Re: [PATCH] brcmfmac: Fix a NULL pointer dereference in brcmf_of_probe()

[Arend van Spriel]

On 1/24/2022 5:50 PM, 'Zhou Qingyang' via BRCM80211-DEV-LIST,PDL wrote:
> In brcmf_of_probe(), the return value of devm_kzalloc() is assigned to
> board_type and there is a dereference of it in strcpy() right after
> that. devm_kzalloc() could return NULL on failure of allocation, which
> could lead to NULL pointer dereference.
>
> Fix this bug by adding a NULL check of board_type.
>
> This bug was found by a static analyzer.
>
> Builds with 'make allyesconfig' show no new warnings,
> and our static analyzer no longer warns about this code

Thanks for this suggestion. However, this has been addressed already by 
this patch [1].

Regards,
Arend

[1] 
https://patchwork.kernel.org/project/linux-wireless/patch/20220117142919.207370-8-marcan@xxxxxxxxx/

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