check file size

2020-08-23 15:31:10 +03:00
parent 894aa48906
commit 14e187f1e2
1 changed files with 6 additions and 0 deletions
--- 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) {