| Message ID | 20221116233220.5183-3-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | b2c1a0fc2b196d4cdbaae5b120229138857b559f |
| Headers | show |
| Series | [FFmpeg-devel,1/3] avcodec/bonk: Use unsigned in predictor_init_state() to avoid undefined behavior | expand |
| Context | Check | Description |
|---|---|---|
| yinshiyou/make_loongarch64 | success | Make finished |
| yinshiyou/make_fate_loongarch64 | success | Make fate finished |
| andriy/make_x86 | success | Make finished |
| andriy/make_fate_x86 | success | Make fate finished |
diff --git a/libavcodec/apac.c b/libavcodec/apac.c index e9f6a0dd88..72ff41bdbb 100644 --- a/libavcodec/apac.c +++ b/libavcodec/apac.c @@ -204,7 +204,7 @@ static int apac_decode(AVCodecContext *avctx, AVFrame *frame, for (int i = 0; i < c->block_length; i++) { int val = get_bits_long(gb, c->bit_length); - int delta = (val & 1) ? ~(val >> 1) : (val >> 1); + unsigned delta = (val & 1) ? ~(val >> 1) : (val >> 1); int sample; delta += c->last_delta;
Fixes: signed integer overflow: -2146670226 + -2227242 cannot be represented in type 'int' Fixes: 51943/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APAC_fuzzer-5779018251370496 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/apac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)