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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-01-12 21:23:21 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-01-15 19:34:39 +0100 |
| commit | 1ab0f83b0a243c635d77f8b116646bb7594988d4 (patch) | |
| tree | a4eb1b3e8650ddf3f562349e0c898f1d49e52935 | |
| parent | e7755b433e913e32bb061f17d5ecfcbcfef995b7 (diff) | |
avcodec/wbmpdec: use remaining size not whole size
Fixes: out of array access
Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WBMP_fuzzer-6652634692190208
Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WBMP_fuzzer-6653703453278208
Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WBMP_fuzzer-6668020758216704
Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WBMP_fuzzer-6684749875249152
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/wbmpdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/wbmpdec.c b/libavcodec/wbmpdec.c index 9638b55b94..8b105bc135 100644 --- a/libavcodec/wbmpdec.c +++ b/libavcodec/wbmpdec.c @@ -72,7 +72,7 @@ static int wbmp_decode_frame(AVCodecContext *avctx, AVFrame *p, if (p->linesize[0] == (width + 7) / 8) bytestream2_get_buffer(&gb, p->data[0], height * ((width + 7) / 8)); else - readbits(p->data[0], width, height, p->linesize[0], gb.buffer, gb.buffer_end - gb.buffer_start); + readbits(p->data[0], width, height, p->linesize[0], gb.buffer, gb.buffer_end - gb.buffer); p->key_frame = 1; p->pict_type = AV_PICTURE_TYPE_I; |