| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 03/89] objtool: Fix seg fault with clang-compiled objects | Date | Mon, 22 Jan 2018 09:44:43 +0100 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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From: Simon Ser <contact@emersion.fr>
commit ce90aaf5cde4ce057b297bb6c955caf16ef00ee6 upstream.
Fix a seg fault which happens when an input file provided to 'objtool orc generate' doesn't have a '.shstrtab' section (for instance, object files produced by clang don't have this section).
Signed-off-by: Simon Ser <contact@emersion.fr> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/c0f2231683e9bed40fac1f13ce2c33b8389854bc.1514666459.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- tools/objtool/orc_gen.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/tools/objtool/orc_gen.c +++ b/tools/objtool/orc_gen.c @@ -165,6 +165,8 @@ int create_orc_sections(struct objtool_f /* create .orc_unwind_ip and .rela.orc_unwind_ip sections */ sec = elf_create_section(file->elf, ".orc_unwind_ip", sizeof(int), idx); + if (!sec) + return -1; ip_relasec = elf_create_rela_section(file->elf, sec); if (!ip_relasec)
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