Re: [PATCH v2 net] sfc: fix potential memory leak in efx_mae_process_mport()

[Jacob Keller]

On 10/24/2025 7:48 AM, Edward Cree wrote:
> On 24/10/2025 01:48, Jacob Keller wrote:
>> On 10/23/2025 7:18 AM, Abdun Nihaal wrote:
>>> In efx_mae_enumerate_mports(), memory allocated for mae_mport_desc is
>>> passed as a argument to efx_mae_process_mport(), but when the error path
>>> in efx_mae_process_mport() gets executed, the memory allocated for desc
>>> gets leaked.
>>>
>>> Fix that by freeing the memory allocation before returning error.
>>
>> Why not make the caller responsible for freeing desc on failure?
> 
> Since the callee takes ownership of desc on success (it stashes it in a
>  table), arguably it's cleaner to have it do so in all cases; it's an
>  aesthetic judgment call but I think I'd rather keep it this way and just
>  fix this one failure path than change all the existing failure paths and
>  the caller.
> Alejandro (original author of this code) might have a different opinion
>  in which case I'll defer to him but otherwise I'd say v2 is fine to apply
>  as-is.

Fair enough.

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