[Bug 56932] New: Null pointer dereference in MiniDumpWriteDump

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56932

Bug ID: 56932
           Summary: Null pointer dereference in MiniDumpWriteDump
           Product: Wine
           Version: 9.1
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: dbghelp
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 76754
  --> https://bugs.winehq.org/attachment.cgi?id=76754
Program Error details

When using sdlprocdump [1] to get a minidump and stackframe of a crashing
program,
wine segfaults inside DbgHelp.MiniDumpWriteDump.

I've attached the error when running the following crashing programming under
sdlprocdump.exe.
```
int main(int argc, char *argv[]) {
 return argc / (argc - 1);
}
```

sdlprocdump usage:

```
wine sdlprocdump.exe a.exe
```

[1] https://github.com/libsdl-org/SDL/blob/main/test/win32/sdlprocdump.c