when i run CVE-2019-13272 POC,a message like this appears:
[.] Checking environment ...
[~] Done, looks good
[.] Searching policies for useful helpers ...
[.] Ignoring helper (does not exist): /opt/pbis/bin/config
[.] Ignoring helper (does not exist): cp
[.] Ignoring helper (blacklisted): /usr/lib/xserver-xorg-video-intel/xf86-video-intel-backlight-helper
[.] Trying helper: /bin/systemctl
[.] Spawning suid process (/usr/bin/pkexec) ...
[.] Tracing midpid ...
[~] Attached to midpid
[-] Error: setresgid(0, 0, 0)
linux kernel:4.19.0-amd64-desktop.
why "Error: setresgid(0, 0, 0)"?
