| Message ID | 20191114163408.16682-2-michael@niedermayer.cc |
|---|---|
| State | New |
| Headers | show |
diff --git a/libavcodec/iff.c b/libavcodec/iff.c index 500f9bf367..0656ae5509 100644 --- a/libavcodec/iff.c +++ b/libavcodec/iff.c @@ -456,11 +456,12 @@ static av_cold int decode_init(AVCodecContext *avctx) */ static void decodeplane8(uint8_t *dst, const uint8_t *buf, int buf_size, int plane) { - const uint64_t *lut = plane8_lut[plane]; + const uint64_t *lut; if (plane >= 8) { av_log(NULL, AV_LOG_WARNING, "Ignoring extra planes beyond 8\n"); return; } + lut = plane8_lut[plane]; do { uint64_t v = AV_RN64A(dst) | lut[*buf++]; AV_WN64A(dst, v);
Fixes: index 9 out of bounds for type 'const uint64_t [8][256]' Fixes: 18409/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5767030560522240 Fixes: 18720/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5651995784642560 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/iff.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)