Vulnerability-Lookup

FKIE_CVE-2023-52871

Vulnerability from fkie_nvd - Published: 2024-05-21 16:15 - Updated: 2026-08-04 10:18

Severity

7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Summary

In the Linux kernel, the following vulnerability has been resolved: soc: qcom: llcc: Handle a second device without data corruption Usually there is only one llcc device. But if there were a second, even a failed probe call would modify the global drv_data pointer. So check if drv_data is valid before overwriting it.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1143bfb9b055897975aeaea254da148e19524493	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3565684309e54fa998ea27f37028d67cc3e1dff2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5e5b85ea0f4bc484bfe4cc73ead51fa48d2366a0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/995ee1e84e8db7fa5dcdde7dfe0bd7bb6f9bbb8c	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cc1a1dcb411fe224f48553cfdcdfe6e61395b69c	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f0ef883cae309bc5e8cdfcdbc1b4822732ce20a8	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f1a1bc8775b26345aba2be278118999e7f661d3d	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/1143bfb9b055897975aeaea254da148e19524493	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/3565684309e54fa998ea27f37028d67cc3e1dff2	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/5e5b85ea0f4bc484bfe4cc73ead51fa48d2366a0	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/995ee1e84e8db7fa5dcdde7dfe0bd7bb6f9bbb8c	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/cc1a1dcb411fe224f48553cfdcdfe6e61395b69c	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/f0ef883cae309bc5e8cdfcdbc1b4822732ce20a8	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/f1a1bc8775b26345aba2be278118999e7f661d3d	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/soc/qcom/llcc-qcom.c"
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      ],
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  "configurations": [
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  ],
  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: qcom: llcc: Handle a second device without data corruption\n\nUsually there is only one llcc device. But if there were a second, even\na failed probe call would modify the global drv_data pointer. So check\nif drv_data is valid before overwriting it."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: soc: qcom: llcc: Manejar un segundo dispositivo sin corrupci\u00f3n de datos. Generalmente solo hay un dispositivo llcc. Pero si hubiera un segundo, incluso una llamada de sonda fallida modificar\u00eda el puntero global drv_data. As\u00ed que verifique si drv_data es v\u00e1lido antes de sobrescribirlo."
    }
  ],
  "id": "CVE-2023-52871",
  "lastModified": "2026-08-04T10:18:46.700",
  "metrics": {
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        "type": "Secondary"
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          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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    "ssvcV203": [
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          "options": [
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              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
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          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-05-21T18:17:57.620656Z",
          "version": "2.0.3"
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  "published": "2024-05-21T16:15:23.907",
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  ]
}

CVE-2023-52871 (GCVE-0-2023-52871)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:32 – Updated: 2026-08-05 09:11

