driver core: platform: use generic driver_override infrastructure

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Summary

CVECVE-2026-31527
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-22 14:16:52 UTC
Updated2026-04-28 18:02:17 UTC
DescriptionIn 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]

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.000180000 probability, percentile 0.046200000 (date 2026-04-26)

Problem Types: CWE-416

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3d713e0e382e6fcfb4bba1501645b66c129ad60b 9a6086d2a828dd2ff74cf9abcae456670febd71f git Not specified
CNA Linux Linux affected 3d713e0e382e6fcfb4bba1501645b66c129ad60b 7c02a9bd7d14a89065fcf672b86d8e1d1a41d3b1 git Not specified
CNA Linux Linux affected 3d713e0e382e6fcfb4bba1501645b66c129ad60b edee7ee5a14c3b33f6d54641f5af5c5e9180992d git Not specified
CNA Linux Linux affected 3d713e0e382e6fcfb4bba1501645b66c129ad60b 2b38efc05bf7a8568ec74bfffea0f5cfa62bc01d git Not specified
CNA Linux Linux affected 3.17 Not specified
CNA Linux Linux unaffected 3.17 semver Not specified
CNA Linux Linux unaffected 6.12.80 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.21 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.11 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

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