fkie_nvd - fkie_cve-2022-50533

fkie_cve-2022-50533

Vulnerability from fkie_nvd

Published

2025-10-07 16:15

Modified

2025-10-08 19:38

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: mlme: fix null-ptr deref on failed assoc If association to an AP without a link 0 fails, then we crash in tracing because it assumes that either ap_mld_addr or link 0 BSS is valid, since we clear sdata->vif.valid_links and then don't add the ap_mld_addr to the struct. Since we clear also sdata->vif.cfg.ap_addr, keep a local copy of it and assign it earlier, before clearing valid_links, to fix this.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/78a6a43aaf87180ec7425a2a90468e1b4d09a1ec
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bb7743955a929e44b308cc3f63f8cc03873c1bee
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c695dfba8dfb82dc7ace4f22be088916cbf621ca

Impacted products

	Vendor	Product	Version

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: mlme: fix null-ptr deref on failed assoc\n\nIf association to an AP without a link 0 fails, then we crash in\ntracing because it assumes that either ap_mld_addr or link 0 BSS\nis valid, since we clear sdata-\u003evif.valid_links and then don\u0027t\nadd the ap_mld_addr to the struct.\n\nSince we clear also sdata-\u003evif.cfg.ap_addr, keep a local copy of\nit and assign it earlier, before clearing valid_links, to fix\nthis."
    }
  ],
  "id": "CVE-2022-50533",
  "lastModified": "2025-10-08T19:38:32.610",
  "metrics": {},
  "published": "2025-10-07T16:15:37.403",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/78a6a43aaf87180ec7425a2a90468e1b4d09a1ec"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bb7743955a929e44b308cc3f63f8cc03873c1bee"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c695dfba8dfb82dc7ace4f22be088916cbf621ca"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2022-50533 (GCVE-0-2022-50533)

Vulnerability from cvelistv5

Published

2025-10-07 15:19

Modified

2025-10-07 15:19

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: mlme: fix null-ptr deref on failed assoc If association to an AP without a link 0 fails, then we crash in tracing because it assumes that either ap_mld_addr or link 0 BSS is valid, since we clear sdata->vif.valid_links and then don't add the ap_mld_addr to the struct. Since we clear also sdata->vif.cfg.ap_addr, keep a local copy of it and assign it earlier, before clearing valid_links, to fix this.

References

URL

Tags

	https://git.kernel.org/stable/c/c695dfba8dfb82dc7ace4f22be088916cbf621ca
	https://git.kernel.org/stable/c/bb7743955a929e44b308cc3f63f8cc03873c1bee
	https://git.kernel.org/stable/c/78a6a43aaf87180ec7425a2a90468e1b4d09a1ec

Impacted products

Vendor

Product

Version

Version: 81151ce462e533551f3284bfdb8e0f461c9220e6
Version: 81151ce462e533551f3284bfdb8e0f461c9220e6
Version: 81151ce462e533551f3284bfdb8e0f461c9220e6

Version: 6.0

Show details on NVD website

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/mlme.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c695dfba8dfb82dc7ace4f22be088916cbf621ca",
              "status": "affected",
              "version": "81151ce462e533551f3284bfdb8e0f461c9220e6",
              "versionType": "git"
            },
            {
              "lessThan": "bb7743955a929e44b308cc3f63f8cc03873c1bee",
              "status": "affected",
              "version": "81151ce462e533551f3284bfdb8e0f461c9220e6",
              "versionType": "git"
            },
            {
              "lessThan": "78a6a43aaf87180ec7425a2a90468e1b4d09a1ec",
              "status": "affected",
              "version": "81151ce462e533551f3284bfdb8e0f461c9220e6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/mlme.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "lessThan": "6.0",
              "status": "unaffected",
              "version": "0",
              "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": "6.0.16",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.2",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: mlme: fix null-ptr deref on failed assoc\n\nIf association to an AP without a link 0 fails, then we crash in\ntracing because it assumes that either ap_mld_addr or link 0 BSS\nis valid, since we clear sdata-\u003evif.valid_links and then don\u0027t\nadd the ap_mld_addr to the struct.\n\nSince we clear also sdata-\u003evif.cfg.ap_addr, keep a local copy of\nit and assign it earlier, before clearing valid_links, to fix\nthis."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-07T15:19:23.277Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c695dfba8dfb82dc7ace4f22be088916cbf621ca"
        },
        {
          "url": "https://git.kernel.org/stable/c/bb7743955a929e44b308cc3f63f8cc03873c1bee"
        },
        {
          "url": "https://git.kernel.org/stable/c/78a6a43aaf87180ec7425a2a90468e1b4d09a1ec"
        }
      ],
      "title": "wifi: mac80211: mlme: fix null-ptr deref on failed assoc",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50533",
    "datePublished": "2025-10-07T15:19:23.277Z",
    "dateReserved": "2025-10-07T15:15:38.664Z",
    "dateUpdated": "2025-10-07T15:19:23.277Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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