CVE-2026-80649 (GCVE-0-2026-80649)

Vulnerability from cvelistv5 – Published: 2026-08-28 06:48 – Updated: 2026-08-29 06:21
VLAI
Title
firmware: arm_scmi: Fix OOB in scmi_power_name_get()
Summary
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Fix OOB in scmi_power_name_get() scmi_power_name_get() does not validate the domain number passed by the external caller, which may lead to an out-of-bounds access. Fix this by returning "unknown" for invalid domains, like scmi_reset_name_get() does.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 76a6550990e296a7acbb4d33201c9740be912a8c , < 01613f5e4ff6c080260615392338e92e261d109b (git)
Affected: 76a6550990e296a7acbb4d33201c9740be912a8c , < ca94597440fa546e56293abe9d0af6c73535d44e (git)
Affected: 76a6550990e296a7acbb4d33201c9740be912a8c , < 30aa348494531adfb043b2e883afc0439e5fcdca (git)
Affected: 76a6550990e296a7acbb4d33201c9740be912a8c , < 0db2bb3c948ef8b7364768554d6ab5e1544dc441 (git)
Affected: 76a6550990e296a7acbb4d33201c9740be912a8c , < 11daac2817dca75e3eabb2050bc620c29e686fcd (git)
Affected: 76a6550990e296a7acbb4d33201c9740be912a8c , < 11bb771f3c55b4cef3879e69da4ddecd6085569c (git)
Affected: 76a6550990e296a7acbb4d33201c9740be912a8c , < f9ef3f66f4b18078e464b7606f9497e4dbeb9905 (git)
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Linux Linux Affected: 4.17
Unaffected: 0 , < 4.17 (semver)
Unaffected: 5.15.212 , ≤ 5.15.* (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/arm_scmi/power.c"
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              "version": "0",
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              "versionType": "semver"
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              "version": "7.1.5",
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              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
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                  "versionStartIncluding": "4.17",
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          "value": "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."
        }
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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              "lang": "en",
              "value": "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-\u003edom_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 \u003e= 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."
            }
          ]
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      "providerMetadata": {
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/01613f5e4ff6c080260615392338e92e261d109b"
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        {
          "url": "https://git.kernel.org/stable/c/f9ef3f66f4b18078e464b7606f9497e4dbeb9905"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80649",
    "datePublished": "2026-08-28T06:48:58.203Z",
    "dateReserved": "2026-08-26T14:34:25.779Z",
    "dateUpdated": "2026-08-29T06:21:42.793Z",
    "state": "PUBLISHED"
  },
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-01T12:37:05+00:00",
      "cve": "CVE-2026-80649",
      "id": "CVE-2026-80649",
      "initial_release_date": "2026-08-28T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: firmware: arm_scmi: Fix OOB in scmi_power_name_get()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80649.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.