--- /dev/null
+From 3a129cc2151425e5aeb69aeb25fbc994ec738137 Mon Sep 17 00:00:00 2001
+From: Adam Borowski <kilobyte@angband.pl>
+Date: Sun, 4 Feb 2018 18:45:21 +0100
+Subject: vsprintf: avoid misleading "(null)" for %px
+
+From: Adam Borowski <kilobyte@angband.pl>
+
+commit 3a129cc2151425e5aeb69aeb25fbc994ec738137 upstream.
+
+Like %pK already does, print "00000000" instead.
+
+This confused people -- the convention is that "(null)" means you tried to
+dereference a null pointer as opposed to printing the address.
+
+Link: http://lkml.kernel.org/r/20180204174521.21383-1-kilobyte@angband.pl
+To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
+To: Steven Rostedt <rostedt@goodmis.org>
+To: linux-kernel@vger.kernel.org
+Cc: Andrew Morton <akpm@linux-foundation.org>
+Cc: Joe Perches <joe@perches.com>
+Cc: Kees Cook <keescook@chromium.org>
+Cc: "Roberts, William C" <william.c.roberts@intel.com>
+Cc: Linus Torvalds <torvalds@linux-foundation.org>
+Cc: David Laight <David.Laight@ACULAB.COM>
+Cc: Randy Dunlap <rdunlap@infradead.org>
+Cc: Geert Uytterhoeven <geert@linux-m68k.org>
+Signed-off-by: Adam Borowski <kilobyte@angband.pl>
+Signed-off-by: Petr Mladek <pmladek@suse.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ lib/vsprintf.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/lib/vsprintf.c
++++ b/lib/vsprintf.c
+@@ -1849,7 +1849,7 @@ char *pointer(const char *fmt, char *buf
+ {
+ const int default_width = 2 * sizeof(void *);
+
+- if (!ptr && *fmt != 'K') {
++ if (!ptr && *fmt != 'K' && *fmt != 'x') {
+ /*
+ * Print (null) with the same width as a pointer so it makes
+ * tabular output look nice.