Patch "objtool: Fix seg fault caused by missing parameter" has been added to the 4.14-stable tree

Patch "objtool: Fix seg fault caused by missing parameter" has been added to the 4.14-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    objtool: Fix seg fault caused by missing parameter

to the 4.14-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     objtool-fix-seg-fault-caused-by-missing-parameter.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From d89e426499cf36b96161bd32970d6783f1fbcb0e Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Sat, 30 Dec 2017 14:43:31 -0600
Subject: objtool: Fix seg fault caused by missing parameter

From: Simon Ser <contact@emersion.fr>

commit d89e426499cf36b96161bd32970d6783f1fbcb0e upstream.

Fix a seg fault when no parameter is provided to 'objtool orc'.

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/9172803ec7ebb72535bcd0b7f966ae96d515968e.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/builtin-orc.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/tools/objtool/builtin-orc.c
+++ b/tools/objtool/builtin-orc.c
@@ -44,6 +44,9 @@ int cmd_orc(int argc, const char **argv)
 	const char *objname;
 
 	argc--; argv++;
+	if (argc <= 0)
+		usage_with_options(orc_usage, check_options);
+
 	if (!strncmp(argv[0], "gen", 3)) {
 		argc = parse_options(argc, argv, check_options, orc_usage, 0);
 		if (argc != 1)
@@ -52,7 +55,6 @@ int cmd_orc(int argc, const char **argv)
 		objname = argv[0];
 
 		return check(objname, no_fp, no_unreachable, true);
-
 	}
 
 	if (!strcmp(argv[0], "dump")) {


Patches currently in stable-queue which might be from contact@emersion.fr are

queue-4.14/objtool-fix-seg-fault-with-clang-compiled-objects.patch
queue-4.14/objtool-fix-seg-fault-caused-by-missing-parameter.patch