CVE: CVE-2021-22945
|
Upstream-Status: Backport
|
Signed-off-by: Ross Burton <ross.burton@arm.com>
|
|
From 92cb3059dab2f9ef3e6ea614dad5c86917d19807 Mon Sep 17 00:00:00 2001
|
From: z2_ on hackerone <>
|
Date: Tue, 24 Aug 2021 09:50:33 +0200
|
Subject: [PATCH 1/3] mqtt: clear the leftovers pointer when sending succeeds
|
|
CVE-2021-22945
|
|
Bug: https://curl.se/docs/CVE-2021-22945.html
|
---
|
lib/mqtt.c | 4 ++++
|
1 file changed, 4 insertions(+)
|
|
diff --git a/lib/mqtt.c b/lib/mqtt.c
|
index f077e6c3d..fcd40b41e 100644
|
--- a/lib/mqtt.c
|
+++ b/lib/mqtt.c
|
@@ -128,6 +128,10 @@ static CURLcode mqtt_send(struct Curl_easy *data,
|
mq->sendleftovers = sendleftovers;
|
mq->nsend = nsend;
|
}
|
+ else {
|
+ mq->sendleftovers = NULL;
|
+ mq->nsend = 0;
|
+ }
|
return result;
|
}
|
|
--
|
2.25.1
|
