linux-kernel - [PATCH 4.15 33/45] binder: replace "%p" with "%pK"

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Message-Id: <20180223170720.624113327@linuxfoundation.org>
Date:   Fri, 23 Feb 2018 19:29:12 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Todd Kjos <tkjos@...gle.com>
Subject: [PATCH 4.15 33/45] binder: replace "%p" with "%pK"

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

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

From: Todd Kjos <tkjos@...roid.com>

commit 8ca86f1639ec5890d400fff9211aca22d0a392eb upstream.

The format specifier "%p" can leak kernel addresses. Use
"%pK" instead. There were 4 remaining cases in binder.c.

Signed-off-by: Todd Kjos <tkjos@...gle.com>
Cc: stable <stable@...r.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/android/binder.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2141,7 +2141,7 @@ static void binder_transaction_buffer_re
 	int debug_id = buffer->debug_id;
 
 	binder_debug(BINDER_DEBUG_TRANSACTION,
-		     "%d buffer release %d, size %zd-%zd, failed at %p\n",
+		     "%d buffer release %d, size %zd-%zd, failed at %pK\n",
 		     proc->pid, buffer->debug_id,
 		     buffer->data_size, buffer->offsets_size, failed_at);
 
@@ -3653,7 +3653,7 @@ static int binder_thread_write(struct bi
 				}
 			}
 			binder_debug(BINDER_DEBUG_DEAD_BINDER,
-				     "%d:%d BC_DEAD_BINDER_DONE %016llx found %p\n",
+				     "%d:%d BC_DEAD_BINDER_DONE %016llx found %pK\n",
 				     proc->pid, thread->pid, (u64)cookie,
 				     death);
 			if (death == NULL) {
@@ -4991,7 +4991,7 @@ static void print_binder_transaction_ilo
 	spin_lock(&t->lock);
 	to_proc = t->to_proc;
 	seq_printf(m,
-		   "%s %d: %p from %d:%d to %d:%d code %x flags %x pri %ld r%d",
+		   "%s %d: %pK from %d:%d to %d:%d code %x flags %x pri %ld r%d",
 		   prefix, t->debug_id, t,
 		   t->from ? t->from->proc->pid : 0,
 		   t->from ? t->from->pid : 0,
@@ -5015,7 +5015,7 @@ static void print_binder_transaction_ilo
 	}
 	if (buffer->target_node)
 		seq_printf(m, " node %d", buffer->target_node->debug_id);
-	seq_printf(m, " size %zd:%zd data %p\n",
+	seq_printf(m, " size %zd:%zd data %pK\n",
 		   buffer->data_size, buffer->offsets_size,
 		   buffer->data);
 }