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[Bug binutils/21344] readelf: another heap-based buffer overflow in byte

From: cvs-commit at gcc dot gnu.org
Subject: [Bug binutils/21344] readelf: another heap-based buffer overflow in byte_get_little_endian (elfcomm.c)
Date: Tue, 25 Apr 2017 20:14:30 +0000


--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by Maciej W. Rozycki <address@hidden>:


commit c4ab9505b53cdc899506ed421fddb7e1f8faf7a3
Author: Maciej W. Rozycki <address@hidden>
Date:   Wed Apr 12 00:03:41 2017 +0100

    MIPS/readelf: Simplify GOT[1] data availability check

    Unavailable data is handled gracefully in MIPS GOT processing done by
    `print_mips_got_entry', so all that is needed in special GOT[1] handling
    is to verify whether data can be retrieved for the purpose of the GNU
    marker check done with `byte_get'.  Remove the extra error reporting
    code then, introduced with commit 75ec1fdbb797 ("Fix runtime seg-fault
    in readelf when parsing a corrupt MIPS binary.") in the course of
    addressing PR binutils/21344, and defer the error case to regular local
    GOT entry processing.

        * readelf.c (process_mips_specific): Remove error reporting from
        GOT[1] processing.

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