[llvm-bugs] Issue 3841 in oss-fuzz: llvm/clangd-fuzzer: ASSERT: Val && "isa<> used on a null pointer"

[monor… via monorail via llvm-bugs]

Comment #2 on issue 3841 by  
monor... at clusterfuzz-external.iam.gserviceaccount.com: llvm/clangd-fuzzer:  
ASSERT: Val && "isa<> used on a null pointer"
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3841#c2

ClusterFuzz has detected this issue as fixed in range  
201710270453:201710280456.

Detailed report: https://oss-fuzz.com/testcase?key=6197943120953344

Project: llvm
Fuzzer: libFuzzer_llvm_clangd-fuzzer
Fuzz target binary: clangd-fuzzer
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: ASSERT
Crash Address:
Crash State:
   Val && "isa<> used on a null pointer"
   clang::clangd::JSONRPCDispatcher::call
   clang::clangd::runLanguageServerLoop

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201710260448:201710270453
Fixed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201710270453:201710280456

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=6197943120953344

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for  
more information.

If you suspect that the result above is incorrect, try re-doing that job on  
the test case report page.

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