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Vulnerability record · CVE-2026-64242 · published 24 July 2026

CVE-2026-64242: Linux kernel double free vulnerability

Linux · Linux Kernel

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.

7.8 CVSS 3.1 High EPSS 0.18% · top 93.7% CWE-415 · Double free
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
13 Aug 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-64242), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.