Message ID | 20210131191818.17203-4-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | 25f240fcb398eb499ca4b70c026a8bb9f2a32731 |
Headers | show |
Series | [FFmpeg-devel,01/12] avcodec/hevc_sei: Check payload size in decode_nal_sei_message() | expand |
Context | Check | Description |
---|---|---|
andriy/x86_make | success | Make finished |
andriy/x86_make_fate | success | Make fate finished |
andriy/PPC64_make | success | Make finished |
andriy/PPC64_make_fate | success | Make fate finished |
diff --git a/libavformat/id3v2.c b/libavformat/id3v2.c index 97f6cc8a68..df11b5450c 100644 --- a/libavformat/id3v2.c +++ b/libavformat/id3v2.c @@ -605,7 +605,10 @@ static void read_apic(AVFormatContext *s, AVIOContext *pb, int taglen, /* mimetype */ if (isv34) { - taglen -= avio_get_str(pb, taglen, mimetype, sizeof(mimetype)); + int ret = avio_get_str(pb, taglen, mimetype, sizeof(mimetype)); + if (ret < 0 || ret >= taglen) + goto fail; + taglen -= ret; } else { if (avio_read(pb, mimetype, 3) < 0) goto fail;
Fixes: out of array access Fixes: 29446/clusterfuzz-testcase-minimized-ffmpeg_dem_AAC_fuzzer-5096222622875648 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavformat/id3v2.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)