!4 fix memory leak found by fuzz

Merge pull request !4 from ltx/master

fix-memory-leak-on-opening-corrupted-files.patch

@@ -0,0 +1,21 @@
+commit cba2f967ebcc7e15d0f33e4219a1e04e2a6fc41e
+Author: David Bryant <david@wavpack.com>
+Date:   Sun Dec 8 12:06:19 2019 -0800
+
+    fix possible memory leak on opening corrupted files
+
+diff --git a/src/open_utils.c b/src/open_utils.c
+index 170c6eb..dfb7cf6 100644
+--- a/src/open_utils.c
++++ b/src/open_utils.c
+@@ -177,6 +177,11 @@ WavpackContext *WavpackOpenFileInputEx64 (WavpackStreamReader64 *reader, void *w
+             return WavpackCloseFile (wpc);
+         }
+
++        if (!wps->wphdr.block_samples) {    // free blockbuff if we're going to loop again
++            free (wps->blockbuff);
++            wps->blockbuff = NULL;
++        }
++
+         wps->init_done = TRUE;
+     }

wavpack.spec

@@ -1,6 +1,6 @@
 Name:           wavpack
 Version:        5.1.0
-Release:        11
+Release:        12
 Summary:        Hybrid Lossless Wavefile Compressor
 License:        BSD
 Url:            http://www.wavpack.com/
@@ -14,6 +14,7 @@ Patch0004:      wavpack-0005-issue-30-issue-31-issue-32-no-multiple-format-chunk
 Patch0005:      wavpack-CVE-2019-11498.patch
 # make sure sample rate is specified and non-zero in DFF files       
 Patch0006:      CVE-2018-19841.patch
+Patch0007:      fix-memory-leak-on-opening-corrupted-files.patch
 Patch6000:      CVE-2018-19840.patch
 
 BuildRequires:  autoconf automake libtool
@@ -72,6 +73,12 @@ autoreconf -ivf
 %{_mandir}/man1/*.1*
 
 %changelog
+* Sat May 14 2020 lutianxiong <lutianxiong@huawei.com> - 5.1.0-12
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- Fix memory leak on opening corrupted files 
+
 * Sat Mar 14 2020 wangzhishun <wangzhishun1@huawei.com> - 5.1.0-11
 - Make sure sample rate is specified and non-zero in DFF files
 - Fix potential out-of-bounds heap read