CVE-2026-31687
Description
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().
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 6.1.164-1 |
| debian | bullseye | fixed | 5.10.251-1 |
| debian | forky | fixed | 6.18.12-1 |
| debian | sid | fixed | 6.18.12-1 |
| debian | trixie | fixed | 6.12.73-1 |
| linux-kernel | affected | 5.10.251 | |
| linux-kernel | 6.19 | affected | |
References
- https://git.kernel.org/stable/c/03db4dc9ad6eb91e640b517e00373ce877682854
- https://git.kernel.org/stable/c/1c04c3a4de8d4bcb9202f94c44f26c57c2572308
- https://git.kernel.org/stable/c/2211d77892913804d16c28c7415b82804ab1e54c
- https://git.kernel.org/stable/c/32f08c3ddd6dda6cbb6c9d715de10f21dccde50f
- https://git.kernel.org/stable/c/53a76425e0764421ba93bb9045d2e454667d5687
- https://git.kernel.org/stable/c/57bcd3feffa79544c73a1a1872472389a391cc79
- https://git.kernel.org/stable/c/673dafb9a86349a12a93151fd467625614dc7e12
- https://git.kernel.org/stable/c/730e5ebff40c852e3ea57b71bf02a4b89c69435f
- https://git.kernel.org/stable/c/86588916e1887a5edb8a9161cd7ae81e47a7ed25
- https://git.kernel.org/stable/c/a29215961d833f4de33a09c3964d31ebc6083033
- https://git.kernel.org/stable/c/a7fa9460b86f810913b6779461d0448e7c11214c
- https://www.suse.com/security/cve/CVE-2026-31687.html
- https://security-tracker.debian.org/tracker/CVE-2026-31687
CWEs
CWE-667
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.