CVE-2026-31759
usb: ulpi: fix double free in ulpi_register_interface() error path
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 1, 2026 |
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Affected Versions
Linux / Linux
289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f < 2f70ba9dae13a190673cc3f9b4aad52179738f60 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f < ee248e6e941e4f2e634df2bd43e5f1ef810ab6df 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f < 272a9b26c336a295e4e209157fed809706c1b1f7 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f < aaeae6533d77e6ed4def85baec01e2815ebbef61 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f < 8763f8317bb389aded32a32b08f6751cfff657d2 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f < 38c28fe25611099230f0965c925499bfcf46a795 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f < a6e5461f076c2ef63159f18e5cdbd30b50f0bc15 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f < 01af542392b5d41fd659d487015a71f627accce3
Linux / Linux
4.2
References
git.kernel.org: https://git.kernel.org/stable/c/2f70ba9dae13a190673cc3f9b4aad52179738f60 git.kernel.org: https://git.kernel.org/stable/c/ee248e6e941e4f2e634df2bd43e5f1ef810ab6df git.kernel.org: https://git.kernel.org/stable/c/272a9b26c336a295e4e209157fed809706c1b1f7 git.kernel.org: https://git.kernel.org/stable/c/aaeae6533d77e6ed4def85baec01e2815ebbef61 git.kernel.org: https://git.kernel.org/stable/c/8763f8317bb389aded32a32b08f6751cfff657d2 git.kernel.org: https://git.kernel.org/stable/c/38c28fe25611099230f0965c925499bfcf46a795 git.kernel.org: https://git.kernel.org/stable/c/a6e5461f076c2ef63159f18e5cdbd30b50f0bc15 git.kernel.org: https://git.kernel.org/stable/c/01af542392b5d41fd659d487015a71f627accce3