[FFmpeg-devel] [PATCH 3/4] avcodec/utils: Check close before calling it

[Michael Niedermayer]

Fixes: NULL pointer dereference
Fixes: 15733/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IDF_fuzzer-5658616977162240

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavcodec/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 9ff9628f7f..66c68d1cf5 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -1024,7 +1024,7 @@ end:
 
     return ret;
 free_and_end:
-    if (avctx->codec &&
+    if (avctx->codec && avctx->codec->close &&
         (codec_init_ok ||
          (avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
         avctx->codec->close(avctx);
-- 
2.22.0