From mboxrd@z Thu Jan 1 00:00:00 1970 From: Josh Triplett Subject: [PATCH manpages] getgroups.2: Document unprivileged setgroups calls Date: Sat, 15 Nov 2014 01:01:52 -0800 Message-ID: <20141115090151.GA15470@thin> References: <3ccec8a13019b5e8ce7b1d7889677b778b070dc8.1416041823.git.josh@joshtriplett.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <3ccec8a13019b5e8ce7b1d7889677b778b070dc8.1416041823.git.josh-iaAMLnmF4UmaiuxdJuQwMA@public.gmane.org> Sender: linux-man-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Andrew Morton , "Eric W. Biederman" , Kees Cook , mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-api@vger.kernel.org Signed-off-by: Josh Triplett --- This should probably also include appropriate documentation for what kernel introduces this behavior. man2/getgroups.2 | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/man2/getgroups.2 b/man2/getgroups.2 index 373c204..edca37c 100644 --- a/man2/getgroups.2 +++ b/man2/getgroups.2 @@ -81,9 +81,10 @@ to be used in a further call to .PP .BR setgroups () sets the supplementary group IDs for the calling process. -Appropriate privileges (Linux: the +Any process may drop groups from its list, but adding groups requires +appropriate privileges (Linux: the .B CAP_SETGID -capability) are required. +capability). The .I size argument specifies the number of supplementary group IDs -- 2.1.3 -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html