Title

soc: qcom: llcc: Handle a second device without data corruption

Summary

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-21 18:17 UTC

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/cc1a1dcb411fe224f…
https://git.kernel.org/stable/c/5e5b85ea0f4bc484b…
https://git.kernel.org/stable/c/995ee1e84e8db7fa5…
https://git.kernel.org/stable/c/f0ef883cae309bc5e…
https://git.kernel.org/stable/c/3565684309e54fa99…
https://git.kernel.org/stable/c/1143bfb9b05589797…
https://git.kernel.org/stable/c/f1a1bc8775b26345a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a3134fb09e0bc5bee76e13bf863173b86f21cf87 , < cc1a1dcb411fe224f48553cfdcdfe6e61395b69c (git) Affected: a3134fb09e0bc5bee76e13bf863173b86f21cf87 , < 5e5b85ea0f4bc484bfe4cc73ead51fa48d2366a0 (git) Affected: a3134fb09e0bc5bee76e13bf863173b86f21cf87 , < 995ee1e84e8db7fa5dcdde7dfe0bd7bb6f9bbb8c (git) Affected: a3134fb09e0bc5bee76e13bf863173b86f21cf87 , < f0ef883cae309bc5e8cdfcdbc1b4822732ce20a8 (git) Affected: a3134fb09e0bc5bee76e13bf863173b86f21cf87 , < 3565684309e54fa998ea27f37028d67cc3e1dff2 (git) Affected: a3134fb09e0bc5bee76e13bf863173b86f21cf87 , < 1143bfb9b055897975aeaea254da148e19524493 (git) Affected: a3134fb09e0bc5bee76e13bf863173b86f21cf87 , < f1a1bc8775b26345aba2be278118999e7f661d3d (git)
Linux	Linux	Affected: 4.19 Unaffected: 0 , < 4.19 (semver) Unaffected: 5.4.261 , ≤ 5.4.* (semver) Unaffected: 5.10.201 , ≤ 5.10.* (semver) Unaffected: 5.15.139 , ≤ 5.15.* (semver) Unaffected: 6.1.63 , ≤ 6.1.* (semver) Unaffected: 6.5.12 , ≤ 6.5.* (semver) Unaffected: 6.6.2 , ≤ 6.6.* (semver) Unaffected: 6.7 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
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                "id": "CVE-2023-52871",
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                  {
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                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-21T18:17:57.620656Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
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          "dateUpdated": "2024-08-02T23:11:36.044Z",
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    "cna": {
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              "version": "a3134fb09e0bc5bee76e13bf863173b86f21cf87",
              "versionType": "git"
            },
            {
              "lessThan": "f0ef883cae309bc5e8cdfcdbc1b4822732ce20a8",
              "status": "affected",
              "version": "a3134fb09e0bc5bee76e13bf863173b86f21cf87",
              "versionType": "git"
            },
            {
              "lessThan": "3565684309e54fa998ea27f37028d67cc3e1dff2",
              "status": "affected",
              "version": "a3134fb09e0bc5bee76e13bf863173b86f21cf87",
              "versionType": "git"
            },
            {
              "lessThan": "1143bfb9b055897975aeaea254da148e19524493",
              "status": "affected",
              "version": "a3134fb09e0bc5bee76e13bf863173b86f21cf87",
              "versionType": "git"
            },
            {
              "lessThan": "f1a1bc8775b26345aba2be278118999e7f661d3d",
              "status": "affected",
              "version": "a3134fb09e0bc5bee76e13bf863173b86f21cf87",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/soc/qcom/llcc-qcom.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.19"
            },
            {
              "lessThan": "4.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.201",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.139",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.63",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.7",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.261",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.201",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.139",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.63",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5.12",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.2",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: qcom: llcc: Handle a second device without data corruption\n\nUsually there is only one llcc device. But if there were a second, even\na failed probe call would modify the global drv_data pointer. So check\nif drv_data is valid before overwriting it."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable code is qcom_llcc_probe in the Qualcomm LLCC platform driver, reached only via device-tree platform device probe or local sysfs driver bind\u2014not via network packets or remote protocols.\nAC:L - Once a second matching LLCC platform device is instantiated, probe unconditionally overwrites the global drv_data pointer and the failure path sets ERR_PTR(-ENODEV), so corruption is deterministic with no race or luck required.\nPR:L - Exploitation requires local ability to cause a second matching platform device to probe (crafted DT/overlay or driver bind on Qualcomm platforms); this is scored as low privileges under the higher-severity rule rather than requiring fully privileged root-only admin.\nUI:N - No victim interaction is needed; the corruption occurs entirely during kernel probe of the second device and can fault when existing in-kernel clients use LLCC.\nS:U - Impact stays within the host kernel\u2019s security authority (driver state and system-cache configuration); there is no VM escape, IOMMU bypass, or other cross-authority boundary crossing.\nC:N - The bug overwrites a global driver pointer and can cause crashes or wrong MMIO programming, but it does not provide an information-disclosure or memory-read primitive.\nI:H - A second probe reliably corrupts the global drv_data used for all LLCC operations and can reprogram system-cache slice configuration registers, which is high-integrity impact as described in the fix (\u201cdata corruption\u201d).\nA:H - While the global points at a zeroed allocation mid-probe, clients such as a6xx_llc_activate call llcc_slice_activate and dereference NULL bcast_regmap/bitmap, causing a kernel oops/panic."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:11:45.186Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/cc1a1dcb411fe224f48553cfdcdfe6e61395b69c"
        },
        {
          "url": "https://git.kernel.org/stable/c/5e5b85ea0f4bc484bfe4cc73ead51fa48d2366a0"
        },
        {
          "url": "https://git.kernel.org/stable/c/995ee1e84e8db7fa5dcdde7dfe0bd7bb6f9bbb8c"
        },
        {
          "url": "https://git.kernel.org/stable/c/f0ef883cae309bc5e8cdfcdbc1b4822732ce20a8"
        },
        {
          "url": "https://git.kernel.org/stable/c/3565684309e54fa998ea27f37028d67cc3e1dff2"
        },
        {
          "url": "https://git.kernel.org/stable/c/1143bfb9b055897975aeaea254da148e19524493"
        },
        {
          "url": "https://git.kernel.org/stable/c/f1a1bc8775b26345aba2be278118999e7f661d3d"
        }
      ],
      "title": "soc: qcom: llcc: Handle a second device without data corruption",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52871",
    "datePublished": "2024-05-21T15:32:00.922Z",
    "dateReserved": "2024-05-21T15:19:24.263Z",
    "dateUpdated": "2026-08-05T09:11:45.186Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

FKIE_CVE-2023-52871

CVE-2023-52871 (GCVE-0-2023-52871)

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Sightings

Nomenclature

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