ffmpeg | branch: release/4.0 | Michael Niedermayer <mich...@niedermayer.cc> | Tue Oct 29 19:12:23 2019 +0100| [70bf2bdf3112e93726eb93d02df02f964cb46596] | committer: Michael Niedermayer
avcodec/iff: Move index use after check in decodeplane8() 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 <mich...@niedermayer.cc> (cherry picked from commit a1f8b36cc45406f66aac635a4db32d2a5cc29f43) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=70bf2bdf3112e93726eb93d02df02f964cb46596 --- libavcodec/iff.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavcodec/iff.c b/libavcodec/iff.c index 3d9ce9d29c..8a2ae2542d 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); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
