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CVE-2022-49915 – Linux kernel mISDN driver Memory Leak Vulnerability

The following table lists the changes that have been made to the
CVE-2022-49915 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

    May. 01, 2025

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

    mISDN: fix possible memory leak in mISDN_register_device()

    Afer commit 1fa5ae857bb1 (“driver core: get rid of struct device’s
    bus_id string array”), the name of device is allocated dynamically,
    add put_device() to give up the reference, so that the name can be
    freed in kobject_cleanup() when the refcount is 0.

    Set device class before put_device() to avoid null release() function
    WARN message in device_release().
    Added Reference https://git.kernel.org/stable/c/029d5b7688a2f3a86f2a3be5a6ba9cc968c80e41
    Added Reference https://git.kernel.org/stable/c/080aabfb29b2ee9cbb8894a1d039651943d3773e
    Added Reference https://git.kernel.org/stable/c/0d4e91efcaee081e919b3c50e875ecbb84290e41
    Added Reference https://git.kernel.org/stable/c/2ff6b669523d3b3d253a044fa9636a67d0694995
    Added Reference https://git.kernel.org/stable/c/a636fc5a7cabd05699b5692ad838c2c7a3abec7b
    Added Reference https://git.kernel.org/stable/c/d1d1aede313eb2b9a84afd60ff6cfb7c33631e0e
    Added Reference https://git.kernel.org/stable/c/e77d213843e67b4373285712699b692f9c743f61
    Added Reference https://git.kernel.org/stable/c/e7d1d4d9ac0dfa40be4c2c8abd0731659869b297
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