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CVE-2025-21789 – LoongArch Linux Kernel Out-of-Bounds Read

The following table lists the changes that have been made to the
CVE-2025-21789 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

    Feb. 27, 2025

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

    LoongArch: csum: Fix OoB access in IP checksum code for negative lengths

    Commit 69e3a6aa6be2 (“LoongArch: Add checksum optimization for 64-bit
    system”) would cause an undefined shift and an out-of-bounds read.

    Commit 8bd795fedb84 (“arm64: csum: Fix OoB access in IP checksum code
    for negative lengths”) fixes the same issue on ARM64.
    Added Reference https://git.kernel.org/stable/c/6287f1a8c16138c2ec750953e35039634018c84a
    Added Reference https://git.kernel.org/stable/c/964a8895704a22efc06a2a3276b624a5ae985a06
    Added Reference https://git.kernel.org/stable/c/9f15a8df542c0f08732a67d1a14ee7c22948fb97
    Added Reference https://git.kernel.org/stable/c/d6508ffff32b44b6d0de06704034e4eef1c307a7
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