FKIE_CVE-2024-49929

Vulnerability from fkie_nvd - Published: 2024-10-21 18:15 - Updated: 2025-11-03 21:16
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: wifi: iwlwifi: mvm: avoid NULL pointer dereference iwl_mvm_tx_skb_sta() and iwl_mvm_tx_mpdu() verify that the mvmvsta pointer is not NULL. It retrieves this pointer using iwl_mvm_sta_from_mac80211, which is dereferencing the ieee80211_sta pointer. If sta is NULL, iwl_mvm_sta_from_mac80211 will dereference a NULL pointer. Fix this by checking the sta pointer before retrieving the mvmsta from it. If sta is not NULL, then mvmsta isn't either.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/557a6cd847645e667f3b362560bd7e7c09aac284Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6dcadb2ed3b76623ab96e3e7fbeda1a374d01c28Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c0b4f5d94934c290479180868a32c15ba36a6d9ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cbc6fc9cfcde151ff5eadaefdc6155f99579384f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cdbf51bfa4b0411820806777da36d93d49bc49a1Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8B527B5F-BDDA-424E-932E-16FCAAB575E2",
              "versionEndExcluding": "6.6.55",
              "vulnerable": true
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: avoid NULL pointer dereference\n\niwl_mvm_tx_skb_sta() and iwl_mvm_tx_mpdu() verify that the mvmvsta\npointer is not NULL.\nIt retrieves this pointer using iwl_mvm_sta_from_mac80211, which is\ndereferencing the ieee80211_sta pointer.\nIf sta is NULL, iwl_mvm_sta_from_mac80211 will dereference a NULL\npointer.\nFix this by checking the sta pointer before retrieving the mvmsta\nfrom it. If sta is not NULL, then mvmsta isn\u0027t either."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: iwlwifi: mvm: evitar la desreferencia del puntero NULL iwl_mvm_tx_skb_sta() e iwl_mvm_tx_mpdu() verifican que el puntero mvmvsta no sea NULL. Recupera este puntero utilizando iwl_mvm_sta_from_mac80211, que est\u00e1 desreferenciando el puntero ieee80211_sta. Si sta es NULL, iwl_mvm_sta_from_mac80211 desreferenciar\u00e1 un puntero NULL. Solucione esto comprobando el puntero sta antes de recuperar el mvmsta de \u00e9l. Si sta no es NULL, entonces mvmsta tampoco lo es."
    }
  ],
  "id": "CVE-2024-49929",
  "lastModified": "2025-11-03T21:16:37.693",
  "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": "2024-10-21T18:15:14.907",
  "references": [
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      "tags": [
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    },
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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