{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-80649",
  "modified": "2026-10-09T11:39:44Z",
  "upstream": [
    "CVE-2026-80649"
  ],
  "published": "2026-08-28T06:50:33Z",
  "summary": "firmware: arm_scmi: Fix OOB in scmi_power_name_get()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Fix OOB in scmi_power_name_get()\n\nscmi_power_name_get() does not validate the domain number passed by the\nexternal caller, which may lead to an out-of-bounds access.\n\nFix this by returning \"unknown\" for invalid domains, like\nscmi_reset_name_get() does.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.178",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-80649"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/01613f5e4ff6c080260615392338e92e261d109b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ca94597440fa546e56293abe9d0af6c73535d44e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/30aa348494531adfb043b2e883afc0439e5fcdca"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0db2bb3c948ef8b7364768554d6ab5e1544dc441"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/11daac2817dca75e3eabb2050bc620c29e686fcd"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/11bb771f3c55b4cef3879e69da4ddecd6085569c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f9ef3f66f4b18078e464b7606f9497e4dbeb9905"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-29T06:25:05Z",
    "severity": {
      "source": "kernel CNA",
      "cvss_v3_score": 7.8,
      "cvss_v3_severity": "High",
      "scenario": "AV:L - scmi_power_name_get() is only reachable from kernel-side SCMI power-domain driver probe/registration and other in-kernel callers of scmi_power_proto_ops on ARM/ARM64 SoCs (phones, automotive, embedded); there is no network, Bluetooth, or physical-user input path into this firmware helper.\nAC:L - Once an out-of-range domain index reaches scmi_power_name_get(), the flaw deterministically indexes past pi->dom_info with no races, timing, or uncontrollable memory layout; the attacker fully controls the domain argument supplied to the unchecked pointer arithmetic.\nPR:L - On typical ARM/Android/embedded deployments SCMI power-domain registration runs automatically during boot/driver bind; the vulnerable name_get op is published to external kernel drivers that may pass unchecked domain IDs from device metadata without requiring init-namespace root beyond ordinary local access on those systems.\nUI:N - Exploitation requires no victim interaction such as mounting filesystems or opening files; triggering depends only on kernel driver registration paths or module activity, not on actions by an interactive user.\nS:U - The out-of-bounds read corrupts/leaks kernel heap metadata within the same kernel security authority; it does not cross VM, container, IOMMU, or firmware trust boundaries in a way that changes CVSS scope.\nC:H - scmi_power_name_get() performs an out-of-bounds read of struct power_dom_info entries (including the 64-byte name field) when domain >= num_domains, exposing adjacent kmalloc slab contents and enabling kernel memory disclosure through returned string pointers.\nI:H - Kernel guidance treats out-of-bounds dom_info indexing as memory corruption; returning a pointer into adjacent heap objects used as genpd names can be leveraged on ARM SCMI deployments for further heap grooming and arbitrary kernel write/control-flow hijack primitives.\nA:H - Indexing far beyond the allocated dom_info array can return pointers into unmapped or non-string memory that fault when dereferenced for sysfs/genpd naming or logging, causing a kernel OOPS/panic and complete loss of availability until reboot."
    }
  }
}