usb: ulpi: fix double free in ulpi_register_interface() error path

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Summary

CVECVE-2026-31759
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-01 15:16:38 UTC
Updated2026-05-08 18:20:18 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: usb: ulpi: fix double free in ulpi_register_interface() error path When device_register() fails, ulpi_register() calls put_device() on ulpi->dev. The device release callback ulpi_dev_release() drops the OF node reference and frees ulpi, but the current error path in ulpi_register_interface() then calls kfree(ulpi) again, causing a double free. Let put_device() handle the cleanup through ulpi_dev_release() and avoid freeing ulpi again in ulpi_register_interface().

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: 0.000240000 probability, percentile 0.068060000 (date 2026-05-05)

Problem Types: CWE-415

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 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f 2f70ba9dae13a190673cc3f9b4aad52179738f60 git Not specified
CNA Linux Linux affected 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f ee248e6e941e4f2e634df2bd43e5f1ef810ab6df git Not specified
CNA Linux Linux affected 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f 272a9b26c336a295e4e209157fed809706c1b1f7 git Not specified
CNA Linux Linux affected 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f aaeae6533d77e6ed4def85baec01e2815ebbef61 git Not specified
CNA Linux Linux affected 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f 8763f8317bb389aded32a32b08f6751cfff657d2 git Not specified
CNA Linux Linux affected 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f 38c28fe25611099230f0965c925499bfcf46a795 git Not specified
CNA Linux Linux affected 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f a6e5461f076c2ef63159f18e5cdbd30b50f0bc15 git Not specified
CNA Linux Linux affected 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f 01af542392b5d41fd659d487015a71f627accce3 git Not specified
CNA Linux Linux affected 4.2 Not specified
CNA Linux Linux unaffected 4.2 semver Not specified
CNA Linux Linux unaffected 5.10.253 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.168 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.134 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.81 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.22 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.12 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/272a9b26c336a295e4e209157fed809706c1b1f7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/aaeae6533d77e6ed4def85baec01e2815ebbef61 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a6e5461f076c2ef63159f18e5cdbd30b50f0bc15 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/8763f8317bb389aded32a32b08f6751cfff657d2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ee248e6e941e4f2e634df2bd43e5f1ef810ab6df 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/01af542392b5d41fd659d487015a71f627accce3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/2f70ba9dae13a190673cc3f9b4aad52179738f60 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/38c28fe25611099230f0965c925499bfcf46a795 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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