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[FFmpeg-devel,5/5] avformat/avs: Check if return code is representable

Message ID 20230920003034.7241-5-michael@niedermayer.cc
State Accepted
Commit 52d666edec73c834c60811e330f86a7cf1d916da
Headers show
Series [FFmpeg-devel,1/5] avcodec/flacdec: Fix overflow in "33bit" decorrelate | expand

Checks

Context Check Description
andriy/make_x86 success Make finished
andriy/make_fate_x86 success Make fate finished

Commit Message

Michael Niedermayer Sept. 20, 2023, 12:30 a.m. UTC 
Fixes: leak
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_dem_AVS_fuzzer-6738814988320768

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavformat/avs.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/libavformat/avs.c b/libavformat/avs.c
index ab47980a11c..19f03731573 100644
--- a/libavformat/avs.c
+++ b/libavformat/avs.c
@@ -140,6 +140,10 @@  static int avs_read_audio_packet(AVFormatContext * s, AVPacket * pkt)
         return 0;    /* this indicate EOS */
     if (ret < 0)
         return ret;
+    if (size != (int)size) {
+        av_packet_unref(pkt);
+        return AVERROR(EDOM);
+    }
 
     pkt->stream_index = avs->st_audio->index;
     pkt->flags |= AV_PKT_FLAG_KEY;