[Bug binutils/22170] heap-based buffer overflow in _bfd_x86_elf_get_synthetic_symtab (elfxx-x86.c)

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=22170

--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The binutils-2_29-branch branch has been updated by H.J. Lu
<address@hidden>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=56933f9e3e90eebf1018ed7417d6c1184b91db6b

commit 56933f9e3e90eebf1018ed7417d6c1184b91db6b
Author: H.J. Lu <address@hidden>
Date:   Fri Sep 22 14:15:40 2017 -0700

    x86: Guard against corrupted PLT

    There should be only one entry in PLT for a given symbol.  Set howto to
    NULL after processing a PLT entry to guard against corrupted PLT so that
    the duplicated PLT entries are skipped.

        PR binutils/22170
         * elf32-i386.c (elf_i386_get_synthetic_symtab): Guard against
         corrupted PLT.
         * elf64-x86-64.c (elf_x86_64_get_synthetic_symtab): Likewise.

    (cherry picked from commit 61e3bf5f83f7e505b6bc51ef65426e5b31e6e360)

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