CVE-2026-31759
HIGH SEVERITYCVSS Score & Metrics
Base Score
7.8 / 10
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vulnerability 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().
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().
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-415
Source
NVD
Vendor
Linux
Product
Linux
External References
- https://git.kernel.org/stable/c/01af542392b5d41fd659d487015a71f627accce3
- https://git.kernel.org/stable/c/272a9b26c336a295e4e209157fed809706c1b1f7
- https://git.kernel.org/stable/c/2f70ba9dae13a190673cc3f9b4aad52179738f60
- https://git.kernel.org/stable/c/38c28fe25611099230f0965c925499bfcf46a795
- https://git.kernel.org/stable/c/8763f8317bb389aded32a32b08f6751cfff657d2
- https://git.kernel.org/stable/c/a6e5461f076c2ef63159f18e5cdbd30b50f0bc15
- https://git.kernel.org/stable/c/aaeae6533d77e6ed4def85baec01e2815ebbef61
- https://git.kernel.org/stable/c/ee248e6e941e4f2e634df2bd43e5f1ef810ab6df
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