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CVE-2021-47669 – Linux Kernel – CAN vxcan Use After Free

The following table lists the changes that have been made to the
CVE-2021-47669 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • CVE Modified
    by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Apr. 17, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-416
  • New CVE Received
    by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Apr. 17, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved:

    can: vxcan: vxcan_xmit: fix use after free bug

    After calling netif_rx_ni(skb), dereferencing skb is unsafe.
    Especially, the canfd_frame cfd which aliases skb memory is accessed
    after the netif_rx_ni().
    Added Reference https://git.kernel.org/stable/c/6d6dcf2399cdd26f7f5426ca8dd8366b7f2ca105
    Added Reference https://git.kernel.org/stable/c/75854cad5d80976f6ea0f0431f8cedd3bcc475cb
    Added Reference https://git.kernel.org/stable/c/9b820875a32a3443d67bfd368e93038354e98052
    Added Reference https://git.kernel.org/stable/c/a24476b37167816e6352ca1a2cf3769847774f70
    Added Reference https://git.kernel.org/stable/c/e771a874076115df8bff27d325edfd2340e4ec69
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