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-rw-r--r--pkg/sentry/kernel/fasync/fasync.go10
1 files changed, 10 insertions, 0 deletions
diff --git a/pkg/sentry/kernel/fasync/fasync.go b/pkg/sentry/kernel/fasync/fasync.go
index 323f1dfa5..153d2cd9b 100644
--- a/pkg/sentry/kernel/fasync/fasync.go
+++ b/pkg/sentry/kernel/fasync/fasync.go
@@ -176,3 +176,13 @@ func (a *FileAsync) SetOwnerProcessGroup(requester *kernel.Task, recipient *kern
a.recipientTG = nil
a.recipientPG = recipient
}
+
+// ClearOwner unsets the current signal recipient.
+func (a *FileAsync) ClearOwner() {
+ a.mu.Lock()
+ defer a.mu.Unlock()
+ a.requester = nil
+ a.recipientT = nil
+ a.recipientTG = nil
+ a.recipientPG = nil
+}