[llvm-bugs] Issue 16679 in oss-fuzz: llvm:clang-fuzzer: ASSERT: R.isValid() && "Must have a valid source range"

[ClusterFuzz-External via monorail via llvm-bugs]

Status: New
Owner: ----
CC: kcc at google.com, mascasa at google.com, jdevlieg... at apple.com,  
igm... at gmail.com, mitchp at google.com, bigchees... at gmail.com,  
eneyman at google.com, llvm-b... at lists.llvm.org, jfb at chromium.org,  
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akils... at apple.com
Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer OS-Linux Proj-llvm Reported-2019-08-23
Type: Bug

New issue 16679 by ClusterFuzz-External: llvm:clang-fuzzer: ASSERT:  
R.isValid() && "Must have a valid source range"
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16679

Detailed Report: https://oss-fuzz.com/testcase?key=5660231211679744

Project: llvm
Fuzzing Engine: libFuzzer
Fuzz Target: clang-fuzzer
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: ASSERT
Crash Address:
Crash State:
   R.isValid() && "Must have a valid source range"
   clang::Sema::RequireCompleteDeclContext
   clang::Sema::BuildCXXNestedNameSpecifier

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201908140336:201908150335

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5660231211679744

Issue filed automatically.

See https://google.github.io/oss-fuzz/advanced-topics/reproducing for  
instructions to reproduce this bug locally.

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