+ lib_backtrace-fix-kernel-text-address-leak.patch added to -mm tree

+ lib_backtrace-fix-kernel-text-address-leak.patch added to -mm tree

[akpm]

The patch titled
     Subject: lib/nmi_backtrace.c: fix kernel text address leak
has been added to the -mm tree.  Its filename is
     lib_backtrace-fix-kernel-text-address-leak.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/lib_backtrace-fix-kernel-text-address-leak.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/lib_backtrace-fix-kernel-text-address-leak.patch

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------------------------------------------------------
From: "Liu, Changcheng" <changcheng.liu@intel.com>
Subject: lib/nmi_backtrace.c: fix kernel text address leak

Don't leak idle function address in NMI backtrace.

Link: http://lkml.kernel.org/r/20171106165648.GA95243@sofia
Signed-off-by: Liu Changcheng <changcheng.liu@intel.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/nmi_backtrace.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff -puN lib/nmi_backtrace.c~lib_backtrace-fix-kernel-text-address-leak lib/nmi_backtrace.c
--- a/lib/nmi_backtrace.c~lib_backtrace-fix-kernel-text-address-leak
+++ a/lib/nmi_backtrace.c
@@ -93,8 +93,8 @@ bool nmi_cpu_backtrace(struct pt_regs *r
 	if (cpumask_test_cpu(cpu, to_cpumask(backtrace_mask))) {
 		arch_spin_lock(&lock);
 		if (regs && cpu_in_idle(instruction_pointer(regs))) {
-			pr_warn("NMI backtrace for cpu %d skipped: idling at pc %#lx\n",
-				cpu, instruction_pointer(regs));
+			pr_warn("NMI backtrace for cpu %d skipped: idling at %pS\n",
+				cpu, (void *)instruction_pointer(regs));
 		} else {
 			pr_warn("NMI backtrace for cpu %d\n", cpu);
 			if (regs)
_

Patches currently in -mm which might be from changcheng.liu@intel.com are

lib_backtrace-fix-kernel-text-address-leak.patch