[llvm-bugs] Issue 9947 in oss-fuzz: llvm/llvm-demangle-fuzzer: Stack-overflow in Db<DefaultAllocator>::parseEncoding

[ClusterFuzz-External via monorail via llvm-bugs]

Comment #2 on issue 9947 by ClusterFuzz-External:  
llvm/llvm-demangle-fuzzer: Stack-overflow in  
Db<DefaultAllocator>::parseEncoding
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9947#c2

ClusterFuzz has detected this issue as fixed in range  
201808200140:201808202008.

Detailed report: https://oss-fuzz.com/testcase?key=5096757879898112

Project: llvm
Fuzzer: libFuzzer_llvm_llvm-demangle-fuzzer
Fuzz target binary: llvm-demangle-fuzzer
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7fff0004dfe0
Crash State:
   Db<DefaultAllocator>::parseEncoding
   Db<DefaultAllocator>::parseName

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201808160456:201808170407
Fixed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201808200140:201808202008

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5096757879898112

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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