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Commit Graph

5 Commits (b181868aba5741a36b8ec56fec6b960313c88a7f)

Author	SHA1	Message	Date
Pierre-Anthony Lemieux	a1384b4e86	avcodec/jpeg2000htdec: check if block decoding will exceed internal precision ... Intended to replace https://patchwork.ffmpeg.org/project/ffmpeg/patch/20230802000135.26482-3-michael@niedermayer.cc/ with a more accurate block decoding magnitude bound. Fixes: 62433/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEG2000_fuzzer-5828618092937216 Fixes: 58299/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEG2000_fuzzer-5828618092937216 Previous-version-reviewed-by: Tomas Härdin <git@haerdin.se> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	1 year ago
Michael Niedermayer	9549712056	avcodec/jpeg2000htdec: Consolidate jpeg2000 spec bits in jpeg2000_bitbuf_refill_backwards() ... Code should make more sense now Fixes: out of array access Fixes: 58299/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEG2000_fuzzer-6627570448465920 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Pierre-Anthony Lemieux <pal@sandflow.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
Michael Niedermayer	044ab532fc	avcodec/jpeg2000htdec: Avoid freeing uninitialized pointers in ff_jpeg2000_decode_htj2k() ... Fixes: freeing of uninitialized pointers Fixes: part of 58299 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Tomas Härdin <git@haerdin.se> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
caleb	043a9d09cb	avcodec/jpeg2000htdec: Check for invalid magref length. ... Fixes: shift exponent -8 is negative Fixes: 58328/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEG2000_fuzzer-6007789196804096 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
caleb	b9c42cdf8d	avcodec/jpeg2000dec: add support for HTJ2K block decoding ... Signed-off-by: Pierre-Anthony Lemieux <pal@palemieux.com>	2 years ago