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CVE-2025-38310 – Linux kernel Seg6 Nexthop Address Validation Off-by-One Vulnerability

The following table lists the changes that have been made to the
CVE-2025-38310 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

    Jul. 10, 2025

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

    seg6: Fix validation of nexthop addresses

    The kernel currently validates that the length of the provided nexthop
    address does not exceed the specified length. This can lead to the
    kernel reading uninitialized memory if user space provided a shorter
    length than the specified one.

    Fix by validating that the provided length exactly matches the specified
    one.
    Added Reference https://git.kernel.org/stable/c/668923c474608dd9ebce0fbcc41bd8a27aa73dd6
    Added Reference https://git.kernel.org/stable/c/7632fedb266d93ed0ed9f487133e6c6314a9b2d1
    Added Reference https://git.kernel.org/stable/c/cd4cd09810211fa23609c5c1018352e9e1cd8e5a
    Added Reference https://git.kernel.org/stable/c/cef33a86bcb04ecf4dc10c56f6c42ee9d1c54bac
    Added Reference https://git.kernel.org/stable/c/d2507aeea45b3c5aa24d5daae0cf3db76895c0b7
    Added Reference https://git.kernel.org/stable/c/d5d9fd13bc19a3f9f2a951c5b6e934d84205789e
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