CVE-2026-64242
Published: July 29, 2026Last modified: July 29, 2026
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.
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.177-r0) |
| 25 LTS | linux-lts | Fixed (6.12.95-r0) | |
| Stream | linux-lts | Fixed (6.18.35-r1) |
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