CVE-2025-39815 (GCVE-0-2025-39815)
Vulnerability from cvelistv5
Published
2025-09-16 13:00
Modified
2025-09-29 05:59
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: fix stack overrun when loading vlenb The userspace load can put up to 2048 bits into an xlen bit stack buffer. We want only xlen bits, so check the size beforehand.
References
Impacted products
Vendor Product Version
Linux Linux Version: 2fa290372dfe7dd248b1c16f943f273a3e674f22
Version: 2fa290372dfe7dd248b1c16f943f273a3e674f22
Version: 2fa290372dfe7dd248b1c16f943f273a3e674f22
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{
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        {
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          "product": "Linux",
          "programFiles": [
            "arch/riscv/kvm/vcpu_vector.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRISC-V: KVM: fix stack overrun when loading vlenb\n\nThe userspace load can put up to 2048 bits into an xlen bit stack\nbuffer.  We want only xlen bits, so check the size beforehand."
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      "providerMetadata": {
        "dateUpdated": "2025-09-29T05:59:59.910Z",
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        "shortName": "Linux"
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    "datePublished": "2025-09-16T13:00:16.250Z",
    "dateReserved": "2025-04-16T07:20:57.138Z",
    "dateUpdated": "2025-09-29T05:59:59.910Z",
    "state": "PUBLISHED"
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  }
}


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