> On Jan. 14, 2019, 12:31 a.m., Qian Zhang wrote: > > src/linux/seccomp/seccomp.cpp > > Lines 137-139 (patched) > > <https://reviews.apache.org/r/68018/diff/14/?file=2117423#file2117423line137> > > > > Will this affect the task run by Mesos? E.g., a task may want to run a > > program which has `set-user-ID` bit. > > Andrei Budnik wrote: > Yes, `no_new_privs` flag affects the task that wants to run a program > which has `set-user-ID` bit. > E.g., launching a `ping -c 3 8.8.8.8` fails with seccomp. You'll see a > message in executor logs: > ``` > I0114 07:19:21.887670 13264 executor.cpp:706] Forked command at 13276 > ping: socket: Operation not permitted > I0114 07:19:22.055352 13263 executor.cpp:1007] Command exited with status > 2 (pid: 13276) > ``` > > Also, see my previous comment > https://reviews.apache.org/r/68018/#comment297000 > > Qian Zhang wrote: > In your previous comment, you mentioned that Docker daemon launches its > containers with `SCMP_FLTATR_CTL_NNP` flag set by default, does that mean any > containers launched by Docker daemon cannot run program which has set-user-ID > bit? > > This seems unfortunate since it might break some use cases or > applications that we already supported. And can you please elaborate a bit > about `"Disabling SCMP_FLTATR_CTL_NNP flag for a root means that Seccomp > filter can be reverted anytime"`? How will the Seccomp filter be reverted? Do > you mean the task launched by Mesos can call libseccomp API to revert the > filter itself? > > If we have to live with this limitation (i.e., cannot run program which > has set-user-ID bit), then we need to highlight it in the document.
Seems like we asked the same question. Andrei, let align on this thread? :/thanks:) - Gilbert ----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/68018/#review211946 ----------------------------------------------------------- On Nov. 8, 2018, 7:24 a.m., Andrei Budnik wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/68018/ > ----------------------------------------------------------- > > (Updated Nov. 8, 2018, 7:24 a.m.) > > > Review request for mesos, Gilbert Song, Jie Yu, James Peach, and Qian Zhang. > > > Bugs: MESOS-9034 > https://issues.apache.org/jira/browse/MESOS-9034 > > > Repository: mesos > > > Description > ------- > > `SeccompFilter` class is a wrapper for `libseccomp` API. Its main > purpose is to provide a translation of the `ContainerSeccompProfile` > message into calls of `libseccomp` API. > > > Diffs > ----- > > src/CMakeLists.txt a574d449dc26b820cbef7ff0b5e94b42b6fe86cf > src/Makefile.am cd785255fcdf1302a8f9fa358039e5d1f200e132 > src/linux/seccomp/seccomp.hpp PRE-CREATION > src/linux/seccomp/seccomp.cpp PRE-CREATION > > > Diff: https://reviews.apache.org/r/68018/diff/15/ > > > Testing > ------- > > > Thanks, > > Andrei Budnik > >
