CVE-2026-31759
usb: ulpi: fix double free in ulpi_register_interface() error path
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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().
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.2
References 8
git.kernel.org
- stable/c/2f70ba9dae13a190673cc3f9b4aad52179738f60
- stable/c/ee248e6e941e4f2e634df2bd43e5f1ef810ab6df
- stable/c/272a9b26c336a295e4e209157fed809706c1b1f7
- stable/c/aaeae6533d77e6ed4def85baec01e2815ebbef61
- stable/c/8763f8317bb389aded32a32b08f6751cfff657d2
- stable/c/38c28fe25611099230f0965c925499bfcf46a795
- stable/c/a6e5461f076c2ef63159f18e5cdbd30b50f0bc15
- stable/c/01af542392b5d41fd659d487015a71f627accce3