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| author | Nico Weber <nicolasweber@gmx.de> | 2019-04-03 23:19:39 +0000 |
|---|---|---|
| committer | Nico Weber <nicolasweber@gmx.de> | 2019-04-03 23:19:39 +0000 |
| commit | 321de48a94096f83a4be5164bce462e6285413c7 (patch) | |
| tree | 077c668ee2ff861d0bb7b97faad9e47181d396d2 /llvm/lib/Demangle | |
| parent | c7444ddfe5791bff8cfb3369df84669d0af8e800 (diff) | |
| download | bcm5719-llvm-321de48a94096f83a4be5164bce462e6285413c7.tar.gz bcm5719-llvm-321de48a94096f83a4be5164bce462e6285413c7.zip | |
llvm-undname: Fix an assert-on-invalid
Found by oss-fuzz, fixes issues 12428 and 12429 on oss-fuzz.
Differential Revision: https://reviews.llvm.org/D60204
llvm-svn: 357647
Diffstat (limited to 'llvm/lib/Demangle')
| -rw-r--r-- | llvm/lib/Demangle/MicrosoftDemangle.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Demangle/MicrosoftDemangle.cpp b/llvm/lib/Demangle/MicrosoftDemangle.cpp index b8e39c41527..b4e5cef7ac5 100644 --- a/llvm/lib/Demangle/MicrosoftDemangle.cpp +++ b/llvm/lib/Demangle/MicrosoftDemangle.cpp @@ -466,6 +466,10 @@ IdentifierNode * Demangler::demangleFunctionIdentifierCode(StringView &MangledName) { assert(MangledName.startsWith('?')); MangledName = MangledName.dropFront(); + if (MangledName.empty()) { + Error = true; + return nullptr; + } if (MangledName.consumeFront("__")) return demangleFunctionIdentifierCode( @@ -637,6 +641,7 @@ translateIntrinsicFunctionCode(char CH, FunctionIdentifierCodeGroup Group) { IdentifierNode * Demangler::demangleFunctionIdentifierCode(StringView &MangledName, FunctionIdentifierCodeGroup Group) { + assert(!MangledName.empty()); switch (Group) { case FunctionIdentifierCodeGroup::Basic: switch (char CH = MangledName.popFront()) { |
