3 Feb 18:40
Re: coLinux-users Digest, Vol 69, Issue 2
Hi Alexander Kriegisch (kriegaex), I don't have any problem with it on Ubuntu 12.04 (speedlinux) Did test with this example: http://monkeypatch.me/blog/move-a-running-process-to-a-new-screen-shell.html Best regards, Johann Pascher 2012/2/3 <colinux-users-request@...>: > Send coLinux-users mailing list submissions to > colinux-users@... > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.sourceforge.net/lists/listinfo/colinux-users > or, via email, send a message with subject or body 'help' to > colinux-users-request@... > > You can reach the person managing the list at > colinux-users-owner@... > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of coLinux-users digest..." > > > Today's Topics: > > 1. Re: Problem with ptrace protection in Ubuntu (yin sun) > 2. Re: Problem with ptrace protection in Ubuntu (yin sun) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 2 Feb 2012 18:28:04 -0800 > From: yin sun <sunyin51@...> > Subject: Re: [coLinux-users] Problem with ptrace protection in Ubuntu > To: colinux-users@... > Message-ID: > <CAKPZSeDNDgjSUHZEcJDpYQ-WwYBcZV8YZZ=VzkQMFBYcrenZvA <at> mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > I guess you are right, there is no yama LSM in 2.6.33.7 > > /Yin > > On Tue, Jan 31, 2012 at 8:48 PM, Alexander Kriegisch > <kriegaex@...> wrote: >> Hi. >> >> I am running andLinux/coLinux: >> >> $ uname -a >> Linux andLinux 2.6.33.7-co-0.7.10-r1588 #1 PREEMPT Mon Aug 8 04:13:31 UTC 2011 i686 athlon i386 GNU/Linux >> >> But... >> >> $ cat /etc/motd | head -n 1 >> Welcome to Ubuntu 11.10 (GNU/Linux 2.6.33.7-co-0.7.10-r1588 i686) >> >> Now the problem is so-called "ptrace protection", explained there: >> https://wiki.edubuntu.org/SecurityTeam/Roadmap/KernelHardening#ptrace_Protection >> >> I tried to use tools like reptyr and injcode: >> https://github.com/nelhage/reptyr#readme >> https://github.com/ThomasHabets/injcode#readme >> >> Both of them do not work as expected. My suspicion is that this is due to my combination of coLinux kernel (without yama) and new Ubuntu (relying on yama). I tried to run the tools as root (sudo -i) because I expected ptrace protection to be inactive according to the description at Ubuntu, but to no avail. >> >> My questions are: >> ?1) Can you confirm that my suscpcion is correct? >> ? ?2a) If not, what else might be the reason for my problems? >> ? ?2b) If so, is there anything I can do about it like downloading a coLinux kernel with built-in yama support from somewhere or asking you to build in yama protection in the future? >> >> Disclaimer: Maybe I am not asking the right questions. Please note that I am a user, not a kernel hacker. >> >> Any help is appreciated. Thanks in advance. >> -- >> Alexander Kriegisch (kriegaex) >> http://freetz.org >> >> >> >> >> ------------------------------------------------------------------------------ >> Keep Your Developer Skills Current with LearnDevNow! >> The most comprehensive online learning library for Microsoft developers >> is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, >> Metro Style Apps, more. Free future releases when you subscribe now! >> http://p.sf.net/sfu/learndevnow-d2d >> _______________________________________________ >> coLinux-users mailing list >> coLinux-users@... >> https://lists.sourceforge.net/lists/listinfo/colinux-users > > > > ------------------------------ > > Message: 2 > Date: Thu, 2 Feb 2012 21:47:25 -0800 > From: yin sun <sunyin51@...> > Subject: Re: [coLinux-users] Problem with ptrace protection in Ubuntu > To: colinux-users@... > Message-ID: > <CAKPZSeB1m0XsZnoOyEcH56gmKQgWWQc7M4rseLGCAdRS1p4oYw <at> mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > OK, I tried on my debian 6.0.3 (latest colinux kernel), rettyer works. > And I am sure the colinux doesn't have yama. whether have yama or not > may not be your problem. > Since it only provide protection for non root user. > not sure what else could be wrong, sorry can't help you more. > > /Yin > > > > On Thu, Feb 2, 2012 at 6:28 PM, yin sun <sunyin51@...> wrote: >> I guess you are right, there is no yama LSM in 2.6.33.7 >> >> /Yin >> >> On Tue, Jan 31, 2012 at 8:48 PM, Alexander Kriegisch >> <kriegaex@...> wrote: >>> Hi. >>> >>> I am running andLinux/coLinux: >>> >>> $ uname -a >>> Linux andLinux 2.6.33.7-co-0.7.10-r1588 #1 PREEMPT Mon Aug 8 04:13:31 UTC 2011 i686 athlon i386 GNU/Linux >>> >>> But... >>> >>> $ cat /etc/motd | head -n 1 >>> Welcome to Ubuntu 11.10 (GNU/Linux 2.6.33.7-co-0.7.10-r1588 i686) >>> >>> Now the problem is so-called "ptrace protection", explained there: >>> https://wiki.edubuntu.org/SecurityTeam/Roadmap/KernelHardening#ptrace_Protection >>> >>> I tried to use tools like reptyr and injcode: >>> https://github.com/nelhage/reptyr#readme >>> https://github.com/ThomasHabets/injcode#readme >>> >>> Both of them do not work as expected. My suspicion is that this is due to my combination of coLinux kernel (without yama) and new Ubuntu (relying on yama). I tried to run the tools as root (sudo -i) because I expected ptrace protection to be inactive according to the description at Ubuntu, but to no avail. >>> >>> My questions are: >>> ?1) Can you confirm that my suscpcion is correct? >>> ? ?2a) If not, what else might be the reason for my problems? >>> ? ?2b) If so, is there anything I can do about it like downloading a coLinux kernel with built-in yama support from somewhere or asking you to build in yama protection in the future? >>> >>> Disclaimer: Maybe I am not asking the right questions. Please note that I am a user, not a kernel hacker. >>> >>> Any help is appreciated. Thanks in advance. >>> -- >>> Alexander Kriegisch (kriegaex) >>> http://freetz.org >>> >>> >>> >>> >>> ------------------------------------------------------------------------------ >>> Keep Your Developer Skills Current with LearnDevNow! >>> The most comprehensive online learning library for Microsoft developers >>> is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, >>> Metro Style Apps, more. Free future releases when you subscribe now! >>> http://p.sf.net/sfu/learndevnow-d2d >>> _______________________________________________ >>> coLinux-users mailing list >>> coLinux-users@... >>> https://lists.sourceforge.net/lists/listinfo/colinux-users > > > > ------------------------------ > > ------------------------------------------------------------------------------ > Try before you buy = See our experts in action! > The most comprehensive online learning library for Microsoft developers > is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, > Metro Style Apps, more. Free future releases when you subscribe now! > http://p.sf.net/sfu/learndevnow-dev2 > > ------------------------------ > > _______________________________________________ > coLinux-users mailing list > coLinux-users@... > https://lists.sourceforge.net/lists/listinfo/colinux-users > > > End of coLinux-users Digest, Vol 69, Issue 2 > ******************************************** ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2
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