Re: [PATCH 0/7] iio: validate SPI match data before use

[Uwe Kleine-König (The Capable Hub)]

Hello Jonathan,

On Sat, Sep 26, 2026 at 02:11:43AM +0100, Jonathan Cameron wrote:
> On Fri, 25 Sep 2026 21:17:29 +0800
> Jiale Yao <yaojiale02@xxxxxxx> wrote:
> 
> > SPI driver_override can bind a device without a matching entry in the
> > driver's ID tables.  spi_get_device_match_data() then returns NULL.
> > 
> > These seven IIO drivers use that result without checking it, causing a
> > NULL pointer dereference during probe.  Add the missing checks before
> > the match data is used.
> 
> I was hoping we'd close this finally by adding a flag to the
> drivers to say they should fail a match if driver_override is set.
> Given I thought maybe that would happen when Andy looked into this
> a while back I've been sitting on this problem for a while.
> 
> 
> Unfortunately seems we have to carry on papering over it in the
> drivers for now :(

Note there is another effort:
https://lore.kernel.org/lkml/20260922-driver-override-opt-out-v1-0-58c35ded3b83@xxxxxxxxxx/

Best regards
Uwe

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