Remove signal_event from evbase before calling sudo_ev_loopexit()

when the command has exited or been killed.  It is possible that
we could receive another signal on the pipe if they are delivered
out of order.

diff --git a/src/exec.c b/src/exec.c
index 275ee75852e6d958b25d0e23b98a6bd76ab634ad..8f8e389aa6ccb403f75a549f34403c00e996fe52 100644 (file)
--- a/src/exec.c
+++ b/src/exec.c
@@ -603,6 +603,7 @@ dispatch_signal(struct sudo_event_base *evbase, pid_t child,
                /* Child has exited or been killed, we are done. */
                cstat->type = CMD_WSTATUS;
                cstat->val = status;
+               sudo_ev_del(evbase, signal_event);
                sudo_ev_loopexit(evbase);
                goto done;
            }