| Name | CVE-2025-68312 |
| Description | In the Linux kernel, the following vulnerability has been resolved: usbnet: Prevents free active kevent The root cause of this issue are: 1. When probing the usbnet device, executing usbnet_link_change(dev, 0, 0); put the kevent work in global workqueue. However, the kevent has not yet been scheduled when the usbnet device is unregistered. Therefore, executing free_netdev() results in the "free active object (kevent)" error reported here. 2. Another factor is that when calling usbnet_disconnect()->unregister_netdev(), if the usbnet device is up, ndo_stop() is executed to cancel the kevent. However, because the device is not up, ndo_stop() is not executed. The solution to this problem is to cancel the kevent before executing free_netdev(). |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | bullseye | 5.10.223-1 | vulnerable |
| bullseye (security) | 5.10.247-1 | fixed | |
| bookworm | 6.1.148-1 | vulnerable | |
| bookworm (security) | 6.1.158-1 | vulnerable | |
| trixie | 6.12.57-1 | vulnerable | |
| trixie (security) | 6.12.48-1 | vulnerable | |
| forky | 6.17.11-1 | fixed | |
| sid | 6.17.12-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | bullseye | 5.10.247-1 | |||
| linux | source | (unstable) | 6.17.8-1 |
https://git.kernel.org/linus/420c84c330d1688b8c764479e5738bbdbf0a33de (6.18-rc4)