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| author | Mitch Phillips <mitchphillips@outlook.com> | 2017-10-24 23:56:12 +0000 |
|---|---|---|
| committer | Mitch Phillips <mitchphillips@outlook.com> | 2017-10-24 23:56:12 +0000 |
| commit | fa2eda860953aea926ae2ba027e87632aed204d2 (patch) | |
| tree | 1291a5d29eaf52b13c89cfe37c119899c7b4d85b /llvm/lib/CodeGen/MachineScheduler.cpp | |
| parent | 506ecbb946e504bf8b181f9b6c961c9e44087643 (diff) | |
| download | llvm-fa2eda860953aea926ae2ba027e87632aed204d2.zip llvm-fa2eda860953aea926ae2ba027e87632aed204d2.tar.gz llvm-fa2eda860953aea926ae2ba027e87632aed204d2.tar.bz2 | |
Check special-case-list regex before insertion.
Summary:
Checks that the supplied regex to SpecialCaseList::Matcher::insert(..) is non-empty.
Reported by OSS-fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3688
Verified that this fixes the provided assertion failure (built with {asan, fuzzer}):
```
mitchp@mitchp2:~/llvm-build/git-fuzz$ ninja llvm-special-case-list-fuzzer[12/12] Linking CXX executable bin/llvm-special-case-list-fuzzer
mitchp@mitchp2:~/llvm-build/git-fuzz$ bin/llvm-special-case-list-fuzzer ~/Downloads/clusterfuzz-testcase-6748633157337088
INFO: Seed: 1697404507
INFO: Loaded 1 modules (18581 inline 8-bit counters): 18581 [0x9e9f60, 0x9ee7f5),
INFO: Loaded 1 PC tables (18581 PCs): 18581 [0x9ee7f8,0xa37148),
bin/llvm-special-case-list-fuzzer: Running 1 inputs 1 time(s) each.
Running: /usr/local/google/home/mitchp/Downloads/clusterfuzz-testcase-6748633157337088
Executed /usr/local/google/home/mitchp/Downloads/clusterfuzz-testcase-6748633157337088 in 0 ms
***
*** NOTE: fuzzing was not performed, you have only
*** executed the target code on a fixed set of inputs.
***
mitchp@mitchp2:~/llvm-build/git-fuzz$
```
Reviewers: kcc, vsk
Reviewed By: vsk
Subscribers: vsk, llvm-commits, vlad.tsyrklevich
Differential Revision: https://reviews.llvm.org/D39212
llvm-svn: 316537
Diffstat (limited to 'llvm/lib/CodeGen/MachineScheduler.cpp')
0 files changed, 0 insertions, 0 deletions