Vector35 / Vector35/binaryninja-api

DWARF data variable type overruns into other data variables

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@emesare is already working on this.

Since Mar 25, 2025.

DebugInfo: DWARF Impact: Medium
Dominant language
C++
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Description

File ID: eager cloud writes brightly

This hilariously large structure in the data section was created by dwarf and it overlaps with all of the RTTI information, the console shows that the RTTI symbol exists but as you can see, not displayed, in place is some gigantic structure created by dwarf.

Image
>>> current_data_var
<var 0x56d974: struct { unsigned int table; unsigned int mnem_flag; unsigned int notes; unsigned int dest_flag; unsigned int src_flag; unsigned int aux_flag; unsigned int cpu; char mnemonic[0x10]; char mnemonic_att[0x10]; int dest; int src; int aux; unsigned int flags_effected; unsigned int implicit_ops; }[0x82]>
>>> current_data_var.type
<type: immutable:ArrayTypeClass 'struct { unsigned int table; unsigned int mnem_flag; unsigned int notes; unsigned int dest_flag; unsigned int src_flag; unsigned int aux_flag; unsigned int cpu; char mnemonic[0x10]; char mnemonic_att[0x10]; int dest; int src; int aux; unsigned int flags_effected; unsigned int implicit_ops; }[0x82]'>
>>> current_data_var.type.width
10400
>>> current_symbol
<DataSymbol: "_typeinfo_for_St12out_of_range" @ 0x56cdc0>

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