FKIE_CVE-2022-49500

Vulnerability from fkie_nvd - Published: 2025-02-26 07:01 - Updated: 2026-06-17 05:18
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: wl1251: dynamically allocate memory used for DMA With introduction of vmap'ed stacks, stack parameters can no longer be used for DMA and now leads to kernel panic. It happens at several places for the wl1251 (e.g. when accessed through SDIO) making it unuseable on e.g. the OpenPandora. We solve this by allocating temporary buffers or use wl1251_read32(). Tested on v5.18-rc5 with OpenPandora.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/454744754cbf2c21b3fc7344e46e10bee2768094Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/da03bbfbf5acd1ab0b074617e865ad1e8a5779efPatch
Impacted products
Vendor Product Version
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ti/wl1251/event.c",
            "drivers/net/wireless/ti/wl1251/io.c",
            "drivers/net/wireless/ti/wl1251/tx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "da03bbfbf5acd1ab0b074617e865ad1e8a5779ef",
              "status": "affected",
              "version": "a1c510d0adc604bb143c86052bc5be48cbcfa17c",
              "versionType": "git"
            },
            {
              "lessThan": "454744754cbf2c21b3fc7344e46e10bee2768094",
              "status": "affected",
              "version": "a1c510d0adc604bb143c86052bc5be48cbcfa17c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ti/wl1251/event.c",
            "drivers/net/wireless/ti/wl1251/io.c",
            "drivers/net/wireless/ti/wl1251/tx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8E122216-2E9E-4B3E-B7B8-D575A45BA3C2",
              "versionEndExcluding": "5.18.3",
              "versionStartIncluding": "5.18",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwl1251: dynamically allocate memory used for DMA\n\nWith introduction of vmap\u0027ed stacks, stack parameters can no\nlonger be used for DMA and now leads to kernel panic.\n\nIt happens at several places for the wl1251 (e.g. when\naccessed through SDIO) making it unuseable on e.g. the\nOpenPandora.\n\nWe solve this by allocating temporary buffers or use wl1251_read32().\n\nTested on v5.18-rc5 with OpenPandora."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wl1251: asignar din\u00e1micamente memoria utilizada para DMA Con la introducci\u00f3n de pilas vmap\u0027ed, los par\u00e1metros de pila ya no se pueden utilizar para DMA y ahora provoca un p\u00e1nico del kernel. Sucede en varios lugares para wl1251 (por ejemplo, cuando se accede a trav\u00e9s de SDIO), lo que lo hace inutilizable en, por ejemplo, OpenPandora. Solucionamos esto asignando b\u00faferes temporales o utilizando wl1251_read32(). Probado en v5.18-rc5 con OpenPandora."
    }
  ],
  "id": "CVE-2022-49500",
  "lastModified": "2026-06-17T05:18:15.250",
  "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"
      }
    ]
  },
  "published": "2025-02-26T07:01:26.163",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/454744754cbf2c21b3fc7344e46e10bee2768094"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/da03bbfbf5acd1ab0b074617e865ad1e8a5779ef"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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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.

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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.
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