[FFmpeg-cvslog] tools/target_dec_fuzzer: Fix parser_avctx memleak on error path

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sat Jun 30 15:48:58 2018 +0200| [9f0077cc0397cb4ab24f33d38248beb604eb0ff5] | committer: Michael Niedermayer

tools/target_dec_fuzzer: Fix parser_avctx memleak on error path

Fixes: oss-fuzz issue 9195

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9f0077cc0397cb4ab24f33d38248beb604eb0ff5
---

 tools/target_dec_fuzzer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
index ed9cbeaec8..3146bf2c1a 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -190,6 +190,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
     int res = avcodec_open2(ctx, c, NULL);
     if (res < 0) {
         av_free(ctx);
+        av_free(parser_avctx);
         return 0; // Failure of avcodec_open2() does not imply that a issue was found
     }