pinctrl: mediatek: eint: Fix invalid pointer dereference for v1 platforms

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-38266
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-07-10 08:15:24 UTC
Updated2026-09-14 12:17:36 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: pinctrl: mediatek: eint: Fix invalid pointer dereference for v1 platforms Commit 3ef9f710efcb ("pinctrl: mediatek: Add EINT support for multiple addresses") introduced an access to the 'soc' field of struct mtk_pinctrl in mtk_eint_do_init() and for that an include of pinctrl-mtk-common-v2.h. However, pinctrl drivers relying on the v1 common driver include pinctrl-mtk-common.h instead, which provides another definition of struct mtk_pinctrl that does not contain an 'soc' field. Since mtk_eint_do_init() can be called both by v1 and v2 drivers, it will now try to dereference an invalid pointer when called on v1 platforms. This has been observed on Genio 350 EVK (MT8365), which crashes very early in boot (the kernel trace can only be seen with earlycon). In order to fix this, since 'struct mtk_pinctrl' was only needed to get a 'struct mtk_eint_pin', make 'struct mtk_eint_pin' a parameter of mtk_eint_do_init() so that callers need to supply it, removing mtk_eint_do_init()'s dependency on any particular 'struct mtk_pinctrl'.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

EPSS: 0.001400000 probability, percentile 0.036860000 (date 2026-09-14)

Problem Types: CWE-476

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 3cc64c13deb38080afc6b37060e825d4fe0a4737 eae2b12df3aac874566f7025799ca4219572e44c git Not specified
CNA Linux Linux affected 7586766229354983cf5572f81295e69bf5abccf5 e578bbff985822573a27d4b7c9ec858e6014d033 git Not specified
CNA Linux Linux affected 00f864b4b5ce3c50f3217626c8de97fbda1b2ea6 abe8ad6a1a00c5c7be28b038d0ede0bdcacd8610 git Not specified
CNA Linux Linux affected 3ef9f710efcb5cc1335b5b09c16c757f703d7e5f 9ebe21ede792cef851847648962c363cac67d17f git Not specified
CNA Linux Linux affected 3ef9f710efcb5cc1335b5b09c16c757f703d7e5f 1c9977b263475373b31bbf86af94a5c9ae2be42c git Not specified
CNA Linux Linux affected 6.15 Not specified
CNA Linux Linux unaffected 6.15 semver Not specified
CNA Linux Linux unaffected 6.15.2 6.15.* semver Not specified
CNA Linux Linux unaffected 6.16 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/e578bbff985822573a27d4b7c9ec858e6014d033 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9ebe21ede792cef851847648962c363cac67d17f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/1c9977b263475373b31bbf86af94a5c9ae2be42c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/abe8ad6a1a00c5c7be28b038d0ede0bdcacd8610 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/eae2b12df3aac874566f7025799ca4219572e44c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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