Eric W. Biederman 4accc8c8e2
groups: Consolidate the setgroups permission checks ...
commit 7ff4d90b4c24a03666f296c3d4878cd39001e81e upstream.
Today there are 3 instances of setgroups and due to an oversight their
permission checking has diverged. Add a common function so that
they may all share the same permission checking code.
This corrects the current oversight in the current permission checks
and adds a helper to avoid this in the future.
A user namespace security fix will update this new helper, shortly.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com >
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
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Eric W. Biederman
4accc8c8e2