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CVE-2025-21843 – Linux Kernel Panthor Uninitialized Data Use

The following table lists the changes that have been made to the
CVE-2025-21843 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

    Mar. 07, 2025

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

    drm/panthor: avoid garbage value in panthor_ioctl_dev_query()

    ‘priorities_info’ is uninitialized, and the uninitialized value is copied
    to user object when calling PANTHOR_UOBJ_SET(). Using memset to initialize
    ‘priorities_info’ to avoid this garbage value problem.
    Added Reference https://git.kernel.org/stable/c/3b32b7f638fe61e9d29290960172f4e360e38233
    Added Reference https://git.kernel.org/stable/c/64b95bbc08bacf3e4b05c8604e6a4fec43bb712a
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