binder: replace "%p" with "%pK"
authorTodd Kjos <tkjos@android.com>
Wed, 7 Feb 2018 21:57:37 +0000 (13:57 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 16 Feb 2018 10:16:38 +0000 (11:16 +0100)
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@google.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/android/binder.c

index 31322e9..a85f903 100644 (file)
@@ -2199,7 +2199,7 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
        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);
 
@@ -3711,7 +3711,7 @@ static int binder_thread_write(struct binder_proc *proc,
                                }
                        }
                        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) {
@@ -5042,7 +5042,7 @@ static void print_binder_transaction_ilocked(struct seq_file *m,
        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,
@@ -5066,7 +5066,7 @@ static void print_binder_transaction_ilocked(struct seq_file *m,
        }
        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);
 }