[patch] RTC_ALM_SET ioctl secured
From: Lukasz Stelmach
Date: Mon Feb 13 2006 - 20:35:49 EST
Greetings.
In 2.6.15 every Joe User can set up alarm on RTC chip with RTC_ALM_SET. IMHO
there should be a check agains CAP_SYS_TIME before it is done.
PS, please CC, I'm not a subscriber.
--
ByÅo mi bardzo miÅo. Czwarta pospolita klÄska, [...]
>Åukasz< JuÅ nie katolicka lecz zÅodziejska. (c)PP
-------------------------------------------------------------------
Fotoerotica! >>> http://link.interia.pl/f1904
--- rtc.c~ 2006-02-14 02:31:51.000000000 +0100
+++ rtc.c 2006-02-14 02:32:48.000000000 +0100
@@ -478,6 +478,9 @@
unsigned char hrs, min, sec;
struct rtc_time alm_tm;
+ if (!capable(CAP_SYS_TIME))
+ return -EACCES;
+
if (copy_from_user(&alm_tm, (struct rtc_time __user *)arg,
sizeof(struct rtc_time)))
return -EFAULT;
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