netdev - Re: [PATCH v2] net: fealnx: fix possible 'card

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Message-ID: <20251213002129.GA790186@electric-eye.fr.zoreil.com>
Date: Sat, 13 Dec 2025 01:21:29 +0100
From: Francois Romieu <romieu@...zoreil.com>
To: David Laight <david.laight.linux@...il.com>
Cc: Simon Horman <horms@...nel.org>, Ilya Krutskih <devsec@....ru>,
        Andrew Lunn <andrew+netdev@...n.ch>, oe-kbuild-all@...ts.linux.dev,
        Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, lvc-project@...uxtesting.org,
        stable@...r.kernel.org
Subject: Re: [PATCH v2] net: fealnx: fix possible 'card_idx' integer overflow
 in

David Laight <david.laight.linux@...il.com> :
[...]
> And I just don't understand the assignment: option = dev->mem_start;

One can overload the driver 'option' settings through the kernel 'ether'
option which was typically used in the pre-PCI ISA era for non-modular
kernels.

-- 
Ueimor