linux-kernel - Re: x86, x32: Correct invalid use of user timespec in the kernel

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Message-ID: <20140131175009.GA27231@redhat.com>
Date:	Fri, 31 Jan 2014 12:50:09 -0500
From:	Dave Jones <davej@...hat.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>, hpa@...ux.intel.com
Subject: Re: x86, x32: Correct invalid use of user timespec in the kernel

On Fri, Jan 31, 2014 at 02:54:53AM +0000, Linux Kernel wrote:

 > Commit:     2def2ef2ae5f3990aabdbe8a755911902707d268
 > 
 > ...
 >  
 > -	if (get_compat_timespec(&ktspec, timeout))
 > +	if (compat_get_timespec(&ktspec, timeout))
 >  		return -EFAULT;
 >  
 >  	datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
 >  				   flags | MSG_CMSG_COMPAT, &ktspec);
 > -	if (datagrams > 0 && put_compat_timespec(&ktspec, timeout))
 > +	if (datagrams > 0 && compat_put_timespec(&ktspec, timeout))
 >  		datagrams = -EFAULT;
 >  

Can we rename one of each of those functions ?
It's not really surprising they got mixed up given they look so alike.

It looks like an accident just waiting to happen again.

	Dave

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