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From: "siddhesh at gotplt dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug demangler/88783] integer overflow in libiberty, heap overflow
 will be triggered in nm
Date: Wed, 24 Feb 2021 04:30:31 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D88783

Siddhesh Poyarekar <siddhesh at gotplt dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |siddhesh at gotplt dot org

--- Comment #9 from Siddhesh Poyarekar <siddhesh at gotplt dot org> ---
gcc version of libiberty hasn't had this issue since the following change w=
hich
removed the potential overflow.  The POC also appears fixed with binutils 2=
.35;
from code inspection it should be fixed in 2.32 and later.  This ought to be
closed.

ommit 6c8120c5ff130e03d32ff15a8f0d0e703592a2af
Author: Jason Merrill <jason@redhat.com>
Date:   Sat Dec 22 19:06:34 2018 -0500

    Remove support for demangling GCC 2.x era mangling schemes.

    libiberty/
            * cplus-dem.c: Remove cplus_mangle_opname, cplus_demangle_opnam=
e,
            internal_cplus_demangle, and all subroutines.
            (libiberty_demanglers): Remove entries for ancient GNU (pre-3.0=
),
            Lucid, ARM, HP, and EDG demangling styles.
            (cplus_demangle): Remove 'work' variable.  Don't call
            internal_cplus_demangle.
    include/
            * demangle.h: Remove support for ancient GNU (pre-3.0), Lucid,
            ARM, HP, and EDG demangling styles.

    From-SVN: r267363=