Re: [PATCH] [v2] net/mlx5e: fix a potential double-free in fs_any_create_groups

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On Tue, Nov 28, 2023 at 05:29:01PM +0800, Dinghao Liu wrote:
> When kcalloc() for ft->g succeeds but kvzalloc() for in fails,
> fs_any_create_groups() will free ft->g. However, its caller
> fs_any_create_table() will free ft->g again through calling
> mlx5e_destroy_flow_table(), which will lead to a double-free.
> Fix this by setting ft->g to NULL in fs_any_create_groups().
> 
> Fixes: 0f575c20bf06 ("net/mlx5e: Introduce Flow Steering ANY API")
> Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
> ---
> 
> Changelog:
> 
> v2: Setting ft->g to NULL instead of removing the kfree().

Reviewed-by: Simon Horman <horms@xxxxxxxxxx>





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