On 09/19/2016 02:26 PM, Stephen Smalley wrote: > On 09/19/2016 02:02 PM, Petr Lautrbach wrote: >> On Mon, Sep 19, 2016 at 10:39:45AM -0400, Stephen Smalley wrote: >>> On 09/18/2016 02:39 PM, Laurent Bigonville wrote: >>>> Hi, >>>> >>>> It seems that sandbox -X is not working anymore on debian. >>>> >>>> Xephyr (1.18.4) is giving me the following error: >>>> >>>> _XSERVTransmkdir: ERROR: euid != 0,directory /tmp/.X11-unix will not be >>>> created. >>>> >>>> The X socket is not created inside the sandbox and then the application >>>> can obviously not connect to it. >>>> >>>> I'm not sure how this could be fixed, maybe let's seunshare create that >>>> directory? >>> >>> I don't see this error on Fedora, which also has Xephyr 1.18.4, so maybe >>> they have a fix? >>> >>> That is using the Fedora policycoreutils-sandbox package, which yields a >>> functioning sandbox -X, e.g. sandbox -X firefox works correctly. >>> >>> However, if I install sandbox from upstream, e.g. >>> >>> cd selinux >>> sudo make LIBDIR=/usr/lib64 SHLIBDIR=/lib64 install install-pywrap relabel >>> >>> then sandbox -X firefox fails immediately, and I have the following in >>> the audit log: >>> type=SELINUX_ERR msg=audit(1474295659.424:2189): >>> op=security_bounded_transition seresult=denied >>> oldcontext=unconfined_u:unconfined_r:sandbox_x_t:s0:c658,c1002 >>> newcontext=unconfined_u:unconfined_r:sandbox_x_client_t:s0:c658,c1002 >> >> It's most likely not related. Same error can be seen in stock Fedora. >> >>> So I guess there are other patches in the Fedora package that are needed? >> >> It's this patch >> https://github.com/fedora-selinux/selinux/commit/2540625875ebdfe0ef48798437288e8a07aa853d >> >> But the patch bellow works too: >> >> --- a/policycoreutils/sandbox/sandboxX.sh >> +++ b/policycoreutils/sandbox/sandboxX.sh >> @@ -20,7 +20,7 @@ cat > ~/.config/openbox/rc.xml << EOF >> </openbox_config> >> EOF >> >> -(/usr/bin/Xephyr -resizeable -title "$TITLE" -terminate -screen $SCREENSIZE -dpi $DPI -nolisten tcp -displayfd 5 5>&1 2>/dev/null) | while read D; do >> +(/usr/bin/Xephyr -resizeable -title "$TITLE" -screen $SCREENSIZE -dpi $DPI -nolisten tcp -displayfd 5 5>&1 2>/dev/null) | while read D; do >> export DISPLAY=:$D >> cat > ~/seremote << __EOF >> #!/bin/sh >> >> >> >> I'm not sure which one is correct. > > I don't know either, but the one above does work and seems simpler, so > let's go with that one. So, if you could re-spin that with a proper subject and signed-off-by, that would be great. _______________________________________________ Selinux mailing list Selinux@xxxxxxxxxxxxx To unsubscribe, send email to Selinux-leave@xxxxxxxxxxxxx. To get help, send an email containing "help" to Selinux-request@xxxxxxxxxxxxx.
