CVE-2025-38542 – Linux Kernel Device Refcount Leak Vulnerability in Appletalk Net Driver

The following table lists the changes that have been made to the
CVE-2025-38542 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

    Aug. 16, 2025

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

    net: appletalk: Fix device refcount leak in atrtr_create()

    When updating an existing route entry in atrtr_create(), the old device
    reference was not being released before assigning the new device,
    leading to a device refcount leak. Fix this by calling dev_put() to
    release the old device reference before holding the new one.

    Added Reference https://git.kernel.org/stable/c/473f3eadfc73b0fb6d8dee5829d19a5772e387f7
    Added Reference https://git.kernel.org/stable/c/4a17370da6e476d3d275534e9e9cd2d02c57ca46
    Added Reference https://git.kernel.org/stable/c/64124cf0aab0dd1e18c0fb5ae66e45741e727f8b
    Added Reference https://git.kernel.org/stable/c/711c80f7d8b163d3ecd463cd96f07230f488e750
    Added Reference https://git.kernel.org/stable/c/a7852b01793669248dce0348d14df89e77a32afd
    Added Reference https://git.kernel.org/stable/c/b2f5dfa87367fdce9f8b995bc6c38f64f9ea2c90
    Added Reference https://git.kernel.org/stable/c/b92bedf71f25303e203a4e657489d76691a58119
    Added Reference https://git.kernel.org/stable/c/d2e9f50f0bdad73b64a871f25186b899624518c4
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