From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Thu, 2 Apr 2020 09:51:13 +0000 (+0200)
Subject: utils: use setres{u,g}id() in lxc_switch_uid_gid()
X-Git-Tag: lxc-5.0.0~473^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2ed0ea489a503945e9d0c983c842dadabb4ecf55;p=thirdparty%2Flxc.git

utils: use setres{u,g}id() in lxc_switch_uid_gid()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---

diff --git a/src/lxc/utils.c b/src/lxc/utils.c
index 70414f812..2cf99945f 100644
--- a/src/lxc/utils.c
+++ b/src/lxc/utils.c
@@ -1336,7 +1336,7 @@ bool lxc_switch_uid_gid(uid_t uid, gid_t gid)
 	int ret = 0;
 
 	if (gid != LXC_INVALID_GID) {
-		ret = setgid(gid);
+		ret = setresgid(gid, gid, gid);
 		if (ret < 0) {
 			SYSERROR("Failed to switch to gid %d", gid);
 			return false;
@@ -1345,7 +1345,7 @@ bool lxc_switch_uid_gid(uid_t uid, gid_t gid)
 	}
 
 	if (uid != LXC_INVALID_UID) {
-		ret = setuid(uid);
+		ret = setresuid(uid, uid, uid);
 		if (ret < 0) {
 			SYSERROR("Failed to switch to uid %d", uid);
 			return false;