28 lines
670 B
Diff
28 lines
670 B
Diff
From 43157490a5054bd24256fe12876931e8abc9df49 Mon Sep 17 00:00:00 2001
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From: z2_ on hackerone <>
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Date: Tue, 24 Aug 2021 09:50:33 +0200
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Subject: [PATCH] mqtt: clear the leftovers pointer when sending succeeds
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CVE-2021-22945
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Bug: https://curl.se/docs/CVE-2021-22945.html
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---
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lib/mqtt.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/lib/mqtt.c b/lib/mqtt.c
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index f077e6c3dc44..fcd40b41e600 100644
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--- a/lib/mqtt.c
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+++ b/lib/mqtt.c
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@@ -128,6 +128,10 @@ static CURLcode mqtt_send(struct Curl_easy *data,
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mq->sendleftovers = sendleftovers;
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mq->nsend = nsend;
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}
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+ else {
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+ mq->sendleftovers = NULL;
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+ mq->nsend = 0;
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+ }
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return result;
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}
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