CVE-2026-64242

Description

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: net2280: Fix double free in probe error path usb_initialize_gadget() installs gadget_release() as the release callback for the embedded gadget device. The struct net2280 instance is therefore released through gadget_release() when the gadget device's last reference is dropped. The probe error path calls net2280_remove(), which tears down the partially initialized device and drops the gadget reference with usb_put_gadget(). Calling kfree(dev) afterwards can free the same object again. Drop the explicit kfree() and let the gadget device release callback handle the final free. This issue was found by a static analysis tool I am developing.

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References

Other References

https://git.kernel.org/stable/c/085652fda7f38040d1a2c42d72614f418feb843f https://git.kernel.org/stable/c/48f89ead20e48d447ad29fa937b43b9fa981cf28 https://git.kernel.org/stable/c/550fa4d071a8c8e53072900869d37ae6abf4999d https://git.kernel.org/stable/c/71b3391dc81655ff058492f8e9d013b2c6e5747b https://git.kernel.org/stable/c/c5b9fdb1e8ddf50bc6272927edb118679f170350 https://git.kernel.org/stable/c/c8547c74988e0b5f4cbb1b895e2a57aae084f070 https://git.kernel.org/stable/c/db2b72e83a0208ae2b3b270bf91662b1c6849a9b https://git.kernel.org/stable/c/e6f8be12f0307145b9a6010f044925952b37de8b

Frequently Asked Questions

What is CVE-2026-64242? +

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: net2280: Fix double free in probe error path usb_initialize_gadget() installs gadget_release() as the release callback for the embedded gadget device. The struct net2280 instance is therefore released through gadget_release() when the gadget device's last reference is dropped. The probe error path calls net2280_remove(), which tears down the partially initialized device and drops the gadget reference with usb_put_gadget(). Calling kfree(dev) afterwards can free the same object again. Drop the explicit kfree() and let the gadget device release callback handle the final free. This issue was found by a static analysis tool I am developing.

How do I check if I'm vulnerable to CVE-2026-64242? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

CVE-2026-64242

Description

References

Other References

Frequently Asked Questions

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