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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 | cb4197f6218bb26900085779bf0cf161535dfbde (patch) | |
| tree | 0ff521879b54f4c65db34d99a1b8c3dff3d6472d | |
| parent | 116cc72ed46500eab12fa8e0833d9bb194fcdc2b (diff) | |
Fix a latent UAF bug in profwriter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256116 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/ProfileData/InstrProfWriter.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/ProfileData/InstrProfWriter.cpp b/lib/ProfileData/InstrProfWriter.cpp index 1e18c268892..9bb03e1e77a 100644 --- a/lib/ProfileData/InstrProfWriter.cpp +++ b/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) { |