linux-kernel - Re: [PATCH net-next v4] ice: Adjust over allocation of memory in ice_sched_add_root_node() and ice_sched_add

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Message-ID: <20240711084856.GB8788@kernel.org>
Date: Thu, 11 Jul 2024 09:48:56 +0100
From: Simon Horman <horms@...nel.org>
To: Aleksandr Mishin <amishin@...rgos.ru>
Cc: Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Tony Nguyen <anthony.l.nguyen@...el.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, lvc-project@...uxtesting.org,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>
Subject: Re: [PATCH net-next v4] ice: Adjust over allocation of memory in
 ice_sched_add_root_node() and ice_sched_add_node()

On Wed, Jul 10, 2024 at 03:39:49PM +0300, Aleksandr Mishin wrote:
> In ice_sched_add_root_node() and ice_sched_add_node() there are calls to
> devm_kcalloc() in order to allocate memory for array of pointers to
> 'ice_sched_node' structure. But incorrect types are used as sizeof()
> arguments in these calls (structures instead of pointers) which leads to
> over allocation of memory.
> 
> Adjust over allocation of memory by correcting types in devm_kcalloc()
> sizeof() arguments.
> 
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
> 
> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
> Signed-off-by: Aleksandr Mishin <amishin@...rgos.ru>
> ---
> v4:
>   - Remove Suggested-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
>   - Add Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
>     (https://lore.kernel.org/all/6d8ac0cf-b954-4c12-8b5b-e172c850e529@intel.com/)
> v3: https://lore.kernel.org/all/20240708182736.8514-1-amishin@t-argos.ru/
>   - Update comment and use the correct entities as suggested by Przemek
> v2: https://lore.kernel.org/all/20240706140518.9214-1-amishin@t-argos.ru/
>   - Update comment, remove 'Fixes' tag and change the tree from 'net' to
>     'net-next' as suggested by Simon
>     (https://lore.kernel.org/all/20240706095258.GB1481495@kernel.org/)
> v1: https://lore.kernel.org/all/20240705163620.12429-1-amishin@t-argos.ru/

Thanks for your persistence, this version looks good to me.

Reviewed-by: Simon Horman <horms@...nel.org>