fix memory leak found by fuzz

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/
@@ -14,8 +14,10 @@ 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
 
 %description
@@ -72,6 +74,12 @@ 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