Fixes: memory corruption
Fixes: 
16702/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PNG_fuzzer-5768418552184832

Found-by: continuous fuzzing process 
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
 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 e22a0c5c34..901dbca385 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -194,6 +194,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t 
size) {
     // Read very simple container
     AVPacket avpkt, parsepkt;
     av_init_packet(&avpkt);
+    av_init_packet(&parsepkt);
     while (data < end && it < maxiteration) {
         // Search for the TAG
         while (data + sizeof(fuzz_tag) < end) {
-- 
2.23.0

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