From eebfb13053a06433408f3b7b43837e3b2c7a8145 Mon Sep 17 00:00:00 2001
From: aaronbuchwald <aaron.buchwald56@gmail.com>
Date: Mon, 28 Sep 2020 08:24:01 -0400
Subject: [PATCH] core: free pointer from slice after popping element from
price heap (#21572)
* Fix potential memory leak in price heap
* core: nil free pointer slice (alternative version)
Co-authored-by: Martin Holst Swende <martin@swende.se>
---
core/tx_list.go | 1 +
1 file changed, 1 insertion(+)
diff --git a/core/tx_list.go b/core/tx_list.go
index bf304eedc..cdd3df14c 100644
--- a/core/tx_list.go
+++ b/core/tx_list.go
@@ -433,6 +433,7 @@ func (h *priceHeap) Pop() interface{} {
old := *h
n := len(old)
x := old[n-1]
+ old[n-1] = nil
*h = old[0 : n-1]
return x
}
--
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