linux-kernel - Re: ls -l /proc/1/exe -> Permission denied

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]

Message-ID: <OF152BAB0C.4FB2E7A9-ONC1257D1B.0031887F-C1257D1B.0031B248@transmode.se>
Date:	Sun, 20 Jul 2014 11:02:48 +0200
From:	Joakim Tjernlund <joakim.tjernlund@...nsmode.se>
To:	Andreas Schwab <schwab@...ux-m68k.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: ls -l  /proc/1/exe -> Permission denied

Andreas Schwab <schwab@...ux-m68k.org> wrote on 2014/07/19 22:21:59:
> 
> Joakim Tjernlund <joakim.tjernlund@...nsmode.se> writes:
> 
> > Trying to real /proc/<pid>/exe I noticed I could not read links not 
> > belonging to my user such as:
> > jocke >  ls -l /proc/1/exe
> >              ls: cannot read symbolic link /proc/1/exe: Permission 
denied
> >
> > Is this expected?
> 
> Yes.  This information is considered private.

I don't understand why though.
Why have exe in the fist place then?

 Jocke
--
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/