linux-kernel - Re: [PATCH] ipc/sem.c: fix update sem_otime when calling sem

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

Date:	Sun, 22 Sep 2013 12:00:21 +0200
From:	Mike Galbraith <bitbucket@...ine.de>
To:	Jia He <jiakernel@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	Davidlohr Bueso <davidlohr.bueso@...com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...hat.com>,
	Manfred Spraul <manfred@...orfullife.com>,
	Al Viro <viro@...iv.linux.org.uk>
Subject: Re: [PATCH] ipc/sem.c: fix update sem_otime when calling sem_op in
 semaphore initialization

On Sun, 2013-09-22 at 17:34 +0800, Jia He wrote: 
> Thanks for the comments, but pls add my email as "from jiakernel@...il.com"
> if you have a better implementation.U know, it is my first kernel patch, maybe
> will give me a brilliant memory in the future :)

You can have the blame if you like :)

> Anyway, your implementation looks not correct to me. Because from "man semop"
> sem_otime will record the last sem operation time of semop. If you change the
> otime in semget(), it changes the meanings in stardard, doesn't it?

A Linux kernel doing a semop in 1970 would be a kinda neat trick :)

-Mike

--
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/