linux-kernel - Re: [RFC, PATCH] fix 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 for Android: free password hash cracker in your pocket

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

Message-ID: <47F530AD.3090706@colorfullife.com>
Date:	Thu, 03 Apr 2008 21:31:57 +0200
From:	Manfred Spraul <manfred@...orfullife.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	"Serge E. Hallyn" <serue@...ibm.com>, xemul@...nvz.org,
	linux-kernel@...r.kernel.org, sukadev@...ibm.com,
	ebiederm@...ssion.com, Nadia Derbey <Nadia.Derbey@...l.net>,
	Pierre Peiffer <peifferp@...il.com>
Subject: Re: [RFC, PATCH] fix SEM_UNDO with namespaces

Andrew Morton wrote:
>>
>> Absolutely.
>>
>>     
>
> Guys, what's the status here?
>
> afaict Manfred has identified an available-to-unprivileged-apps kernel
> memory corrupter?  If so, we should fix it asap for 2.6.25.  And for
> 2.6.24.x if it's also present there.
>
>   
No, it's a priveledged-only memory corruption:
> int unshare_nsproxy_namespaces(unsigned long unshare_flags,
>                 struct nsproxy **new_nsp, struct fs_struct *new_fs)
> {
>         int err = 0;
> [snip]
>         if (!capable(CAP_SYS_ADMIN))
>                 return -EPERM;

> Manfred's patch doesn't come close to applying against the 2.6.26 IPC
> things which we have queued but that's OK - bugfixes come first.
>   
Where can I find the queued changes? Are they in -mm?

--
    Manfred
--
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/