BUG/MEDIUM: stream-int: Check if the conn_stream exist in si_cs_io_cb.
It is possible that the conn_stream gets detached from the stream_interface,
and as it subscribed to the wait list, si_cs_io_cb() gets called anyway,
so make sure we have a conn_stream before attempting to send more data.
This is 1.9-specific, no backport is needed.
diff --git a/src/stream_interface.c b/src/stream_interface.c
index 4b5b760..52aa7c4 100644
--- a/src/stream_interface.c
+++ b/src/stream_interface.c
@@ -760,8 +760,12 @@
struct task *si_cs_io_cb(struct task *t, void *ctx, unsigned short state)
{
struct stream_interface *si = ctx;
+ struct conn_stream *cs = objt_cs(si->end);
+
+ if (!cs)
+ return NULL;
if (!(si->wait_list.wait_reason & SUB_CAN_SEND))
- si_cs_send(__objt_cs(si->end));
+ si_cs_send(cs);
return (NULL);
}