netdev - RE: [Intel-wired-lan] [PATCH net-next 1/2] igb: Fix an end of loop test

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Date: Mon, 16 Oct 2023 10:25:05 +0000
From: "Romanowski, Rafal" <rafal.romanowski@...el.com>
To: "Brandeburg, Jesse" <jesse.brandeburg@...el.com>, Dan Carpenter
	<dan.carpenter@...aro.org>, Jinjie Ruan <ruanjinjie@...wei.com>
CC: "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>, "Eric
 Dumazet" <edumazet@...gle.com>, "Nguyen, Anthony L"
	<anthony.l.nguyen@...el.com>, Simon Horman <horms@...nel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>, "Keller, Jacob E"
	<jacob.e.keller@...el.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
	<pabeni@...hat.com>, "David S. Miller" <davem@...emloft.net>
Subject: RE: [Intel-wired-lan] [PATCH net-next 1/2] igb: Fix an end of loop
 test

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of
> Jesse Brandeburg
> Sent: Monday, October 9, 2023 5:18 PM
> To: Dan Carpenter <dan.carpenter@...aro.org>; Jinjie Ruan
> <ruanjinjie@...wei.com>
> Cc: intel-wired-lan@...ts.osuosl.org; kernel-janitors@...r.kernel.org; Eric
> Dumazet <edumazet@...gle.com>; Nguyen, Anthony L
> <anthony.l.nguyen@...el.com>; Simon Horman <horms@...nel.org>;
> netdev@...r.kernel.org; Keller, Jacob E <jacob.e.keller@...el.com>; Jakub
> Kicinski <kuba@...nel.org>; Paolo Abeni <pabeni@...hat.com>; David S.
> Miller <davem@...emloft.net>
> Subject: Re: [Intel-wired-lan] [PATCH net-next 1/2] igb: Fix an end of loop test
> 
> On 10/5/2023 6:57 AM, Dan Carpenter wrote:
> > When we exit a list_for_each_entry() without hitting a break
> > statement, the list iterator isn't NULL, it just point to an offset
> > off the list_head.  In that situation, it wouldn't be too surprising
> > for
> > entry->free to be true and we end up corrupting memory.
> >
> > The way to test for these is to just set a flag.
> >
> > Fixes: c1fec890458a ("ethernet/intel: Use list_for_each_entry()
> > helper")
> > Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
> 
> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
> 
> 
> _______________________________________________
> Intel-wired-lan mailing list
> Intel-wired-lan@...osl.org
> https://lists.osuosl.org/mailman/listinfo/intel-wired-lan


Tested-by: Rafal Romanowski <rafal.romanowski@...el.com>

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