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[Bug binutils/21139] readelf crashes - corrupted double-linked list beca

From: cvs-commit at gcc dot gnu.org
Subject: [Bug binutils/21139] readelf crashes - corrupted double-linked list because of use after free
Date: Mon, 13 Feb 2017 14:04:57 +0000


--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by Nick Clifton <address@hidden>:


commit f84ce13b6708801ca1d6289b7c4003e2f5a6d7f9
Author: Nick Clifton <address@hidden>
Date:   Mon Feb 13 14:03:22 2017 +0000

    Fix read-after-free error in readelf when processing multiple, relocated
sections in an MSP430 binary.

        PR binutils/21139
        * readelf.c (target_specific_reloc_handling): Add num_syms
        parameter.  Check for symbol table overflow before accessing
        symbol value.  If reloc pointer is NULL, discard all saved state.
        (apply_relocations): Pass num_syms to target_specific_reloc_handling.
        Call target_specific_reloc_handling with a NULL reloc pointer
        after processing all of the relocs.

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