Vulnerability-Lookup

FKIE_CVE-2022-49832

Vulnerability from fkie_nvd - Published: 2025-05-01 15:16 - Updated: 2026-06-17 05:19

Severity

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

Summary

In the Linux kernel, the following vulnerability has been resolved: pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map Here is the BUG report by KASAN about null pointer dereference: BUG: KASAN: null-ptr-deref in strcmp+0x2e/0x50 Read of size 1 at addr 0000000000000000 by task python3/2640 Call Trace: strcmp __of_find_property of_find_property pinctrl_dt_to_map kasprintf() would return NULL pointer when kmalloc() fail to allocate. So directly return ENOMEM, if kasprintf() return NULL pointer.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/040f726fecd88121f3b95e70369785ad452dddf9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5834a3a98cd266ad35a229923c0adbd0addc8d68	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/777430aa4ddccaa5accec6db90ffc1d47f00d471	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/91d5c5060ee24fe8da88cd585bb43b843d2f0dce	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/97e5b508e96176f1a73888ed89df396d7041bfcb	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a988dcd3dd9e691c5ccc3324b209688f3b5453e9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/aaf552c5d53abe4659176e099575fe870d2e4768	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b4d9f55cd38435358bc16d580612bc0d798d7b4c	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.1
linux	linux_kernel	6.1
linux	linux_kernel	6.1
linux	linux_kernel	6.1
linux	linux_kernel	6.1

JSON

To clipboard

{
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map\n\nHere is the BUG report by KASAN about null pointer dereference:\n\nBUG: KASAN: null-ptr-deref in strcmp+0x2e/0x50\nRead of size 1 at addr 0000000000000000 by task python3/2640\nCall Trace:\n strcmp\n __of_find_property\n of_find_property\n pinctrl_dt_to_map\n\nkasprintf() would return NULL pointer when kmalloc() fail to allocate.\nSo directly return ENOMEM, if kasprintf() return NULL pointer."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: pinctrl: devicetree: correcci\u00f3n de la desreferencia de puntero nulo en pinctrl_dt_to_map Aqu\u00ed est\u00e1 el informe de ERROR de KASAN sobre la desreferencia de puntero nulo: ERROR: KASAN: null-ptr-deref en strcmp+0x2e/0x50 Lectura de tama\u00f1o 1 en la direcci\u00f3n 0000000000000000 por la tarea python3/2640 Rastreo de llamadas: strcmp __of_find_property of_find_property pinctrl_dt_to_map kasprintf() devolver\u00eda un puntero NULL cuando kmalloc() no pudiera asignar. Por lo tanto, devuelve directamente ENOMEM, si kasprintf() devuelve un puntero NULL."
    }
  ],
  "id": "CVE-2022-49832",
  "lastModified": "2026-06-17T05:19:15.077",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  "published": "2025-05-01T15:16:06.673",
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  "vulnStatus": "Analyzed",
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          "lang": "en",
          "value": "CWE-476"
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      "source": "nvd@nist.gov",
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    }
  ]
}

CVE-2022-49832 (GCVE-0-2022-49832)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:09 – Updated: 2026-05-11 19:07

Title

pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map

Summary

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7056 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/aaf552c5d53abe465…
https://git.kernel.org/stable/c/b4d9f55cd38435358…
https://git.kernel.org/stable/c/a988dcd3dd9e691c5…
https://git.kernel.org/stable/c/040f726fecd88121f…
https://git.kernel.org/stable/c/777430aa4ddccaa5a…
https://git.kernel.org/stable/c/97e5b508e96176f1a…
https://git.kernel.org/stable/c/5834a3a98cd266ad3…
https://git.kernel.org/stable/c/91d5c5060ee24fe8d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 57291ce295c0aca738dd284c4a9c591c09ebee71 , < aaf552c5d53abe4659176e099575fe870d2e4768 (git) Affected: 57291ce295c0aca738dd284c4a9c591c09ebee71 , < b4d9f55cd38435358bc16d580612bc0d798d7b4c (git) Affected: 57291ce295c0aca738dd284c4a9c591c09ebee71 , < a988dcd3dd9e691c5ccc3324b209688f3b5453e9 (git) Affected: 57291ce295c0aca738dd284c4a9c591c09ebee71 , < 040f726fecd88121f3b95e70369785ad452dddf9 (git) Affected: 57291ce295c0aca738dd284c4a9c591c09ebee71 , < 777430aa4ddccaa5accec6db90ffc1d47f00d471 (git) Affected: 57291ce295c0aca738dd284c4a9c591c09ebee71 , < 97e5b508e96176f1a73888ed89df396d7041bfcb (git) Affected: 57291ce295c0aca738dd284c4a9c591c09ebee71 , < 5834a3a98cd266ad35a229923c0adbd0addc8d68 (git) Affected: 57291ce295c0aca738dd284c4a9c591c09ebee71 , < 91d5c5060ee24fe8da88cd585bb43b843d2f0dce (git)
Linux	Linux	Affected: 3.5 Unaffected: 0 , < 3.5 (semver) Unaffected: 4.9.334 , ≤ 4.9.* (semver) Unaffected: 4.14.300 , ≤ 4.14.* (semver) Unaffected: 4.19.267 , ≤ 4.19.* (semver) Unaffected: 5.4.225 , ≤ 5.4.* (semver) Unaffected: 5.10.156 , ≤ 5.10.* (semver) Unaffected: 5.15.80 , ≤ 5.15.* (semver) Unaffected: 6.0.10 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pinctrl/devicetree.c"
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                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
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                  "versionEndExcluding": "5.4.225",
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                  "vulnerable": true
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                  "vulnerable": true
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                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.0.10",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map\n\nHere is the BUG report by KASAN about null pointer dereference:\n\nBUG: KASAN: null-ptr-deref in strcmp+0x2e/0x50\nRead of size 1 at addr 0000000000000000 by task python3/2640\nCall Trace:\n strcmp\n __of_find_property\n of_find_property\n pinctrl_dt_to_map\n\nkasprintf() would return NULL pointer when kmalloc() fail to allocate.\nSo directly return ENOMEM, if kasprintf() return NULL pointer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:07:38.166Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/aaf552c5d53abe4659176e099575fe870d2e4768"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4d9f55cd38435358bc16d580612bc0d798d7b4c"
        },
        {
          "url": "https://git.kernel.org/stable/c/a988dcd3dd9e691c5ccc3324b209688f3b5453e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/040f726fecd88121f3b95e70369785ad452dddf9"
        },
        {
          "url": "https://git.kernel.org/stable/c/777430aa4ddccaa5accec6db90ffc1d47f00d471"
        },
        {
          "url": "https://git.kernel.org/stable/c/97e5b508e96176f1a73888ed89df396d7041bfcb"
        },
        {
          "url": "https://git.kernel.org/stable/c/5834a3a98cd266ad35a229923c0adbd0addc8d68"
        },
        {
          "url": "https://git.kernel.org/stable/c/91d5c5060ee24fe8da88cd585bb43b843d2f0dce"
        }
      ],
      "title": "pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49832",
    "datePublished": "2025-05-01T14:09:50.435Z",
    "dateReserved": "2025-05-01T14:05:17.228Z",
    "dateUpdated": "2026-05-11T19:07:38.166Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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