Serge E. Hallyn wrote: > The devcgroup_inode_permission() hook in the devices whitelist > cgroup has always bypassed access checks on fifos. But the > mknod hook did not. The devices whitelist is only about block > and char devices, and fifos can't even be added to the whitelist, > so fifos can't be created at all except by tasks which have 'a' > in their whitelist (meaning they have access to all devices). > > Fix the behavior by bypassing access checks to mkfifo. > > Signed-off-by: Serge E. Hallyn <[EMAIL PROTECTED]> > --- > security/device_cgroup.c | 3 +++ > 1 files changed, 3 insertions(+), 0 deletions(-) > > diff --git a/security/device_cgroup.c b/security/device_cgroup.c > index 5ba7870..df9d491 100644 > --- a/security/device_cgroup.c > +++ b/security/device_cgroup.c > @@ -513,6 +513,9 @@ int devcgroup_inode_mknod(int mode, dev_t dev) > struct dev_cgroup *dev_cgroup; > struct dev_whitelist_item *wh; > > + if (!S_ISBLK(mode) && !S_ISCHR(mode)) > + return 0; > + > rcu_read_lock(); > > dev_cgroup = task_devcgroup(current);
Cool thanks. I am able to create the initctl fifo now. -- Daniel _______________________________________________ Containers mailing list [EMAIL PROTECTED] https://lists.linux-foundation.org/mailman/listinfo/containers _______________________________________________ Devel mailing list [email protected] https://openvz.org/mailman/listinfo/devel
