ffmpeg:ffmpeg_AV_CODEC_ID_DIRAC_fuzzer: Crash in ff_dequant_subband_32_sse4

Type ossfuzz
Reporter Google
Modified 2020-03-01T19:59:37


Project: https://git.ffmpeg.org/ffmpeg.git

Detailed Report: https://oss-fuzz.com/testcase?key=5729372837511168

Project: ffmpeg Fuzzing Engine: libFuzzer Fuzz Target: ffmpeg_AV_CODEC_ID_DIRAC_fuzzer Job Type: libfuzzer_ubsan_ffmpeg Platform Id: linux

Crash Type: UNKNOWN READ Crash Address: 0x00000bba5000 Crash State: ff_dequant_subband_32_sse4

Sanitizer: undefined (UBSAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_ubsan_ffmpeg&range=201710020426:201711010348

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5729372837511168

Issue filed automatically.

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This bug is subject to a 90 day disclosure deadline. If 90 days elapse without an upstream patch, then the bug report will automatically become visible to the public.