From 14e187f1e2c358c46ccb22963794aa91feccbf41 Mon Sep 17 00:00:00 2001
From: illiliti <illiliti@protonmail.com>
Date: Sun, 23 Aug 2020 15:31:10 +0300
Subject: [PATCH] check file size

---
 udev_device.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/udev_device.c b/udev_device.c
index f312810..e8b0c9b 100644
--- a/udev_device.c
+++ b/udev_device.c
@@ -560,6 +560,7 @@ struct udev_device *udev_device_new_from_file(struct udev *udev, const char *pat
     char line[LINE_MAX], syspath[PATH_MAX], devnode[PATH_MAX];
     struct udev_device *udev_device;
     char *pos, *sysname;
+    struct stat st;
     FILE *file;
     int i;
 
@@ -569,6 +570,11 @@ struct udev_device *udev_device_new_from_file(struct udev *udev, const char *pat
         return NULL;
     }
 
+    if (stat(path, &st) != 0 || st.st_size > 8192) {
+        free(udev_device);
+        return NULL;
+    }
+
     file = fopen(path, "r");
 
     if (!file) {