CVE-2022-50358 (GCVE-0-2022-50358)

Vulnerability from cvelistv5 – Published: 2025-09-17 14:56 – Updated: 2026-05-11 19:17
VLAI
Title
brcmfmac: return error when getting invalid max_flowrings from dongle
Summary
In the Linux kernel, the following vulnerability has been resolved: brcmfmac: return error when getting invalid max_flowrings from dongle When firmware hit trap at initialization, host will read abnormal max_flowrings number from dongle, and it will cause kernel panic when doing iowrite to initialize dongle ring. To detect this error at early stage, we directly return error when getting invalid max_flowrings(>256).
Severity
4.2 (Medium)
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:32 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9e37f045d5e7f33450515f237c2f6f6bfee137dd , < 3cc9299036bdb647408e11e41de3eb1ff6d428cd (git)
Affected: 9e37f045d5e7f33450515f237c2f6f6bfee137dd , < 2e8bb402b060a6c22160de3d72cee057698177c8 (git)
Affected: 9e37f045d5e7f33450515f237c2f6f6bfee137dd , < 10c4b63d09a5b0ebf1b61af1dae7f25555cf58b6 (git)
Affected: 9e37f045d5e7f33450515f237c2f6f6bfee137dd , < 87f126b25fa8562196f0f4c0aa46a446026199bf (git)
Affected: 9e37f045d5e7f33450515f237c2f6f6bfee137dd , < 200347eb3b2608cc8b54c13dd1d5e03809ba2eb2 (git)
Affected: 9e37f045d5e7f33450515f237c2f6f6bfee137dd , < 2aca4f3734bd717e04943ddf340d49ab62299a00 (git)
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Linux Linux Affected: 3.17
Unaffected: 0 , < 3.17 (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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      "title": "SUSE CVE CVE-2022-50358",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50358.json",
      "version": "36"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "HIGH",
                  "attackVector": "PHYSICAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 4.2,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "NONE",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "NONE",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2022-50358",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-01-14T18:32:40.491291Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "description": "CWE-noinfo Not enough information",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-01-14T18:32:36.311Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "3cc9299036bdb647408e11e41de3eb1ff6d428cd",
                  "status": "affected",
                  "version": "9e37f045d5e7f33450515f237c2f6f6bfee137dd",
                  "versionType": "git"
                },
                {
                  "lessThan": "2e8bb402b060a6c22160de3d72cee057698177c8",
                  "status": "affected",
                  "version": "9e37f045d5e7f33450515f237c2f6f6bfee137dd",
                  "versionType": "git"
                },
                {
                  "lessThan": "10c4b63d09a5b0ebf1b61af1dae7f25555cf58b6",
                  "status": "affected",
                  "version": "9e37f045d5e7f33450515f237c2f6f6bfee137dd",
                  "versionType": "git"
                },
                {
                  "lessThan": "87f126b25fa8562196f0f4c0aa46a446026199bf",
                  "status": "affected",
                  "version": "9e37f045d5e7f33450515f237c2f6f6bfee137dd",
                  "versionType": "git"
                },
                {
                  "lessThan": "200347eb3b2608cc8b54c13dd1d5e03809ba2eb2",
                  "status": "affected",
                  "version": "9e37f045d5e7f33450515f237c2f6f6bfee137dd",
                  "versionType": "git"
                },
                {
                  "lessThan": "2aca4f3734bd717e04943ddf340d49ab62299a00",
                  "status": "affected",
                  "version": "9e37f045d5e7f33450515f237c2f6f6bfee137dd",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "3.17"
                },
                {
                  "lessThan": "3.17",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.229",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.163",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.86",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.0.*",
                  "status": "unaffected",
                  "version": "6.0.16",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.2",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.2",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.229",
                      "versionStartIncluding": "3.17",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.163",
                      "versionStartIncluding": "3.17",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.86",
                      "versionStartIncluding": "3.17",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.0.16",
                      "versionStartIncluding": "3.17",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.2",
                      "versionStartIncluding": "3.17",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.2",
                      "versionStartIncluding": "3.17",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbrcmfmac: return error when getting invalid max_flowrings from dongle\n\nWhen firmware hit trap at initialization, host will read abnormal\nmax_flowrings number from dongle, and it will cause kernel panic when\ndoing iowrite to initialize dongle ring.\nTo detect this error at early stage, we directly return error when getting\ninvalid max_flowrings(\u003e256)."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-12-23T13:29:02.746Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/3cc9299036bdb647408e11e41de3eb1ff6d428cd"
            },
            {
              "url": "https://git.kernel.org/stable/c/2e8bb402b060a6c22160de3d72cee057698177c8"
            },
            {
              "url": "https://git.kernel.org/stable/c/10c4b63d09a5b0ebf1b61af1dae7f25555cf58b6"
            },
            {
              "url": "https://git.kernel.org/stable/c/87f126b25fa8562196f0f4c0aa46a446026199bf"
            },
            {
              "url": "https://git.kernel.org/stable/c/200347eb3b2608cc8b54c13dd1d5e03809ba2eb2"
            },
            {
              "url": "https://git.kernel.org/stable/c/2aca4f3734bd717e04943ddf340d49ab62299a00"
            }
          ],
          "title": "brcmfmac: return error when getting invalid max_flowrings from dongle",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-50358",
        "datePublished": "2025-09-17T14:56:10.688Z",
        "dateReserved": "2025-09-17T14:53:06.994Z",
        "dateUpdated": "2026-01-14T18:33:01.929Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.
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  • 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.



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.