From 2dffb970074ca2e5d15a3c8e35cdd14bcf6fefe5 Mon Sep 17 00:00:00 2001
From: Jakub Jelen <jjelen@redhat.com>
Date: Wed, 28 Jun 2023 10:43:51 +0200
Subject: [PATCH] session: Avoid potential null dereference on low-memory
 conditions

CID 1500478

Thanks coverity

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Norbert Pocs <npocs@redhat.com>
(cherry picked from commit ebea7d9023c0724ce0f20993d00883dcbb8645da)
(cherry picked from commit 1c6e7dd3c33e0681964631c1ebc619160a09a4bd)
---
 src/session.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/session.c b/src/session.c
index 3199096a..0cf59e99 100644
--- a/src/session.c
+++ b/src/session.c
@@ -643,6 +643,10 @@ int ssh_handle_packets(ssh_session session, int timeout) {
     }
 
     spoll = ssh_socket_get_poll_handle(session->socket);
+    if (spoll == NULL) {
+        ssh_set_error_oom(session);
+        return SSH_ERROR;
+    }
     ssh_poll_add_events(spoll, POLLIN);
     ctx = ssh_poll_get_ctx(spoll);