CVE-2026-31759

HIGH

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

Title source: cna
STIX 2.1

Description

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().

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 2.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-415
Status published
Products (20)
Linux/Linux < 4.2
Linux/Linux 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f - 01af542392b5d41fd659d487015a71f627accce3
Linux/Linux 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f - 272a9b26c336a295e4e209157fed809706c1b1f7
Linux/Linux 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f - 2f70ba9dae13a190673cc3f9b4aad52179738f60
Linux/Linux 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f - 38c28fe25611099230f0965c925499bfcf46a795
Linux/Linux 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f - 8763f8317bb389aded32a32b08f6751cfff657d2
Linux/Linux 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f - a6e5461f076c2ef63159f18e5cdbd30b50f0bc15
Linux/Linux 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f - aaeae6533d77e6ed4def85baec01e2815ebbef61
Linux/Linux 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f - ee248e6e941e4f2e634df2bd43e5f1ef810ab6df
Linux/Linux 4.2
... and 10 more
Published May 01, 2026
Tracked Since May 01, 2026