From: teor <teor2345@gmail.com>
Date: Thu, 15 Jun 2017 23:38:18 +0000 (+1000)
Subject: Check if tor_compress_new() returns NULL in tor_compress_impl()
X-Git-Tag: tor-0.3.1.4-alpha~41^2~5
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=8e1b37a4aa9d6277637f82100ac1823a6a193c63;p=thirdparty%2Ftor.git

Check if tor_compress_new() returns NULL in tor_compress_impl()

Partial fix to 22626.
---

diff --git a/src/common/compress.c b/src/common/compress.c
index 6513029f9c..92b64d1e91 100644
--- a/src/common/compress.c
+++ b/src/common/compress.c
@@ -128,6 +128,11 @@ tor_compress_impl(int compress,
           // inputs.
           tor_compress_free(stream);
           stream = tor_compress_new(compress, method, compression_level);
+          if (stream == NULL) {
+            log_warn(LD_GENERAL, "NULL stream while %scompressing",
+                     compress?"":"de");
+            goto err;
+          }
         }
         break;
       case TOR_COMPRESS_OK: