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Re: [PATCH] brcmfmac: firmware: Fix crash in brcm_alt_fw_path

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Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx> writes:

> On 1/19/2022 9:53 AM, Phil Elwell wrote:
>> On 19/01/2022 06:01, Kalle Valo wrote:
>>> Phil Elwell <phil@xxxxxxxxxxxxxxx> writes:
>>>
>>>> The call to brcm_alt_fw_path in brcmf_fw_get_firmwares is not protected
>>>> by a check to the validity of the fwctx->req->board_type pointer. This
>>>> results in a crash in strlcat when, for example, the WLAN chip is found
>>>> in a USB dongle.
>>>>
>>>> Prevent the crash by adding the necessary check.
>>>>
>>>> See: https://github.com/raspberrypi/linux/issues/4833
>>>>
>>>> Fixes: 5ff013914c62 ("brcmfmac: firmware: Allow per-board firmware
>>>> binaries")
>>>> Signed-off-by: Phil Elwell <phil@xxxxxxxxxxxxxxx>
>>>
>>> I think this should go to v5.17.
>>
>> Is that an Ack? Are you asking me to submit the patch in a different way?
>
> Similar/same patch was submitted by Hector Martin [1].
>
> Regards,
> Arend
>
> [1]
> https://patchwork.kernel.org/project/linux-wireless/patch/20220117142919.207370-4-marcan@xxxxxxxxx/

I would prefer to take this patch to wireless tree and drop Hector's
version. Is that ok?

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches



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