linux-kernel - [PATCH 4.16 137/196] trace_uprobe: Use %lx to display offset

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Date:   Sun, 22 Apr 2018 15:52:37 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Masami Hiramatsu <mhiramat@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>,
        "Steven Rostedt (VMware)" <rostedt@...dmis.org>
Subject: [PATCH 4.16 137/196] trace_uprobe: Use %lx to display offset

4.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>

commit 18d45b11d96e6f9b3814960a1394083a3d6b7f74 upstream.

tu->offset is unsigned long, not a pointer, thus %lx should
be used to print it, not the %px.

Link: http://lkml.kernel.org/r/20180315082756.9050-1-ravi.bangoria@linux.vnet.ibm.com

Cc: stable@...r.kernel.org
Acked-by: Masami Hiramatsu <mhiramat@...nel.org>
Fixes: 0e4d819d0893 ("trace_uprobe: Display correct offset in uprobe_events")
Suggested-by: Kees Cook <keescook@...omium.org>
Signed-off-by: Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 kernel/trace/trace_uprobe.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -608,7 +608,7 @@ static int probes_seq_show(struct seq_fi
 
 	/* Don't print "0x  (null)" when offset is 0 */
 	if (tu->offset) {
-		seq_printf(m, "0x%px", (void *)tu->offset);
+		seq_printf(m, "0x%0*lx", (int)(sizeof(void *) * 2), tu->offset);
 	} else {
 		switch (sizeof(void *)) {
 		case 4: