CVE-2026-31759
What it is
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().
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Weakness
- CWE-415
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.253
- Linux Kernel < 5.15.203
- Linux Kernel < 6.1.168
- Linux Kernel < 6.6.134
- Linux Kernel < 6.12.81
- Linux Kernel < 6.18.22
- Linux Kernel < 6.19.12
- Linux Kernel 7.0
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-31759.md and follow it. Check whether this project is affected by CVE-2026-31759. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- 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
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