mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-03-17 20:17:55 +02:00
avcodec/qdm2: error out of qdm2_fft_decode_tones() before entering endless loop
Fixes: signed integer overflow: 2147483646 + 2 cannot be represented in type 'int' Fixes: infinite loop Fixes: 15396/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QDM2_fuzzer-5116605501014016 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 694be24bd6c4cc9c62222f4583260bf79056e4c1) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
parent
32902cc988
commit
a85e0a0b8d
@ -1289,6 +1289,10 @@ static void qdm2_fft_decode_tones(QDM2Context *q, int duration,
|
||||
}
|
||||
offset += (n - 2);
|
||||
} else {
|
||||
if (local_int_10 <= 2) {
|
||||
av_log(NULL, AV_LOG_ERROR, "qdm2_fft_decode_tones() stuck\n");
|
||||
return;
|
||||
}
|
||||
offset += qdm2_get_vlc(gb, &vlc_tab_fft_tone_offset[local_int_8], 1, 2);
|
||||
while (offset >= (local_int_10 - 1)) {
|
||||
offset += (1 - (local_int_10 - 1));
|
||||
|
Loading…
x
Reference in New Issue
Block a user