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Backport upsream commit to fix CVE-2017-8392 CVE: CVE-2017-8392 [BZ 21409] -- https://sourceware.org/bugzilla/show_bug.cgi?id=21409 PR 21409, segfault in _bfd_dwarf2_find_nearest_line PR 21409 * dwarf2.c (_bfd_dwarf2_find_nearest_line): Don't segfault when no symbols. (From OE-Core rev: dff01b827c87ae135a1d5511b1efbdad01c0eaee) Signed-off-by: Fan Xin <fan.xin@jp.fujitsu.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>