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USB: misc: usbsevseg: fix up some sysfs attribute permissions

They should not be writable by any user.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Harrison Metzger <harrisonmetz@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman 14 tahun lalu
induk
melakukan
e24d7ace4e
1 mengubah file dengan 4 tambahan dan 6 penghapusan
  1. 4 6
      drivers/usb/misc/usbsevseg.c

+ 4 - 6
drivers/usb/misc/usbsevseg.c

@@ -192,7 +192,7 @@ static ssize_t set_attr_##name(struct device *dev, 		\
 								\
 	return count;						\
 }								\
-static DEVICE_ATTR(name, S_IWUGO | S_IRUGO, show_attr_##name, set_attr_##name);
+static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_attr_##name, set_attr_##name);
 
 static ssize_t show_attr_text(struct device *dev,
 	struct device_attribute *attr, char *buf)
@@ -223,7 +223,7 @@ static ssize_t set_attr_text(struct device *dev,
 	return count;
 }
 
-static DEVICE_ATTR(text, S_IWUGO | S_IRUGO, show_attr_text, set_attr_text);
+static DEVICE_ATTR(text, S_IRUGO | S_IWUSR, show_attr_text, set_attr_text);
 
 static ssize_t show_attr_decimals(struct device *dev,
 	struct device_attribute *attr, char *buf)
@@ -272,8 +272,7 @@ static ssize_t set_attr_decimals(struct device *dev,
 	return count;
 }
 
-static DEVICE_ATTR(decimals, S_IWUGO | S_IRUGO,
-	show_attr_decimals, set_attr_decimals);
+static DEVICE_ATTR(decimals, S_IRUGO | S_IWUSR, show_attr_decimals, set_attr_decimals);
 
 static ssize_t show_attr_textmode(struct device *dev,
 	struct device_attribute *attr, char *buf)
@@ -319,8 +318,7 @@ static ssize_t set_attr_textmode(struct device *dev,
 	return -EINVAL;
 }
 
-static DEVICE_ATTR(textmode, S_IWUGO | S_IRUGO,
-	show_attr_textmode, set_attr_textmode);
+static DEVICE_ATTR(textmode, S_IRUGO | S_IWUSR, show_attr_textmode, set_attr_textmode);
 
 
 MYDEV_ATTR_SIMPLE_UNSIGNED(powered, update_display_powered);