Date: Thu, 30 Mar 2017 15:37:12 +0200
From: Pavel Machek <pavel@ucw.cz>
To: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Maninder Singh <maninder1.s@samsung.com>, jeyu@redhat.com,
        rusty@rustcorp.com.au, akpm@linux-foundation.org,
        chris@chris-wilson.co.uk, joonas.lahtinen@linux.intel.com,
        mhocko@suse.com, keescook@chromium.org, jinb.park7@gmail.com,
        anisse@astier.eu, rafael.j.wysocki@intel.com, zijun_hu@htc.com,
        mingo@kernel.org, mawilcox@microsoft.com, thgarnie@google.com,
        joelaf@google.com, kirill.shutemov@linux.intel.com, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org, pankaj.m@samsung.com,
        ajeet.y@samsung.com, hakbong5.lee@samsung.com, a.sahrawat@samsung.com,
        lalit.mohan@samsung.com, cpgs@samsung.com,
        Vaneet Narang <v.narang@samsung.com>
Subject: Re: [PATCH v2] module: check if memory leak by module.
Message-ID: <20170330133712.GA23946@amd>
References: <CGME20170329060315epcas5p1c6f7ce3aca1b2770c5e1d9aaeb1a27e1@epcas5p1.samsung.com>
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=20
>  3) This might produce false positives. E.g. module may defer vfree() in =
workqueue, so the=20
>      actual vfree() call happens after module unloaded.

Umm. Really?

I agree that module may alloc memory and pass it to someone else. Ok
so far.

But if module code executes after module is unloaded -- that is use
after free -- right?
									Pavel
--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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