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.

1 files changed, 8 insertions, 0 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 76e382e..9443507 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,11 @@
+2014-12-11  Keith Seitz  <keiths@redhat.com>
+
+	* elf.c (elf_parse_notes): Define convenience macro
+	GROKER_ELEMENT to add elements to 'grokers' array.
+	Add 'len' element to 'grokers'.
+	Use grokers.len instead of sizeof in string
+	comparisons.
+
 2014-12-10  Alan Modra  <amodra@gmail.com>
 
 	* Makefile.am (BFD32_LIBS, BFD32_LIBS_CFILES): Remove dwarf2