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

Vulnerability from cvelistv5 – Published: 2025-05-01 14:09 – Updated: 2026-05-11 19:07
VLAI
Title
pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map
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.
Severity
No CVSS data available.
Assigner
References
Impacted 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)
Create a notification for this product.
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)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pinctrl/devicetree.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "aaf552c5d53abe4659176e099575fe870d2e4768",
              "status": "affected",
              "version": "57291ce295c0aca738dd284c4a9c591c09ebee71",
              "versionType": "git"
            },
            {
              "lessThan": "b4d9f55cd38435358bc16d580612bc0d798d7b4c",
              "status": "affected",
              "version": "57291ce295c0aca738dd284c4a9c591c09ebee71",
              "versionType": "git"
            },
            {
              "lessThan": "a988dcd3dd9e691c5ccc3324b209688f3b5453e9",
              "status": "affected",
              "version": "57291ce295c0aca738dd284c4a9c591c09ebee71",
              "versionType": "git"
            },
            {
              "lessThan": "040f726fecd88121f3b95e70369785ad452dddf9",
              "status": "affected",
              "version": "57291ce295c0aca738dd284c4a9c591c09ebee71",
              "versionType": "git"
            },
            {
              "lessThan": "777430aa4ddccaa5accec6db90ffc1d47f00d471",
              "status": "affected",
              "version": "57291ce295c0aca738dd284c4a9c591c09ebee71",
              "versionType": "git"
            },
            {
              "lessThan": "97e5b508e96176f1a73888ed89df396d7041bfcb",
              "status": "affected",
              "version": "57291ce295c0aca738dd284c4a9c591c09ebee71",
              "versionType": "git"
            },
            {
              "lessThan": "5834a3a98cd266ad35a229923c0adbd0addc8d68",
              "status": "affected",
              "version": "57291ce295c0aca738dd284c4a9c591c09ebee71",
              "versionType": "git"
            },
            {
              "lessThan": "91d5c5060ee24fe8da88cd585bb43b843d2f0dce",
              "status": "affected",
              "version": "57291ce295c0aca738dd284c4a9c591c09ebee71",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/pinctrl/devicetree.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.5"
            },
            {
              "lessThan": "3.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.334",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.300",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.267",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.225",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.156",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.334",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.300",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.267",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.225",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.156",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.80",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.10",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "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",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49832",
      "date": "2026-05-25",
      "epss": "0.00067",
      "percentile": "0.2065"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49832\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:06.673\",\"lastModified\":\"2025-11-10T19:57:51.190\",\"vulnStatus\":\"Analyzed\",\"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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.5\",\"versionEndExcluding\":\"4.9.334\",\"matchCriteriaId\":\"BEC815C4-690B-4052-BCD6-FB52389084E6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.300\",\"matchCriteriaId\":\"424802D2-E9E7-48A9-AD6F-DF2227B3D83A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.267\",\"matchCriteriaId\":\"A5C69A12-68E2-400E-9A5A-375A673C8402\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.225\",\"matchCriteriaId\":\"94D21814-3051-4860-AB06-C7880A3D4933\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.156\",\"matchCriteriaId\":\"E2152F3D-E6D3-405D-B0BE-911B8B6E2EE6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.80\",\"matchCriteriaId\":\"51BBEF3B-79F5-4D4C-ADBA-F34DA0E2465C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.0.10\",\"matchCriteriaId\":\"64F9ADD1-3ADB-4D66-A00F-4A83010B05F0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7E331DA-1FB0-4DEC-91AC-7DA69D461C11\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"17F0B248-42CF-4AE6-A469-BB1BAE7F4705\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E2422816-0C14-4B5E-A1E6-A9D776E5C49B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"35B26BE4-43A6-4A36-A7F6-5B3F572D9186\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/040f726fecd88121f3b95e70369785ad452dddf9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5834a3a98cd266ad35a229923c0adbd0addc8d68\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/777430aa4ddccaa5accec6db90ffc1d47f00d471\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/91d5c5060ee24fe8da88cd585bb43b843d2f0dce\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/97e5b508e96176f1a73888ed89df396d7041bfcb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a988dcd3dd9e691c5ccc3324b209688f3b5453e9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/aaf552c5d53abe4659176e099575fe870d2e4768\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b4d9f55cd38435358bc16d580612bc0d798d7b4c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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

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.



Detection rules are retrieved from Rulezet.