diff -uNr strace-4.24/strace.c strace-4.24.mod/strace.c
--- strace-4.24/src/strace.c	2018-07-11 03:00:57.000000000 +0300
+++ strace-4.24.mod/src/strace.c	2018-10-03 01:15:15.105370170 +0300
@@ -442,11 +442,7 @@
 static void
 swap_uid(void)
 {
-	int euid = geteuid(), uid = getuid();
-
-	if (euid != uid && setreuid(euid, uid) < 0) {
-		perror_msg_and_die("setreuid");
-	}
+    return;
 }
 
 static FILE *
@@ -1182,25 +1178,6 @@
 		}
 	}
 
-	if (username != NULL) {
-		/*
-		 * It is important to set groups before we
-		 * lose privileges on setuid.
-		 */
-		if (initgroups(username, run_gid) < 0) {
-			perror_msg_and_die("initgroups");
-		}
-		if (setregid(run_gid, params->run_egid) < 0) {
-			perror_msg_and_die("setregid");
-		}
-		if (setreuid(run_uid, params->run_euid) < 0) {
-			perror_msg_and_die("setreuid");
-		}
-	} else if (geteuid() != 0)
-		if (setreuid(run_uid, run_uid) < 0) {
-			perror_msg_and_die("setreuid");
-		}
-
 	if (!daemonized_tracer) {
 		/*
 		 * Induce a ptrace stop. Tracer (our parent)
