CVE-2026-31759

In 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().

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/01af542392b5d41fd659d487015a71f627accce3	Patch
https://git.kernel.org/stable/c/272a9b26c336a295e4e209157fed809706c1b1f7	Patch
https://git.kernel.org/stable/c/2f70ba9dae13a190673cc3f9b4aad52179738f60	Patch
https://git.kernel.org/stable/c/38c28fe25611099230f0965c925499bfcf46a795	Patch
https://git.kernel.org/stable/c/8763f8317bb389aded32a32b08f6751cfff657d2	Patch
https://git.kernel.org/stable/c/a6e5461f076c2ef63159f18e5cdbd30b50f0bc15	Patch
https://git.kernel.org/stable/c/aaeae6533d77e6ed4def85baec01e2815ebbef61	Patch
https://git.kernel.org/stable/c/ee248e6e941e4f2e634df2bd43e5f1ef810ab6df	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc3::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc4::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc5::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc6::::::

History

No history.

Information

Published : 2026-05-01 15:16

Updated : 2026-06-17 10:34

NVD link : CVE-2026-31759

Mitre link : CVE-2026-31759

CVE.ORG link : CVE-2026-31759

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-415

Double Free

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