CVE-2026-31687: Linux kernel · gpio: omap: do not register driver in probe()
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 27 Oct 2026, 00:07 UTC
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 27 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
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().
References
- nvd.nist.gov/vuln/detail/CVE-2026-31687 (opens in a new tab)
- git.kernel.org/stable/c/03db4dc9ad6eb91e640b517e00373ce877682854 (opens in a new tab)
- git.kernel.org/stable/c/1c04c3a4de8d4bcb9202f94c44f26c57c2572308 (opens in a new tab)
- git.kernel.org/stable/c/2211d77892913804d16c28c7415b82804ab1e54c (opens in a new tab)
- git.kernel.org/stable/c/32f08c3ddd6dda6cbb6c9d715de10f21dccde50f (opens in a new tab)
- git.kernel.org/stable/c/53a76425e0764421ba93bb9045d2e454667d5687 (opens in a new tab)
- git.kernel.org/stable/c/57bcd3feffa79544c73a1a1872472389a391cc79 (opens in a new tab)
- git.kernel.org/stable/c/673dafb9a86349a12a93151fd467625614dc7e12 (opens in a new tab)
- git.kernel.org/stable/c/730e5ebff40c852e3ea57b71bf02a4b89c69435f (opens in a new tab)
- git.kernel.org/stable/c/86588916e1887a5edb8a9161cd7ae81e47a7ed25 (opens in a new tab)
- git.kernel.org/stable/c/a29215961d833f4de33a09c3964d31ebc6083033 (opens in a new tab)
- git.kernel.org/stable/c/a7fa9460b86f810913b6779461d0448e7c11214c (opens in a new tab)