diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 0b18d2c..8a8e938 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -224,7 +224,7 @@
 		sb->s_flags |= MS_RDONLY;
 	}
 	va_start (args, fmt);
-	vsprintf (error_buf, fmt, args);
+	vsnprintf (error_buf, sizeof(error_buf), fmt, args);
 	va_end (args);
 	switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) {
 	case UFS_MOUNT_ONERROR_PANIC:
@@ -255,7 +255,7 @@
 		sb->s_dirt = 1;
 	}
 	va_start (args, fmt);
-	vsprintf (error_buf, fmt, args);
+	vsnprintf (error_buf, sizeof(error_buf), fmt, args);
 	va_end (args);
 	sb->s_flags |= MS_RDONLY;
 	printk (KERN_CRIT "UFS-fs panic (device %s): %s: %s\n",
@@ -268,7 +268,7 @@
 	va_list args;
 
 	va_start (args, fmt);
-	vsprintf (error_buf, fmt, args);
+	vsnprintf (error_buf, sizeof(error_buf), fmt, args);
 	va_end (args);
 	printk (KERN_WARNING "UFS-fs warning (device %s): %s: %s\n",
 		sb->s_id, function, error_buf);