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@xxxxxxxxxxxxxxx> know about it. >From d89e426499cf36b96161bd32970d6783f1fbcb0e Mon Sep 17 00:00:00 2001 From: Simon Ser <contact@xxxxxxxxxxx> Date: Sat, 30 Dec 2017 14:43:31 -0600 Subject: objtool: Fix seg fault caused by missing parameter From: Simon Ser <contact@xxxxxxxxxxx> commit d89e426499cf36b96161bd32970d6783f1fbcb0e upstream. Fix a seg fault when no parameter is provided to 'objtool orc'. Signed-off-by: Simon Ser <contact@xxxxxxxxxxx> Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/9172803ec7ebb72535bcd0b7f966ae96d515968e.1514666459.git.jpoimboe@xxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Guenter Roeck <linux@xxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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@xxxxxxxxxxx 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