From 97e83a100aa8250be783304bfe0429761c6e6b6b Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Sun, 23 Apr 2017 13:55:49 +0930 Subject: [PATCH] PR 21409, segfault in _bfd_dwarf2_find_nearest_line PR 21409 * dwarf2.c (_bfd_dwarf2_find_nearest_line): Don't segfault when no symbols. CVE: CVE-2017-8392 Upstream-Status: Accepted Signed-off-by: Fan Xin --- bfd/dwarf2.c | 2 +- 1 files changed, 1 insertions(+), 1 deletion(-) diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c index 132a674..0ef3e1f 100644 --- a/bfd/dwarf2.c +++ b/bfd/dwarf2.c @@ -4205,7 +4205,7 @@ _bfd_dwarf2_find_nearest_line (bfd *abfd, looking up the function by section + offset uses the DW_AT_decl_line from the function DW_TAG_subprogram for the line, which will be the line of the function name. */ - if ((section->flags & SEC_CODE) == 0) + if (symbols != NULL && (section->flags & SEC_CODE) == 0) { asymbol **tmp; -- 1.9.1