On 3/21/2022 5:19 PM, Michael Niedermayer wrote:
Fixes: member access within null pointer of type 'const FFCodec' (aka 'const
struct FFCodec')
Fixes:
45726/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-6554445419249664
Found-by: continuous fuzzing process
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavcodec/allcodecs.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index b1aa7e266b..22d56760ec 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -882,10 +882,11 @@ const AVCodec *av_codec_iterate(void **opaque)
ff_thread_once(&av_codec_static_init, av_codec_init_static);
- if (c)
+ if (c) {
*opaque = (void*)(i + 1);
-
- return &c->p;
+ return &c->p;
+ }
+ return NULL;
Can't you just do
return (const AVCodec *)c;
Or is that aliasing a problem?
}
static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id)
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