Bail out early from internal_select() when socket file descriptor
closed. Prevents core dump.
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index cba261e..d5c925b 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -505,9 +505,14 @@
fd_set fds;
struct timeval tv;
+ /* Nothing to do unless we're in timeout mode (not non-blocking) */
if (s->sock_timeout <= 0.0)
return;
+ /* Guard against closed socket */
+ if (s->sock_fd < 0)
+ return;
+
/* Construct the arguments to select */
tv.tv_sec = (int)s->sock_timeout;
tv.tv_usec = (int)((s->sock_timeout - tv.tv_sec) * 1e6);