linux-kernel - Re: [BUG] 3ce1217d6cd5 ima patch causes s390 to crash on boot

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Message-ID: <1385138424.11733.34.camel@dhcp-9-2-203-236.watson.ibm.com>
Date:	Fri, 22 Nov 2013 11:40:24 -0500
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	Heiko Carstens <heiko.carstens@...ibm.com>
Cc:	Roberto Sassu <roberto.sassu@...ito.it>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [BUG] 3ce1217d6cd5 ima patch causes s390 to crash on boot

On Fri, 2013-11-22 at 17:35 +0100, Heiko Carstens wrote:
> On Fri, Nov 22, 2013 at 05:23:49PM +0100, Roberto Sassu wrote:
> > Another problem that I found is that strsep()
> > modifies the source buffer by replacing the separator
> > character with '\0'. In particular, this function
> > modifies static data initialized at the beginning
> > of the ima_template.c file. Maybe, this is causing
> > the kernel panic. I already sent a patch to fix this
> > problem (attached to the email) even if it is not
> > supposed to land on the 3.13 kernel. Let me know
> > if this fixes the issue. Otherwise, I will check
> > the code more in depth.
> 
> With your patch below applied the kernel boots again.
> So it should go into 3.13 (or a different fix).
> 
> Thanks!

Thanks for testing!  There are a number of bug fixes for this release in
linux-integrity/ima-fixes-new.  Now that the security patches made it
into Linus' tree, I'll send the pull request to James.

thanks,

Mimi

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