code from exit_ptrace() to forget_original_parent()")
> Cc: "Eric W. Biederman" <>
> Cc: Andrew Morton <>
> Signed-off-by: Oleg Nesterov <>
> Signed-off-by: Andrei Vagin <>

Does this warrant a -stable backport?  7c8bd2322c7f was 4+ years ago...

Powered by blists - more mailing lists