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Add ELF header analysis when checking for instruction pointer in code.

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If the minidump module containing the instruction pointer has memory
containing the ELF header and program header table, when checking the
exploitability rating, the processor will use the ELF header data to determine
if the instruction pointer lies in an executable region of the module, rather
than just checking if it lies in a module.

R=ivanpe@chromium.org

Review URL: https://codereview.chromium.org/1233973002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1472 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
Liu.andrew.x@gmail.com
2015-07-16 20:42:29 +00:00
parent d74d407688
commit 4ef4c7a595
9 changed files with 207 additions and 10 deletions
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12
src/processor/exploitability_unittest.cc
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@@ -119,6 +119,18 @@ TEST(ExploitabilityTest, TestLinuxEngine) {
ExploitabilityFor("linux_null_dereference.dmp"));
ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH,
ExploitabilityFor("linux_jmp_to_0.dmp"));
ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH,
ExploitabilityFor("linux_inside_elf_header.dmp"));
ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH,
ExploitabilityFor("linux_outside_module.dmp"));
ASSERT_EQ(google_breakpad::EXPLOITABILITY_NONE,
ExploitabilityFor("linux_raise_sigabrt.dmp"));
ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH,
ExploitabilityFor("linux_in_module_outside_executable_part.dmp"));
ASSERT_EQ(google_breakpad::EXPLOITABILITY_INTERESTING,
ExploitabilityFor("linux_inside_module_exe_region1.dmp"));
ASSERT_EQ(google_breakpad::EXPLOITABILITY_INTERESTING,
ExploitabilityFor("linux_inside_module_exe_region2.dmp"));
}
}