Merge branch 'audit.b62' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current

* 'audit.b62' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:
  Audit: remove spaces from audit_log_d_path
  audit: audit_set_auditable defined but not used
  audit: incorrect ref counting in audit tree tag_chunk
  audit: Fix possible return value truncation in audit_get_context()
  audit: ignore terminating NUL in AUDIT_USER_TTY messages
  Audit: fix handling of 'strings' with NULL characters
  make the e->rule.xxx shorter in kernel auditfilter.c
  auditsc: fix kernel-doc notation
  audit: EXECVE record - removed bogus newline

4 files changed, 32 insertions, 28 deletions

diff --git a/kernel/audit.c b/kernel/audit.c
index ce6d8ea3131..9442c3533ba 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -766,6 +766,9 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 
 				audit_log_format(ab, " msg=");
 				size = nlmsg_len(nlh);
+				if (size > 0 &&
+				    ((unsigned char *)data)[size - 1] == '\0')
+					size--;
 				audit_log_n_untrustedstring(ab, data, size);
 			}
 			audit_set_pid(ab, pid);
@@ -1382,7 +1385,7 @@ void audit_log_n_string(struct audit_buffer *ab, const char *string,
 int audit_string_contains_control(const char *string, size_t len)
 {
 	const unsigned char *p;
-	for (p = string; p < (const unsigned char *)string + len && *p; p++) {
+	for (p = string; p < (const unsigned char *)string + len; p++) {
 		if (*p == '"' || *p < 0x21 || *p > 0x7e)
 			return 1;
 	}
@@ -1437,13 +1440,13 @@ void audit_log_d_path(struct audit_buffer *ab, const char *prefix,
 	/* We will allow 11 spaces for ' (deleted)' to be appended */
 	pathname = kmalloc(PATH_MAX+11, ab->gfp_mask);
 	if (!pathname) {
-		audit_log_format(ab, "<no memory>");
+		audit_log_string(ab, "<no_memory>");
 		return;
 	}
 	p = d_path(path, pathname, PATH_MAX+11);
 	if (IS_ERR(p)) { /* Should never happen since we send PATH_MAX */
 		/* FIXME: can we save some information here? */
-		audit_log_format(ab, "<too long>");
+		audit_log_string(ab, "<too_long>");
 	} else
 		audit_log_untrustedstring(ab, p);
 	kfree(pathname);
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index 8ad9545b8db..917ab952556 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -385,6 +385,7 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree)
 	mutex_lock(&inode->inotify_mutex);
 	if (inotify_clone_watch(&old->watch, &chunk->watch) < 0) {
 		mutex_unlock(&inode->inotify_mutex);
+		put_inotify_watch(&old->watch);
 		free_chunk(chunk);
 		return -ENOSPC;
 	}
@@ -394,6 +395,7 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree)
 		chunk->dead = 1;
 		inotify_evict_watch(&chunk->watch);
 		mutex_unlock(&inode->inotify_mutex);
+		put_inotify_watch(&old->watch);
 		put_inotify_watch(&chunk->watch);
 		return 0;
 	}
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index fbf24d121d9..a6fe71fd5d1 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -135,18 +135,18 @@ static void audit_remove_watch(struct audit_watch *watch)
 static inline void audit_free_rule(struct audit_entry *e)
 {
 	int i;
-
+	struct audit_krule *erule = &e->rule;
 	/* some rules don't have associated watches */
-	if (e->rule.watch)
-		audit_put_watch(e->rule.watch);
-	if (e->rule.fields)
-		for (i = 0; i < e->rule.field_count; i++) {
-			struct audit_field *f = &e->rule.fields[i];
+	if (erule->watch)
+		audit_put_watch(erule->watch);
+	if (erule->fields)
+		for (i = 0; i < erule->field_count; i++) {
+			struct audit_field *f = &erule->fields[i];
 			kfree(f->lsm_str);
 			security_audit_rule_free(f->lsm_rule);
 		}
-	kfree(e->rule.fields);
-	kfree(e->rule.filterkey);
+	kfree(erule->fields);
+	kfree(erule->filterkey);
 	kfree(e);
 }
 
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 2bfc6478676..7d6ac7c1f41 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -329,6 +329,14 @@ static int audit_match_filetype(struct audit_context *ctx, int which)
  */
 
