On Friday, July 27, 2012 03:27:01 PM Serge Hallyn wrote: > Quoting Paul Moore ([email protected]): > > On Friday, July 27, 2012 01:47:44 PM Serge Hallyn wrote: > > > Quoting Serge Hallyn ([email protected]): > > > ... > > > > > > > > There have been discussions about disabling certain syscalls, e.g. > > > > > execve(), in certain applications, but by default the kernel doesn't > > > > > disallow any syscalls neither does libseccomp. The only things that > > > > > libseccomp does by default is set the no_new_privs prctl() flag and > > > > > verify that you are not trying to run a non-native binary. Both are > > > > > tunable using the > > > > > seccomp_attr_{get,set}() functions, but it doesn't sound like that > > > > > it > > > > > your > > > > > > > > Ah, that's good to know, I'll definately need to use that (lxc seccomp > > > > patch is what I'm really working on). > > > > > > That was the problem. I haven't looked back at the kernel code, but > > > when > > > I do seccomp_attr_set(SCMP_FLTATR_CTL_NNP, 0); then it works. I > > > remember > > > a patch going in about apparmor denying somethingorother with NNP, I > > > must > > > have run into that. > > > > > > Thanks! > > > > Great, glad to hear you found the problem. > > > > Also, just a heads-up for the lxc patch in case you missed it earlier this > > week, we're changing the API in the next release to include a filter > > context/handle. > > Yup, I'm only doing a proof of concept this week. In 2-3 weeks I'll try > to get something packageable and upstreamable, maybe the new API will > be packaged by then.
Okay great. Any feedback you can share so far? Hopefully we'll get a new release out next week, and I expect the distributions will soon follow with the packages. I know I'll get the Fedora package out soon afterwards and I expect Kees will handle the Debian/Ubuntu packages quickly as well. -- paul moore security and virtualization @ redhat ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ libseccomp-discuss mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libseccomp-discuss
