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From: Simon Horman <horms@kernel.org>
To: Aleksandr Mishin <amishin@t-argos.ru>
Cc: lvc-project@linuxtesting.org, Eric Dumazet <edumazet@google.com>,
	intel-wired-lan@lists.osuosl.org, linux-kernel@vger.kernel.org,
	Przemek Kitszel <przemyslaw.kitszel@intel.com>,
	Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	netdev@vger.kernel.org, Jakub Kicinski <kuba@kernel.org>,
	Paolo Abeni <pabeni@redhat.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: Re: [Intel-wired-lan] [PATCH net-next v4] ice: Adjust over allocation of memory in ice_sched_add_root_node() and ice_sched_add_node()
Date: Thu, 11 Jul 2024 09:48:56 +0100	[thread overview]
Message-ID: <20240711084856.GB8788@kernel.org> (raw)
In-Reply-To: <20240710123949.9265-1-amishin@t-argos.ru>

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@intel.com>
> Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
> ---
> v4:
>   - Remove Suggested-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
>   - Add Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.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@kernel.org>

WARNING: multiple messages have this Message-ID (diff)
From: Simon Horman <horms@kernel.org>
To: Aleksandr Mishin <amishin@t-argos.ru>
Cc: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>,
	Jesse Brandeburg <jesse.brandeburg@intel.com>,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, lvc-project@linuxtesting.org,
	Przemek Kitszel <przemyslaw.kitszel@intel.com>
Subject: Re: [PATCH net-next v4] ice: Adjust over allocation of memory in ice_sched_add_root_node() and ice_sched_add_node()
Date: Thu, 11 Jul 2024 09:48:56 +0100	[thread overview]
Message-ID: <20240711084856.GB8788@kernel.org> (raw)
In-Reply-To: <20240710123949.9265-1-amishin@t-argos.ru>

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@intel.com>
> Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
> ---
> v4:
>   - Remove Suggested-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
>   - Add Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.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@kernel.org>

  reply	other threads:[~2024-07-11  8:49 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-10 12:39 [Intel-wired-lan] [PATCH net-next v4] ice: Adjust over allocation of memory in ice_sched_add_root_node() and ice_sched_add_node() Aleksandr Mishin
2024-07-10 12:39 ` Aleksandr Mishin
2024-07-11  8:48 ` Simon Horman [this message]
2024-07-11  8:48   ` Simon Horman
2024-07-20  8:01 ` [Intel-wired-lan] " Pucha, HimasekharX Reddy
2024-07-20  8:01   ` Pucha, HimasekharX Reddy

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