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| author | Xinliang David Li <davidxl@google.com> | 2015-12-20 08:46:18 +0000 |
|---|---|---|
| committer | Xinliang David Li <davidxl@google.com> | 2015-12-20 08:46:18 +0000 |
| commit | 6005728843649b782b6a40062caeb14616f1d218 (patch) | |
| tree | 73287b800af8a9e5bcfe360a0a2fc035e6d18545 /llvm/lib/ProfileData/InstrProfWriter.cpp | |
| parent | 613c6862fad9a970b1e45e8e2503b71c31a9762a (diff) | |
| download | bcm5719-llvm-6005728843649b782b6a40062caeb14616f1d218.tar.gz bcm5719-llvm-6005728843649b782b6a40062caeb14616f1d218.zip | |
Fix a latent UAF bug in profwriter
llvm-svn: 256116
Diffstat (limited to 'llvm/lib/ProfileData/InstrProfWriter.cpp')
| -rw-r--r-- | llvm/lib/ProfileData/InstrProfWriter.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/ProfileData/InstrProfWriter.cpp b/llvm/lib/ProfileData/InstrProfWriter.cpp index 1e18c268892..9bb03e1e77a 100644 --- a/llvm/lib/ProfileData/InstrProfWriter.cpp +++ b/llvm/lib/ProfileData/InstrProfWriter.cpp @@ -108,6 +108,8 @@ std::error_code InstrProfWriter::addRecord(InstrProfRecord &&I, if (NewFunc) { // We've never seen a function with this name and hash, add it. Dest = std::move(I); + // Fix up the name to avoid dangling reference. + Dest.Name = FunctionData.find(Dest.Name)->getKey(); Result = instrprof_error::success; if (Weight > 1) { for (auto &Count : Dest.Counts) { |
