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| author | James Y Knight <jyknight@google.com> | 2019-06-04 15:27:19 +0000 |
|---|---|---|
| committer | James Y Knight <jyknight@google.com> | 2019-06-04 15:27:19 +0000 |
| commit | dbb4322e511b6be756c8fd0a1ee1697b5b110de9 (patch) | |
| tree | 793396eaf3f0bb1ccdb142ee6aa5014e14d22875 | |
| parent | 3144d7a2daa37e9570d708f14e4d3703ea759e72 (diff) | |
| download | bcm5719-llvm-dbb4322e511b6be756c8fd0a1ee1697b5b110de9.tar.gz bcm5719-llvm-dbb4322e511b6be756c8fd0a1ee1697b5b110de9.zip | |
[lldb] Fix out-of-bounds read after c3ea7c66fec021867e005ad1b02f3c7e80feaa85
"Add support for mid-function epilogues on x86 that end in a non-local jump."
Detected by asan.
llvm-svn: 362510
| -rw-r--r-- | lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp b/lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp index e4d5ff0d353..af54115c2db 100644 --- a/lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp +++ b/lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp @@ -736,7 +736,6 @@ bool x86AssemblyInspectionEngine::pc_rel_branch_or_jump_p ( int opcode_size = 0; uint8_t b1 = m_cur_insn[0]; - uint8_t b2 = m_cur_insn[1]; switch (b1) { case 0x77: // JA/JNBE rel8 @@ -764,6 +763,7 @@ bool x86AssemblyInspectionEngine::pc_rel_branch_or_jump_p ( break; } if (b1 == 0x0f && opcode_size == 0) { + uint8_t b2 = m_cur_insn[1]; switch (b2) { case 0x87: // JA/JNBE rel16/rel32 case 0x86: // JBE/JNA rel16/rel32 |
