linux-kernel - Re: [PATCH] softlockup: fix potential race in hung

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]

Message-ID: <20090118182236.GB24570@elte.hu>
Date:	Sun, 18 Jan 2009 19:22:36 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Mandeep Singh Baines <msb@...gle.com>
Cc:	linux-kernel@...r.kernel.org, hannes@...xchg.org,
	rientjes@...gle.com, mbligh@...gle.com, thockin@...gle.com
Subject: Re: [PATCH] softlockup: fix potential race in hung_task when
	resetting timeout


* Mandeep Singh Baines <msb@...gle.com> wrote:

> Patch against tip/core/softlockup.
> 
> ---
> 
> A potential race exists if sysctl_hung_task_timeout_secs is reset to 0
> while inside check_hung_uniterruptible_tasks(). If check_task() is
> entered, a comparison with 0 will result in a false hung_task being
> detected.
> 
> If sysctl_hung_task_panic is set, the system will panic.
> 
> Signed-off-by: Mandeep Singh Baines <msb@...gle.com>
> ---
>  kernel/hung_task.c |   24 ++++++++++++++++--------
>  1 files changed, 16 insertions(+), 8 deletions(-)

Applied to tip/core/softlockup, thanks Mandeep!

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/