[patch] RTC_ALM_SET ioctl secured

[patch] RTC_ALM_SET ioctl secured

[Lukasz Stelmach]

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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.
-- 
Było mi bardzo miło.                    Czwarta pospolita klęska, [...]
>Łukasz<                      Już nie katolicka lecz złodziejska.  (c)PP



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--- 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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