gdb and binutils branch master updated. 8acbedd60e1045bf8d37b29ddd25c2c8b6a302a9

[kseitz@sourceware.org]

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=8acbedd60e1045bf8d37b29ddd25c2c8b6a302a9

commit 8acbedd60e1045bf8d37b29ddd25c2c8b6a302a9
Author: Keith Seitz <keiths@redhat.com>
Date:   Thu Dec 11 09:39:24 2014 -0800

    This commit causes hundreds of core file regressions in gdb:
    
    commit f64e188b58f4aab4cbd03aa6e9fc1aa602546e26
    Author: Nick Clifton <nickc@redhat.com>
    Date:   Tue Dec 9 12:42:18 2014 +0000
    
        More fixes for memory access violations triggered by fuzzed binaries.
        [snip]
            * elf.c (elf_parse_notes): Check that the namedata is long enough
            for the string comparison that is about to be performed.
            (elf_read_notes): Zero-terminate the note buffer.
    
    This change to elf_parse_notes is the culprit:
    
    +           for (i = ARRAY_SIZE (grokers); i--;)
    +             if (in.namesz >= sizeof grokers[i].string - 1
    +                 && strncmp (in.namedata, grokers[i].string,
    +                             sizeof (grokers[i].string) - 1) == 0)
    
    Note how this applies sizeof to grokers[i].string...
    
    bfd/ChangeLog
    
            * elf.c (elf_parse_notes): Define convenience macro
            GROKER_ELEMENT to add elements to 'grokers'.
            Use grokers.len instead of sizeof in string comparisons.

-----------------------------------------------------------------------

Summary of changes:
 bfd/ChangeLog |    8 ++++++++
 bfd/elf.c     |   31 ++++++++++++++++++-------------
 2 files changed, 26 insertions(+), 13 deletions(-)


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