pinctrl: pinconf-generic: Fully validate 'pinmux' property

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Summary

CVECVE-2026-53307
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-26 20:17:24 UTC
Updated2026-07-06 20:14:45 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: pinctrl: pinconf-generic: Fully validate 'pinmux' property The pinconf_generic_parse_dt_pinmux() assumes that the 'pinmux' property is not empty when present. This might be not true. With that, the allocator will give a special value in return and not NULL which lead to the crash when trying to access that (invalid) memory. Fix that by fully validating 'pinmux' value, including its length.

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: 0.001540000 probability, percentile 0.049680000 (date 2026-07-04)

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 7112c05fff83e15726dd60a10248b76474e3cdf9 6476aac13805721e16439bd71f0e1703a4154517 git Not specified
CNA Linux Linux affected 7112c05fff83e15726dd60a10248b76474e3cdf9 b7842b722169359e7ffe4b838d2496e9e72ac996 git Not specified
CNA Linux Linux affected 7112c05fff83e15726dd60a10248b76474e3cdf9 c98324ea7849b6e5baa1774f71709b375a2c2f9e git Not specified
CNA Linux Linux affected 6.15 Not specified
CNA Linux Linux unaffected 6.15 semver Not specified
CNA Linux Linux unaffected 6.18.33 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.10 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c98324ea7849b6e5baa1774f71709b375a2c2f9e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b7842b722169359e7ffe4b838d2496e9e72ac996 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/6476aac13805721e16439bd71f0e1703a4154517 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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