 #ifdef CONFIG_AUDIT_TREE
+static void audit_set_auditable(struct audit_context *ctx)
+{
+	if (!ctx->prio) {
+		ctx->prio = 1;
+		ctx->current_state = AUDIT_RECORD_CONTEXT;
+	}
+}
+
 static int put_tree_ref(struct audit_context *ctx, struct audit_chunk *chunk)
 {
 	struct audit_tree_refs *p = ctx->trees;
@@ -742,17 +750,9 @@ void audit_filter_inodes(struct task_struct *tsk, struct audit_context *ctx)
 	rcu_read_unlock();
 }
 
-static void audit_set_auditable(struct audit_context *ctx)
-{
-	if (!ctx->prio) {
-		ctx->prio = 1;
-		ctx->current_state = AUDIT_RECORD_CONTEXT;
-	}
-}
-
 static inline struct audit_context *audit_get_context(struct task_struct *tsk,
 						      int return_valid,
-						      int return_code)
+						      long return_code)
 {
 	struct audit_context *context = tsk->audit_context;
 
@@ -1024,7 +1024,7 @@ static int audit_log_single_execve_arg(struct audit_context *context,
 {
 	char arg_num_len_buf[12];
 	const char __user *tmp_p = p;
-	/* how many digits are in arg_num? 3 is the length of a=\n */
+	/* how many digits are in arg_num? 3 is the length of " a=" */
 	size_t arg_num_len = snprintf(arg_num_len_buf, 12, "%d", arg_num) + 3;
 	size_t len, len_left, to_send;
 	size_t max_execve_audit_len = MAX_EXECVE_AUDIT_LEN;
@@ -1110,7 +1110,7 @@ static int audit_log_single_execve_arg(struct audit_context *context,
 		 * so we can be sure nothing was lost.
 		 */
 		if ((i == 0) && (too_long))
-			audit_log_format(*ab, "a%d_len=%zu ", arg_num,
+			audit_log_format(*ab, " a%d_len=%zu", arg_num,
 					 has_cntl ? 2*len : len);
 
 		/*
@@ -1130,7 +1130,7 @@ static int audit_log_single_execve_arg(struct audit_context *context,
 		buf[to_send] = '\0';
 
 		/* actually log it */
-		audit_log_format(*ab, "a%d", arg_num);
+		audit_log_format(*ab, " a%d", arg_num);
 		if (too_long)
 			audit_log_format(*ab, "[%d]", i);
 		audit_log_format(*ab, "=");
@@ -1138,7 +1138,6 @@ static int audit_log_single_execve_arg(struct audit_context *context,
 			audit_log_n_hex(*ab, buf, to_send);
 		else
 			audit_log_format(*ab, "\"%s\"", buf);
-		audit_log_format(*ab, "\n");
 
 		p += to_send;
 		len_left -= to_send;
@@ -1166,7 +1165,7 @@ static void audit_log_execve_info(struct audit_context *context,
 
 	p = (const char __user *)axi->mm->arg_start;
 
-	audit_log_format(*ab, "argc=%d ", axi->argc);
+	audit_log_format(*ab, "argc=%d", axi->argc);
 
 	/*
 	 * we need some kernel buffer to hold the userspace args.  Just
@@ -1479,7 +1478,7 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts
 			case 0:
 				/* name was specified as a relative path and the
 				 * directory component is the cwd */
-				audit_log_d_path(ab, " name=", &context->pwd);
+				audit_log_d_path(ab, "name=", &context->pwd);
 				break;
 			default:
 				/* log the name's directory component */
@@ -2150,7 +2149,7 @@ int audit_set_loginuid(struct task_struct *task, uid_t loginuid)
  * __audit_mq_open - record audit data for a POSIX MQ open
  * @oflag: open flag
  * @mode: mode bits
- * @u_attr: queue attributes
+ * @attr: queue attributes
  *
  */
 void __audit_mq_open(int oflag, mode_t mode, struct mq_attr *attr)
@@ -2197,7 +2196,7 @@ void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio,
 /**
  * __audit_mq_notify - record audit data for a POSIX MQ notify
  * @mqdes: MQ descriptor
- * @u_notification: Notification event
+ * @notification: Notification event
  *
  */