libhevc:hevc_dec_fuzzer: Use-of-uninitialized-value in ihevc_recon_4x4_ttype1

2019-11-17T15:45:35
ID OSSFUZZ-18991
Type ossfuzz
Reporter Google
Modified 2020-02-17T18:25:15

Description

Project: https://android.googlesource.com/platform/external/libhevc

Detailed Report: https://oss-fuzz.com/testcase?key=5630411484430336

Project: libhevc Fuzzing Engine: libFuzzer Fuzz Target: hevc_dec_fuzzer Job Type: libfuzzer_msan_libhevc Platform Id: linux

Crash Type: Use-of-uninitialized-value Crash Address: Crash State: ihevc_recon_4x4_ttype1 ihevcd_iquant_itrans_recon_ctb ihevcd_process

Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Crash Revision: https://oss-fuzz.com/revisions?job=libfuzzer_msan_libhevc&revision=201909060229

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5630411484430336

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.