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Release of Invalid Pointer or Reference The advisory has been revoked - it doesn't affect any version of package kernel-headers  (opens in a new tab)

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  • Snyk IDSNYK-RHEL10-KERNELHEADERS-14439303
  • published17 Dec 2025
  • disclosed16 Dec 2025
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Introduced: 16 Dec 2025

CVE-2025-68312  (opens in a new tab)
CWE-763  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.

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().