Messages in this thread | | | From | Andy Lutomirski <> | Date | Fri, 8 Nov 2013 08:39:29 -0800 | Subject | Re: [libseccomp-discuss] [PATCH v2] seccomp: not compatible with ARM OABI |
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On Fri, Nov 8, 2013 at 8:29 AM, Paul Moore <pmoore@redhat.com> wrote: > On Thursday, November 07, 2013 11:05:26 AM Andy Lutomirski wrote: >> On Thu, Nov 7, 2013 at 10:56 AM, Eric Paris <eparis@redhat.com> wrote: >> >> > Isn't x32 similarly screwy? Does it work because the syscall numbers >> > are different? >> >> Yes (from reading the code -- I haven't actually tried it). > > I've got a x32 VM that I boot occasionally to test seccomp/libseccomp. For > the purposes of seccomp it looks exactly like x86_64, including sharing the > same AUDIT_ARCH_X86_64 value, the only difference being the syscall number > offset ... Assuming you're using kernel 3.9 or later. Previous kernels had a > bug which stripped the x32 syscall offset so it was impossible to distinguish > from x86_64 and x32 with seccomp. See the following commit for the details:
Ooh -- where did you get this? (I imagine I could debootstrap such a beast and then just chroot / nspawn / schroot in, but if there are readily available images, that would be great. Fedora doesn't seem to have much x32 support.)
--Andy
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