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CVE-2025-21659 – Apache Netlink NAPI Namespace Violation

The following table lists the changes that have been made to the
CVE-2025-21659 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.

  • New CVE Received
    by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jan. 21, 2025

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

    netdev: prevent accessing NAPI instances from another namespace

    The NAPI IDs were not fully exposed to user space prior to the netlink
    API, so they were never namespaced. The netlink API must ensure that
    at the very least NAPI instance belongs to the same netns as the owner
    of the genl sock.

    napi_by_id() can become static now, but it needs to move because of
    dev_get_by_napi_id().
    Added Reference https://git.kernel.org/stable/c/b683ba0df11ff563cc237eb1b74d6adfa77226bf
    Added Reference https://git.kernel.org/stable/c/d1cacd74776895f6435941f86a1130e58f6dd226
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