[Bug demangler/84668] New: c++filt: out of memory allocating 18446744071696285694 bytes after a total of 135168 bytes

[vegard.nossum at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84668

            Bug ID: 84668
           Summary: c++filt: out of memory allocating 18446744071696285694
                    bytes after a total of 135168 bytes
           Product: gcc
           Version: 8.0.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: demangler
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vegard.nossum at gmail dot com
  Target Milestone: ---

$ c++filt '______H5z5555555555_____H5z55555555555555555555555'

c++filt: out of memory allocating 18446744071696285694 bytes after a total of
135168 bytes

$ xgcc --version
xgcc (GCC) 8.0.1 20180301 (experimental)

Built from git c435a9e730c6e8f10da09d58b4fc9aaeb401b0d5 (r258097).

Found by AFL.