Bug#1123987: UBSAN: array-index-out-of-bounds in ucsi.c
Hi Pascal,
On Sat, Jan 17, 2026 at 06:37:29AM +0100, pdormeau@free.fr wrote:
>
> Le Sat, 17 Jan 2026 00:10:39 +0100,
> Salvatore Bonaccorso <carnil@debian.org> a écrit :
>
> >So as per upstream discussion this is a firmware bug and the issue
> >should be reported to Lenovo accordingly.
> >
> >[🔎] aWizCe9um6ZrKfbT@kuha/">https://lore.kernel.org/linux-usb/[🔎] aWizCe9um6ZrKfbT@kuha/
> >
> >Pascal can you do that? I will close this Linux kernel.
> >
> >Regards,
> >Salvatore
> Thank you Salvatore,
> I already reported to the customer service.
> They asked me to upgrade to the latest BIOS firmware.
> Will do that soon, then report again to Lenovo if it does not solve the
> problem.
Ack!
> It is an entry level laptop and I fear they answer that they only
> support Windows. Bad luck because we have 2 other Lenovo laptops
> here that run without any problem under Linux.
> PS : I saw that a patch has been proposed as a RFC on the kernel list.
> I will also test it.
About the patch: AFAIU it won't be accepted, because it's believed
that the issue should be handled in the broken firmware. But we can
see how the thing proceeds.
Regards,
Salvatore
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