diff options
| -rw-r--r-- | pkg/sentry/kernel/task_start.go | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/pkg/sentry/kernel/task_start.go b/pkg/sentry/kernel/task_start.go index a88bf3951..d60cd62c7 100644 --- a/pkg/sentry/kernel/task_start.go +++ b/pkg/sentry/kernel/task_start.go @@ -250,8 +250,20 @@ func (ns *PIDNamespace) allocateTID() (ThreadID, error) { } // Is it available? - _, ok := ns.tasks[tid] - if !ok { + tidInUse := func() bool { + if _, ok := ns.tasks[tid]; ok { + return true + } + if _, ok := ns.processGroups[ProcessGroupID(tid)]; ok { + return true + } + if _, ok := ns.sessions[SessionID(tid)]; ok { + return true + } + return false + }() + + if !tidInUse { ns.last = tid return tid, nil } |