Just noticed the PID tree trace didn't match on the Group: from
proc/$PID/status. Here's the corrected output.
$ pid=$BASHPID; while [[ $pid -ne 0 ]]; do ids=$(grep
'^\(.*id:\|Group\)' /proc/$pid/status); echo -e "cmdline: $(cat
/proc/$pid/cmdline) \n $ids" 2>/dev/null; pid=$(echo $ids | awk '{print
$8}'); done
cmdline: -bash
Tgid: 3610
Ngid: 0
Pid: 3610
PPid: 3548
TracerPid: 0
Uid: 1000 1000 1000 1000
Gid: 1000 1000 1000 1000
Groups:
NStgid: 3610
NSpid: 3610
NSpgid: 3610
NSsid: 3610
cmdline: tmux
Tgid: 3548
Ngid: 0
Pid: 3548
PPid: 1
TracerPid: 0
Uid: 1000 1000 1000 1000
Gid: 1000 1000 1000 1000
Groups:
NStgid: 3548
NSpid: 3548
NSpgid: 3548
NSsid: 3548
cmdline: /sbin/init
Tgid: 1
Ngid: 0
Pid: 1
PPid: 0
TracerPid: 0
Uid: 0 0 0 0
Gid: 0 0 0 0
Groups:
NStgid: 1
NSpid: 1
NSpgid: 1
NSsid: 1
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https://bugs.launchpad.net/bugs/1784964
Title:
Regression due to CVE-2018-1116 (processes not inheriting user's
groups )
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