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List:       linux-kernel
Subject:    compat_sys_times() bogus until jiffies >= 0.
From:       David Brown <lkml () davidb ! org>
Date:       2007-11-07 22:47:22
Message-ID: 20071107224722.GA20204 () old ! davidb ! org
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compat_sys_times() has bogus return until jiffies is >= 0.  I discovered
this running LTP within 5 minutes of booting.

The return result

	return compat_jiffies_to_clock_t(jiffies);

will return '-1' to user space and set the negated clock_t value to errno.

I'm not sure what the correct fix for this is.  I can come up with a patch
if anyone has ideas on how to fix it.

At minimum, perhaps it should return a sane errno value.

Thanks,
David Brown
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