Is CVE-2019-9503, CVE-2019-9500 brcmfmac frame validation bypass relevant for openwrt?

I just read about

CVE-2019-9503, CVE-2019-9500 brcmfmac frame validation bypass

So far I understand that Client devices are affected that use USB wifi adapters with Broadcom drivers. Also brcmfmac.
latest brcmfmac and the linux kernel are already patched - what I don't understand: Is this also used for openwrt? If yes, is this vulnerability also relevant for openwrt (like in package kmod-brcmfmac)?

Best regards,
Frood

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