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Fix srcfiles deallocation

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This commit is contained in:
Jeremy Rifkin 2025-02-16 18:34:49 -06:00
parent bc0164224e
commit 4ab78f7a69
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GPG Key ID: 19AA8270105E8EB4
1 changed files with 11 additions and 1 deletions
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12
src/symbols/dwarf/dwarf_resolver.cpp
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@ -206,7 +206,13 @@ namespace libdwarf {
dwarf_srclines_dealloc_b(entry.second.line_context); dwarf_srclines_dealloc_b(entry.second.line_context);
} }
for(auto& entry : srcfiles_cache) { for(auto& entry : srcfiles_cache) {
dwarf_dealloc(dbg, entry.second.first, DW_DLA_LIST); auto srcfiles = entry.second.first;
auto count = entry.second.second;
for(int i = 0; i < count; i++) {
dwarf_dealloc(dbg, srcfiles[i], DW_DLA_STRING);
srcfiles[i] = nullptr;
}
dwarf_dealloc(dbg, srcfiles, DW_DLA_LIST);
} }
// subprograms_cache needs to be destroyed before dbg otherwise there will be another use after free // subprograms_cache needs to be destroyed before dbg otherwise there will be another use after free
subprograms_cache.clear(); subprograms_cache.clear();
@ -352,6 +358,10 @@ namespace libdwarf {
// dwarf is using 1-indexing // dwarf is using 1-indexing
filename = dw_srcfiles[file_i]; filename = dw_srcfiles[file_i];
} }
for(int i = 0; i < dw_filecount; i++) {
dwarf_dealloc(cu_die.dbg, dw_srcfiles[i], DW_DLA_STRING);
dw_srcfiles[i] = nullptr;
}
dwarf_dealloc(cu_die.dbg, dw_srcfiles, DW_DLA_LIST); dwarf_dealloc(cu_die.dbg, dw_srcfiles, DW_DLA_LIST);
} else { } else {
auto off = cu_die.get_global_offset(); auto off = cu_die.get_global_offset();