linux-kernel - Re: [PATCH 30/47] staging/lustre/mdc: fix issue found by Klocwork Insight tool

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Message-ID: <20140429102017.GA26890@mwanda>
Date:	Tue, 29 Apr 2014 13:20:17 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Oleg Drokin <green@...uxhacker.ru>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	Oleg Drokin <oleg.drokin@...el.com>,
	Dmitry Eremin <dmitry.eremin@...el.com>
Subject: Re: [PATCH 30/47] staging/lustre/mdc: fix issue found by Klocwork
 Insight tool

On Sun, Apr 27, 2014 at 01:06:54PM -0400, Oleg Drokin wrote:
> From: Dmitry Eremin <dmitry.eremin@...el.com>
> 
> Pointer 'mod' checked for NULL at line 160 may be dereferenced at line 208.
> 

This seems to be a real bug, btw.  For example, FSFILT_IOC_SETFLAGS
calls md_setattr() with a NULL mod in ll_iocontrol().

regards,
dan carpenter

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