Commit 23d8f5b6 authored by Al Viro's avatar Al Viro
Browse files

make dump_common_audit_data() safe to be called from RCU pathwalk 



Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent bca585d2

security/lsm_audit.c

+3 −2
Original line number Diff line number Diff line
@@ -291,18 +291,19 @@ static void dump_common_audit_data(struct audit_buffer *ab, 
		struct dentry *dentry;

		struct inode *inode;



		rcu_read_lock();

		inode = a->u.inode;

		dentry = d_find_alias(inode);

		dentry = d_find_alias_rcu(inode);

		if (dentry) {

			audit_log_format(ab, " name=");

			spin_lock(&dentry->d_lock);

			audit_log_untrustedstring(ab, dentry->d_name.name);

			spin_unlock(&dentry->d_lock);

			dput(dentry);

		}

		audit_log_format(ab, " dev=");

		audit_log_untrustedstring(ab, inode->i_sb->s_id);

		audit_log_format(ab, " ino=%lu", inode->i_ino);

		rcu_read_unlock();

		break;

	}

	case LSM_AUDIT_DATA_TASK: {