diff options
Diffstat (limited to 'pkg/sentry/kernel')
| -rw-r--r-- | pkg/sentry/kernel/sessions.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/pkg/sentry/kernel/sessions.go b/pkg/sentry/kernel/sessions.go index ca9076406..973d708a3 100644 --- a/pkg/sentry/kernel/sessions.go +++ b/pkg/sentry/kernel/sessions.go @@ -369,6 +369,11 @@ func (tg *ThreadGroup) CreateProcessGroup() error { // Get the ID for this thread in the current namespace. id := tg.pidns.tgids[tg] + // Check whether a process still exists or not. + if id == 0 { + return syserror.ESRCH + } + // Per above, check for a Session leader or existing group. for s := tg.pidns.owner.sessions.Front(); s != nil; s = s.Next() { if s.leader.pidns != tg.pidns { |