Fixes: use of uninitialized memory Fixes: 394990189/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-6431722199908352
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/mov.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index ccaa988e4be..8f1c5df3c96 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -1407,7 +1407,9 @@ static int mov_read_adrm(MOVContext *c, AVIOContext *pb, MOVAtom atom) avio_read(pb, output, 8); // go to offset 8, absolute position 0x251 avio_read(pb, input, DRM_BLOB_SIZE); avio_read(pb, output, 4); // go to offset 4, absolute position 0x28d - avio_read(pb, file_checksum, 20); + ret = ffio_read_size(pb, file_checksum, 20); + if (ret < 0) + goto fail; // required by external tools ff_data_to_hex(checksum_string, file_checksum, sizeof(file_checksum), 1); -- 2.50.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
