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Fix corrupted symbol file due to malformed INLINE/INLINE_ORIGIN records

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- Ignore DW_TAG_inlined_subroutine with empty range.
- Don't stop parsing after parsing malformed INLINE/INLINE_ORIGIN
records, because reports can still be generated without them but won't
have inlined frames.

Bug: 1190878
Change-Id: I445105ad06b9146268f7d064e85b0d162c3f2a39
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/3321166
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
This commit is contained in:
Zequan Wu 2021-12-07 12:37:07 -08:00 committed by Joshua Peraza
parent 0ae29c99d1
commit 647aa17a7a
2 changed files with 9 additions and 2 deletions
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5
src/common/dwarf_cu_to_module.cc
View file

@ -652,6 +652,11 @@ void DwarfCUToModule::InlineHandler::Finish() {
}
}
// Ignore DW_TAG_inlined_subroutine with empty range.
if (ranges.empty()) {
return;
}
// Every DW_TAG_inlined_subroutine should have a DW_AT_abstract_origin.
assert(specification_offset_ != 0);

6
src/processor/basic_source_line_resolver.cc
View file

@ -128,6 +128,7 @@ bool BasicSourceLineResolver::Module::LoadMapFromMemory(
linked_ptr<Function> cur_func;
int line_number = 0;
int num_errors = 0;
int inline_num_errors = 0;
char* save_ptr;
// If the length is 0, we can still pretend we have a symbol file. This is
@ -208,12 +209,13 @@ bool BasicSourceLineResolver::Module::LoadMapFromMemory(
} else if (strncmp(buffer, "INLINE ", 7) == 0) {
linked_ptr<Inline> in = ParseInline(buffer);
if (!in.get())
LogParseError("ParseInline failed", line_number, &num_errors);
LogParseError("ParseInline failed", line_number, &inline_num_errors);
else
cur_func->AppendInline(in);
} else if (strncmp(buffer, "INLINE_ORIGIN ", 14) == 0) {
if (!ParseInlineOrigin(buffer)) {
LogParseError("ParseInlineOrigin failed", line_number, &num_errors);
LogParseError("ParseInlineOrigin failed", line_number,
&inline_num_errors);
}
} else {
if (!cur_func.get()) {