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Fri, 25 Sep 2026 23:13:15 -0700 (PDT) Date: Sat, 26 Sep 2026 08:13:13 +0200 From: Uwe =?utf-8?Q?Kleine-K=C3=B6nig_=28The_Capable_Hub=29?= To: Jonathan Cameron Cc: Jiale Yao , Nuno =?utf-8?B?U8Oh?= , Michael Hennerich , Rodrigo Alencar , David Lechner , Andy Shevchenko , Anshul Dalal , Antoniu Miclaus , Herve Codina , Shi Hao , Linus Walleij , Krzysztof Kozlowski , Angel Iglesias , linux@analog.com, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/7] iio: validate SPI match data before use Message-ID: References: <20260925131738.2200612-1-yaojiale02@163.com> <20260926021143.478d5361@jic23-hlaptop> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="qj3qlzf53fecmdod" Content-Disposition: inline In-Reply-To: <20260926021143.478d5361@jic23-hlaptop> --qj3qlzf53fecmdod Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH 0/7] iio: validate SPI match data before use MIME-Version: 1.0 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 wrote: >=20 > > 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. > >=20 > > 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. >=20 > 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. >=20 >=20 > 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-v1-0-58c35ded= 3b83@nvidia.com/ Best regards Uwe --qj3qlzf53fecmdod Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEP4GsaTp6HlmJrf7Tj4D7WH0S/k4FAmq3YnYACgkQj4D7WH0S /k5G3wf+ISl+49DMFXf4GNQEB2v8tA68jc5xy+T5JzNOcNEajtXS1J/YhuorbySX ienyxR20KZdHnn2ax1uAP+2IjdhZbLyoRFxHUw+p+EJ5gEJNm4I0vQaMTr/IhF79 Mkkc9TIyswqCMGbg3fUHtDOGWQTjUwlpRRZwKcdLvUgGL3A+ZAZXj36SlPhQn/cA DUo1TDIplGtu+FuHgPOXHd9TcmMbIsqz7Dw0UitCJPIMQl1NJRhracEWxaX3Ro4f /8sncXjnm7obW25uWPW2JvMqcZr8Kp6bUWsp3lj6gapfnyXXb97Htcoag4i+beMY kVyfupYJzav/YzrpCYV1FqnYd18jlQ== =VFj7 -----END PGP SIGNATURE----- --qj3qlzf53fecmdod--