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| author | Kuang-che Wu <kcwu@chromium.org> | 2021-10-30 22:27:49 +0800 |
|---|---|---|
| committer | Kuang-che Wu <kcwu@chromium.org> | 2021-10-30 22:27:49 +0800 |
| commit | 45b8e057934b5f565013f29f4f461aaca051a56d (patch) | |
| tree | 155bcc41bdec06bb7446022af317eab102392c44 | |
| parent | 873f5a979e6245deb8ef9659152e2af034f85ce2 (diff) | |
| download | afl++-45b8e057934b5f565013f29f4f461aaca051a56d.tar.gz | |
fix off by one bug of PCGUARD instrumentation
fix bug #1120
| -rw-r--r-- | instrumentation/SanitizerCoverageLTO.so.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/instrumentation/SanitizerCoverageLTO.so.cc b/instrumentation/SanitizerCoverageLTO.so.cc index d90fa867..7a3d8c4d 100644 --- a/instrumentation/SanitizerCoverageLTO.so.cc +++ b/instrumentation/SanitizerCoverageLTO.so.cc @@ -1049,7 +1049,7 @@ bool ModuleSanitizerCoverage::instrumentModule( uint32_t write_loc = afl_global_id; - if (afl_global_id % 8) write_loc = (((afl_global_id + 8) >> 3) << 3); + write_loc = (((afl_global_id + 8) >> 3) << 3); GlobalVariable *AFLFinalLoc = new GlobalVariable(M, Int32Tyi, true, GlobalValue::ExternalLinkage, 0, |