From 3c957acf86b9ec482a527528987b2462a32e0d07 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Wed, 21 Nov 2012 02:58:55 +0100 Subject: nspawn: reset supplementary and main group id before entering nspawn --- src/nspawn/nspawn.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'src/nspawn') diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c index 244ebb8342..59171abff3 100644 --- a/src/nspawn/nspawn.c +++ b/src/nspawn/nspawn.c @@ -1327,6 +1327,23 @@ int main(int argc, char *argv[]) { log_error("setreuid() failed: %m"); goto child_fail; } + } else { + /* Reset everything fully to 0, just in case */ + + if (setgroups(0, NULL) < 0) { + log_error("setgroups() failed: %m"); + goto child_fail; + } + + if (setresgid(0, 0, 0) < 0) { + log_error("setregid() failed: %m"); + goto child_fail; + } + + if (setresuid(0, 0, 0) < 0) { + log_error("setreuid() failed: %m"); + goto child_fail; + } } if ((asprintf((char**)(envp + 3), "HOME=%s", home ? home: "/root") < 0) || -- cgit v1.2.3-54-g00ecf