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

From: Simon Horman
Date: Thu Jul 11 2024 - 04:49:08 EST


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@xxxxxxxxx>
> Signed-off-by: Aleksandr Mishin <amishin@xxxxxxxxxx>
> ---
> v4:
> - Remove Suggested-by: Przemek Kitszel <przemyslaw.kitszel@xxxxxxxxx>
> - Add Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@xxxxxxxxx>
> (https://lore.kernel.org/all/6d8ac0cf-b954-4c12-8b5b-e172c850e529@xxxxxxxxx/)
> v3: https://lore.kernel.org/all/20240708182736.8514-1-amishin@xxxxxxxxxx/
> - Update comment and use the correct entities as suggested by Przemek
> v2: https://lore.kernel.org/all/20240706140518.9214-1-amishin@xxxxxxxxxx/
> - 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@xxxxxxxxxx/)
> v1: https://lore.kernel.org/all/20240705163620.12429-1-amishin@xxxxxxxxxx/

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

Reviewed-by: Simon Horman <horms@xxxxxxxxxx>