[llvm-bugs] Issue 11712 in oss-fuzz: llvm/llvm-isel-fuzzer--aarch64-gisel: Null-dereference READ in selectCopy

[ClusterFuzz-External via monorail via llvm-bugs]

Comment #5 on issue 11712 by ClusterFuzz-External:  
llvm/llvm-isel-fuzzer--aarch64-gisel: Null-dereference READ in selectCopy
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11712#c5

ClusterFuzz has detected this issue as fixed in range  
201904121821:201904130302.

Detailed report: https://oss-fuzz.com/testcase?key=6215995023163392

Project: llvm
Fuzzer: libFuzzer_llvm_llvm-isel-fuzzer--aarch64-gisel
Fuzz target binary: llvm-isel-fuzzer--aarch64-gisel
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
   selectCopy
   AArch64InstructionSelector::select
   llvm::InstructionSelect::runOnMachineFunction

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201810050224:201810060232
Fixed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201904121821:201904130302

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=6215995023163392

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for  
instructions to reproduce this bug locally.

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

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