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| author | Eugene Leviant <eleviant@accesssoftek.com> | 2019-06-13 13:25:20 +0000 |
|---|---|---|
| committer | Eugene Leviant <eleviant@accesssoftek.com> | 2019-06-13 13:25:20 +0000 |
| commit | 407c8f1f4932dc4fdbb0236029226449481684c5 (patch) | |
| tree | c36cbdaea8760670519ac7a08f1644ac08cfa289 /llvm/lib/Support | |
| parent | d2cd9c23b4ec648a46fcc12f4b0972212df5051a (diff) | |
| download | bcm5719-llvm-407c8f1f4932dc4fdbb0236029226449481684c5.tar.gz bcm5719-llvm-407c8f1f4932dc4fdbb0236029226449481684c5.zip | |
Extra error checking to ARMAttributeParser
The patch checks for subsection length as discussed in D63191
llvm-svn: 363260
Diffstat (limited to 'llvm/lib/Support')
| -rw-r--r-- | llvm/lib/Support/ARMAttributeParser.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Support/ARMAttributeParser.cpp b/llvm/lib/Support/ARMAttributeParser.cpp index 08b939a8734..65ee51f1319 100644 --- a/llvm/lib/Support/ARMAttributeParser.cpp +++ b/llvm/lib/Support/ARMAttributeParser.cpp @@ -709,6 +709,12 @@ void ARMAttributeParser::Parse(ArrayRef<uint8_t> Section, bool isLittle) { SW->indent(); } + if (SectionLength == 0 || (SectionLength + Offset) > Section.size()) { + errs() << "invalid subsection length " << SectionLength << " at offset " + << Offset << "\n"; + return; + } + ParseSubsection(Section.data() + Offset, SectionLength); Offset = Offset + SectionLength; |
