[Bug 43754] New: In dlls/dbghelp/dwarf.c file, there is a NULL dereference

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=43754

            Bug ID: 43754
           Summary: In dlls/dbghelp/dwarf.c file, there is a NULL
                    dereference
           Product: Wine
           Version: 2.0.2
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: dbghelp
          Assignee: wine-bugs at winehq.org
          Reporter: os at iscas.ac.cn
      Distribution: ---

Created attachment 59249
  --> https://bugs.winehq.org/attachment.cgi?id=59249
In line 447, variable last has a NULL dereference

In the dwarf.c file, the variable last is assigned NULL,there is no other
operation with last, uthil "last->next = new "when the "abbrev_entry->attrs" is
true,
so there is a NULL dereference.

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