CVE-2026-31687

Summary

In the Linux kernel, the following vulnerability has been resolved:

gpio: omap: do not register driver in probe()

Commit 11a78b794496 ("ARM: OMAP: MPUIO wake updates") registers the omap_mpuio_driver from omap_mpuio_init(), which is called from omap_gpio_probe().

However, it neither makes sense to register drivers from probe() callbacks of other drivers, nor does the driver core allow registering drivers with a device lock already being held.

The latter was revealed by commit dc23806a7c47 ("driver core: enforce device_lock for driver_match_device()") leading to a potential deadlock condition described in [1].

Additionally, the omap_mpuio_driver is never unregistered from the driver core, even if the module is unloaded.

Hence, register the omap_mpuio_driver from the module initcall and unregister it in module_exit().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux11a78b7944963a8b052be46108d07a3ced9e2762 < 57bcd3feffa79544c73a1a1872472389a391cc79affected
LinuxLinux11a78b7944963a8b052be46108d07a3ced9e2762 < 86588916e1887a5edb8a9161cd7ae81e47a7ed25affected
LinuxLinux11a78b7944963a8b052be46108d07a3ced9e2762 < a29215961d833f4de33a09c3964d31ebc6083033affected
LinuxLinux11a78b7944963a8b052be46108d07a3ced9e2762 < 1c04c3a4de8d4bcb9202f94c44f26c57c2572308affected
LinuxLinuxadc1796eced46b48e23ec200a219d635f33a38ee < 673dafb9a86349a12a93151fd467625614dc7e12affected
LinuxLinux11a78b7944963a8b052be46108d07a3ced9e2762 < 2211d77892913804d16c28c7415b82804ab1e54caffected
LinuxLinuxcd0e0a76e40c2e77bcfc88291d00dca22b00158e < a7fa9460b86f810913b6779461d0448e7c11214caffected
LinuxLinux11a78b7944963a8b052be46108d07a3ced9e2762 < 32f08c3ddd6dda6cbb6c9d715de10f21dccde50faffected
LinuxLinux8d76b2488eb3cc0717ab81b60622cff4a5f90f79 < 53a76425e0764421ba93bb9045d2e454667d5687affected
LinuxLinux11a78b7944963a8b052be46108d07a3ced9e2762 < 730e5ebff40c852e3ea57b71bf02a4b89c69435faffected
LinuxLinuxbc82e5f4d7dc8237ae8cabc73aa46fc93c85d98c < 03db4dc9ad6eb91e640b517e00373ce877682854affected
LinuxLinux6.6.125 < 6.6.126affected
LinuxLinux6.12.72 < 6.12.73affected
LinuxLinux6.18.11 < 6.18.12affected
LinuxLinux6.19.1 < 6.19.2affected
LinuxLinux2.6.22affected
LinuxLinux0 < 2.6.22unaffected
LinuxLinux5.10.251 <= 5.10.*unaffected
LinuxLinux5.15.201 <= 5.15.*unaffected
LinuxLinux6.1.164 <= 6.1.*unaffected
LinuxLinux6.6.125 <= 6.6.*unaffected
LinuxLinux6.6.126 <= 6.6.*unaffected
LinuxLinux6.12.72 <= 6.12.*unaffected
LinuxLinux6.12.73 <= 6.12.*unaffected
LinuxLinux6.18.11 <= 6.18.*unaffected
LinuxLinux6.18.12 <= 6.18.*unaffected
LinuxLinux6.19.2 <= 6.19.*unaffected
LinuxLinux6.19 <= *unaffected

Weaknesses

References