diff options
| -rw-r--r-- | kernel/seccomp.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/seccomp.c b/kernel/seccomp.c index e30b60b57614..60990264fef0 100644 --- a/kernel/seccomp.c +++ b/kernel/seccomp.c @@ -1466,7 +1466,7 @@ static int recv_wake_function(wait_queue_entry_t *wait, unsigned int mode, int s void *key) { /* Avoid a wakeup if event not interesting for us. */ - if (key && !(key_to_poll(key) & (EPOLLIN | EPOLLERR))) + if (key && !(key_to_poll(key) & (EPOLLIN | EPOLLERR | EPOLLHUP))) return 0; return autoremove_wake_function(wait, mode, sync, key); } @@ -1476,6 +1476,9 @@ static int recv_wait_event(struct seccomp_filter *filter) DEFINE_WAIT_FUNC(wait, recv_wake_function); int ret; + if (refcount_read(&filter->users) == 0) + return 0; + if (atomic_dec_if_positive(&filter->notif->requests) >= 0) return 0; @@ -1484,6 +1487,8 @@ static int recv_wait_event(struct seccomp_filter *filter) if (atomic_dec_if_positive(&filter->notif->requests) >= 0) break; + if (refcount_read(&filter->users) == 0) + break; if (ret) return ret; |