FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	8e58d20e10	avcodec/bonk: Check ntaps against buffer size Fixes: out of array read Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BONK_fuzzer-6739246658748416 Note: This issue was assigned to a unrelated theora bug Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
Michael Niedermayer	977028f9f4	avcodec/bonk: Avoid undefined overflow in quant Fixes: signed integer overflow: -2889074 * 2048 cannot be represented in type 'int' Fixes: 51363/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BONK_fuzzer-5660734784143360 Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BONK_fuzzer-6617680050520064 Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BONK_fuzzer-6743951854141440 No check is done for the overflow as this was rejected in last review, see the ML Note: the 2nd and 3rd testcase was assigned by ossfuzz to a unrelated theora issue (48567) Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
Paul B Mahol	5852682dbd	avcodec/bonk: increase level limit as joint encodings needs more	2 years ago
Michael Niedermayer	8f975641d7	avcodec/bonk: Use unsigned in predictor_init_state() to avoid undefined behavior Fixes: signed integer overflow: -5010 * -717450 cannot be represented in type 'int' Fixes: 53370/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BONK_fuzzer-4945644204195840 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
Paul B Mahol	abb5ff373d	avcodec/bonk: check level value to not reach invalid values Also reset bitstream parsing variables on fatal error.	2 years ago
Michael Niedermayer	104b516a13	avcodec/bonk: step cannot become 0 without overflowing which is undefined also the original reference code does not contain a 0 check Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
Michael Niedermayer	5df8c300a9	avcodec/bonk: actual_run seems not able to become negative Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
Michael Niedermayer	00b489b168	avcodec/bonk: Remove special 32bit case from read_uint_max() This case seems not to match the reference decoder and it also seems not reachable Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
Michael Niedermayer	8e59e72041	avcodec/bonk: steplet cannot become negative Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
Michael Niedermayer	3263185225	avcodec/bonk: Check step against overflow No testcase Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
Michael Niedermayer	9f00286c4c	avcodec/bonk: Simplify read_uint_max() The max == 0 case can be removed too but i left it as 50% of the cases use it Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
Michael Niedermayer	f4df49eb48	avcodec/bonk: Use unsigned in predictor_calc_error() to avoid undefined overflows Fixes: signed integer overflow: 22 * -2107998208 cannot be represented in type 'int' Fixes: 51363/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BONK_fuzzer-5660734784143360 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
Andreas Rheinhardt	8d12f3de14	avcodec/bonk: Actually clip when using av_clip() Also fixes a "statement with no effect [-Wunused-value]" warning from GCC. Reviewed-by: James Almer <jamrial@gmail.com> Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	2 years ago
Paul B Mahol	88170070c4	avcodec: add bonk audio decoder	2 years ago

14 Commits (6869a80e76f7f597896e60a0feaa7a32b1aa57ae)