diff options
| -rw-r--r-- | pkg/sentry/kernel/fasync/fasync.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/pkg/sentry/kernel/fasync/fasync.go b/pkg/sentry/kernel/fasync/fasync.go index 7d01abe90..f77339cae 100644 --- a/pkg/sentry/kernel/fasync/fasync.go +++ b/pkg/sentry/kernel/fasync/fasync.go @@ -60,6 +60,11 @@ func (a *FileAsync) Callback(e *waiter.Entry) { if tg != nil { t = tg.Leader() } + if t == nil { + // No recipient has been registered. + a.mu.Unlock() + return + } c := t.Credentials() // Logic from sigio_perm in fs/fcntl.c. if a.requester.EffectiveKUID == 0 || |