Comment # 7 on bug 1095670 from Dr. Werner Fink

(In reply to Mark Hounschell from comment #6)
> https://rudin.suse.de:8894/package/binary/download/Base:System/bash/
> openSUSE_Leap_15.0/x86_64/bash-4.4-lp150.361.1.x86_64.rpm
> 
> This did not work for me. Same results. Did it work for you with the
> provided test case?

Hmmm ... I see a SIGSEGV due not initialized current_user.user_name ... but
with fixing that I see

abuild@noether:/tmp> cat checkgrp.c
#define _GNU_SOURCE
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
    char *path = getenv("PATH");
    char  pathenv[strlen(path) + sizeof("PATH=")];
    sprintf(pathenv, "PATH=%s", path);
    char *envp[] = {pathenv, NULL};
    char *tests[] = {"/tmp/id.sh", NULL};
    execvpe(tests[0], tests, envp);
}
abuild@noether:/tmp> cat id.sh
#!/bin/sh
whoami
id
abuild@noether:/tmp> ll
total 32
-rw------- 1 root   root     101 Jun  4 10:43 .xauthEJxh4h0IyV
-rwsr-sr-x 1 root   root   16936 Jun  4 10:48 checkgrp
-rw-r--r-- 1 abuild abuild   352 Jun  4 10:48 checkgrp.c
-rwxr-xr-x 1 abuild abuild    20 Jun  4 10:48 id.sh
abuild@noether:/tmp> ./checkgrp 
abuild
uid=399(abuild) gid=399(abuild)
groups=399(abuild),488(video),489(tape),495(cdrom),496(audio)