linux-kernel - Re: [Bugme-new] [Bug 10284] New: executables with read bit 'off' cannot open /dev/stdin

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: <20080319210115.02915291@laptopd505.fenrus.org>
Date:	Wed, 19 Mar 2008 21:01:15 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Matthew Wilcox <matthew@....cx>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	bugme-daemon@...zilla.kernel.org, joe@...itfly.org
Subject: Re: [Bugme-new] [Bug 10284] New: executables with read bit 'off'
 cannot open /dev/stdin

On Wed, 19 Mar 2008 19:56:50 -0600
Matthew Wilcox <matthew@....cx> wrote:


> I've tried this program on 2.6.25-rc3-00093-g59e1338-dirty and it does
> not fail.
> 
> > > open("/dev/stdin", O_RDONLY)            = -1 EACCES (Permission
> > > denied)
> 
> Specifically, my tests show:
> 
> open-stdin-readable:open("/dev/stdin", O_RDONLY)            = 3
> open-stdin-unreadable:open("/dev/stdin", O_RDONLY)            = 3
> 
> Joe, can you try a more recent kernel?

another interesting question is if you're using some special LSM/security stuff..


-- 
If you want to reach me at my work email, use arjan@...ux.intel.com
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org
--
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/