RE: brcmfmac: driver crash with iOS 18.6.1, potential DoS

Chris Spargo <[email protected]> Mon, 29 Sep 2025 17:24:13 +0000

Newsgroups	dev.linux.lists.brcm80211,org.kernel.vger.linux-wireless
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Our experience is with kernel version 5.4.83-v7+.    I've not rebuilt the kernel or worked in that space for some time.   

I'm happy to follow directions and give specific examples and feedback if there's something I can test, but I don't want to cloud the results by not knowing what I'm doing.   Let me know how I can help.

Thanks-
Chris


-----Original Message-----
From: Stefan Wahren <[email protected]> 
Sent: Monday, September 29, 2025 12:06 PM
To: Hsien Chou <[email protected]>; Arend van Spriel <[email protected]>; Chris Spargo <[email protected]>
Cc: [email protected]; [email protected]; [email protected]
Subject: Re: brcmfmac: driver crash with iOS 18.6.1, potential DoS

Hi,
regarding reproducibility, I would assume Arend is using the mainline kernel and Hsien just tested the Raspberry Pi vendor kernel. The brcmfmac driver has some modifications downstream.

@Hsien or @Chris,
are you able to reproduce it with a mainline/torvalds kernel?
You only need to replace Kernel, Modules and Device tree.

Best regards