Vulnerability-Lookup

FKIE_CVE-2026-31527

Vulnerability from fkie_nvd - Published: 2026-04-22 14:16 - Updated: 2026-04-28 18:02

Severity ?

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: driver core: platform: use generic driver_override infrastructure When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally. Note that calling match() from __driver_attach() without the device lock held is intentional. [1]

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2b38efc05bf7a8568ec74bfffea0f5cfa62bc01d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7c02a9bd7d14a89065fcf672b86d8e1d1a41d3b1	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9a6086d2a828dd2ff74cf9abcae456670febd71f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/edee7ee5a14c3b33f6d54641f5af5c5e9180992d	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
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          "cpeMatch": [
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: platform: use generic driver_override infrastructure\n\nWhen a driver is probed through __driver_attach(), the bus\u0027 match()\ncallback is called without the device lock held, thus accessing the\ndriver_override field without a lock, which can cause a UAF.\n\nFix this by using the driver-core driver_override infrastructure taking\ncare of proper locking internally.\n\nNote that calling match() from __driver_attach() without the device lock\nheld is intentional. [1]"
    }
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  "id": "CVE-2026-31527",
  "lastModified": "2026-04-28T18:02:17.463",
  "metrics": {
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          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-31527 (GCVE-0-2026-31527)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:54 – Updated: 2026-04-22 13:54

Title

driver core: platform: use generic driver_override infrastructure

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/9a6086d2a828dd2ff…
	https://git.kernel.org/stable/c/7c02a9bd7d14a8906…
	https://git.kernel.org/stable/c/edee7ee5a14c3b33f…
	https://git.kernel.org/stable/c/2b38efc05bf7a8568…

Impacted products

Vendor

Product

Version

Linux

Affected: 3d713e0e382e6fcfb4bba1501645b66c129ad60b , < 9a6086d2a828dd2ff74cf9abcae456670febd71f (git)
Affected: 3d713e0e382e6fcfb4bba1501645b66c129ad60b , < 7c02a9bd7d14a89065fcf672b86d8e1d1a41d3b1 (git)
Affected: 3d713e0e382e6fcfb4bba1501645b66c129ad60b , < edee7ee5a14c3b33f6d54641f5af5c5e9180992d (git)
Affected: 3d713e0e382e6fcfb4bba1501645b66c129ad60b , < 2b38efc05bf7a8568ec74bfffea0f5cfa62bc01d (git)

Linux

Affected: 3.17
Unaffected: 0 , < 3.17 (semver)
Unaffected: 6.12.80 , ≤ 6.12.* (semver)
Unaffected: 6.18.21 , ≤ 6.18.* (semver)
Unaffected: 6.19.11 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-31527

CVE-2026-31527 (GCVE-0-2026-31527)

Tags

Sightings

Nomenclature