From c757fa513ebb00a4369540c0db1a86b0913b077a Mon Sep 17 00:00:00 2001
From: Michael Dawson <mdawson@devrus.com>
Date: Mon, 25 Oct 2021 14:39:34 -0400
Subject: [PATCH] crypto: add missing null check
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Add null check before using result of
ERR_reason_error_string. Coverity reported as an issue
and we seem to do a null check in other places we call
the function.

Signed-off-by: Michael Dawson <mdawson@devrus.com>

PR-URL: https://github.com/nodejs/node/pull/40598
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
---
 src/crypto/crypto_context.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/crypto/crypto_context.cc b/src/crypto/crypto_context.cc
index 4ecd8a8c4204fc..739b559c3b7b22 100644
--- a/src/crypto/crypto_context.cc
+++ b/src/crypto/crypto_context.cc
@@ -1037,6 +1037,8 @@ void SecureContext::LoadPKCS12(const FunctionCallbackInfo<Value>& args) {
     // TODO(@jasnell): Should this use ThrowCryptoError?
     unsigned long err = ERR_get_error();  // NOLINT(runtime/int)
     const char* str = ERR_reason_error_string(err);
+    str = str != nullptr ? str : "Unknown error";
+
     return env->ThrowError(str);
   }
 }