CVE-2026-31687 | gpio: omap: do not register driver in probe()

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().

Published: 2026-04-27 Last update: 2026-05-06 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-31687 is rated Low Risk (25.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.03%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-31687

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-28 — 0.03% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-31687

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]

Weakness enumeration for CVE-2026-31687

GitHub Security Advisory for CVE-2026-31687

GHSA-wvmf-v9m3-rvrr · Severity: medium — In the Linux kernel, the following vulnerability has been resolved: gpio: omap: do not register...

OS Trackers for CVE-2026-31687

vendor priority summary link
debian not yet assigned CVE-2026-31687 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2026-31687
redhat — — https://access.redhat.com/security/cve/CVE-2026-31687
suse medium CVE-2026-31687 severity moderate: SUSE including 16 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 53 product×package rows across 13 product lines (SUSE Linux Enterprise High Availability Extension 15 SP7, SUSE Linux Enterprise Live Patching 15 SP7, … (13 product lines)): Known Not Affected 53. https://www.suse.com/security/cve/CVE-2026-31687/
ubuntu medium CVE-2026-31687 medium priority: Ubuntu including 161 source packages (linux, linux-allwinner-5.19, …), 1449 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): DNE 1048, ignored 173, needed 129, released 83, not-affected 10, needs-triage 5, pending 1. https://ubuntu.com/security/CVE-2026-31687

Affected software / configurations for CVE-2026-31687

Vendor Product Version Raw CPE
linux linux_kernel >= 2.6.22, < 5.10.251 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.11, < 5.15.201 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.16, < 6.1.164 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.2, < 6.6.125 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.7, < 6.12.72 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.13, < 6.18.11 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel 6.19 cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
linux linux_kernel 6.19 cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*
linux linux_kernel 6.19 cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*
linux linux_kernel 6.19 cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*
linux linux_kernel 6.19 cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*
linux linux_kernel 6.19 cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*
linux linux_kernel 6.19 cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*

References for CVE-2026-31687

URL Tags
https://git.kernel.org/stable/c/03db4dc9ad6eb91e640b517e00373ce877682854 Patch
https://git.kernel.org/stable/c/1c04c3a4de8d4bcb9202f94c44f26c57c2572308 Patch
https://git.kernel.org/stable/c/2211d77892913804d16c28c7415b82804ab1e54c Patch
https://git.kernel.org/stable/c/32f08c3ddd6dda6cbb6c9d715de10f21dccde50f Patch
https://git.kernel.org/stable/c/53a76425e0764421ba93bb9045d2e454667d5687 Patch
https://git.kernel.org/stable/c/57bcd3feffa79544c73a1a1872472389a391cc79 Patch
https://git.kernel.org/stable/c/673dafb9a86349a12a93151fd467625614dc7e12 Patch
https://git.kernel.org/stable/c/730e5ebff40c852e3ea57b71bf02a4b89c69435f Patch
https://git.kernel.org/stable/c/86588916e1887a5edb8a9161cd7ae81e47a7ed25 Patch
https://git.kernel.org/stable/c/a29215961d833f4de33a09c3964d31ebc6083033 Patch
https://git.kernel.org/stable/c/a7fa9460b86f810913b6779461d0448e7c11214c Patch
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