CVE-2024-49929 (GCVE-0-2024-49929)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-05-11 20:42
VLAI?
Title
wifi: iwlwifi: mvm: avoid NULL pointer dereference
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5b577a90fb3d86447ee86f8e0c6ddbd5da2ef8c9 , < cbc6fc9cfcde151ff5eadaefdc6155f99579384f (git)
Affected: 5b577a90fb3d86447ee86f8e0c6ddbd5da2ef8c9 , < 6dcadb2ed3b76623ab96e3e7fbeda1a374d01c28 (git)
Affected: 5b577a90fb3d86447ee86f8e0c6ddbd5da2ef8c9 , < cdbf51bfa4b0411820806777da36d93d49bc49a1 (git)
Affected: 5b577a90fb3d86447ee86f8e0c6ddbd5da2ef8c9 , < c0b4f5d94934c290479180868a32c15ba36a6d9e (git)
Affected: 5b577a90fb3d86447ee86f8e0c6ddbd5da2ef8c9 , < 557a6cd847645e667f3b362560bd7e7c09aac284 (git)
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Linux Linux Affected: 3.14
Unaffected: 0 , < 3.14 (semver)
Unaffected: 6.1.120 , ≤ 6.1.* (semver)
Unaffected: 6.6.55 , ≤ 6.6.* (semver)
Unaffected: 6.10.14 , ≤ 6.10.* (semver)
Unaffected: 6.11.3 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-49929\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:39:18.933944Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:39:21.998Z\"}}], \"cna\": {\"title\": \"wifi: iwlwifi: mvm: avoid NULL pointer dereference\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5b577a90fb3d86447ee86f8e0c6ddbd5da2ef8c9\", \"lessThan\": \"cbc6fc9cfcde151ff5eadaefdc6155f99579384f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5b577a90fb3d86447ee86f8e0c6ddbd5da2ef8c9\", \"lessThan\": \"6dcadb2ed3b76623ab96e3e7fbeda1a374d01c28\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5b577a90fb3d86447ee86f8e0c6ddbd5da2ef8c9\", \"lessThan\": \"cdbf51bfa4b0411820806777da36d93d49bc49a1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5b577a90fb3d86447ee86f8e0c6ddbd5da2ef8c9\", \"lessThan\": \"c0b4f5d94934c290479180868a32c15ba36a6d9e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5b577a90fb3d86447ee86f8e0c6ddbd5da2ef8c9\", \"lessThan\": \"557a6cd847645e667f3b362560bd7e7c09aac284\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/wireless/intel/iwlwifi/mvm/tx.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.14\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.14\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.120\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.55\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.14\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/wireless/intel/iwlwifi/mvm/tx.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/cbc6fc9cfcde151ff5eadaefdc6155f99579384f\"}, {\"url\": \"https://git.kernel.org/stable/c/6dcadb2ed3b76623ab96e3e7fbeda1a374d01c28\"}, {\"url\": \"https://git.kernel.org/stable/c/cdbf51bfa4b0411820806777da36d93d49bc49a1\"}, {\"url\": \"https://git.kernel.org/stable/c/c0b4f5d94934c290479180868a32c15ba36a6d9e\"}, {\"url\": \"https://git.kernel.org/stable/c/557a6cd847645e667f3b362560bd7e7c09aac284\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.120\", \"versionStartIncluding\": \"3.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.55\", \"versionStartIncluding\": \"3.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.14\", \"versionStartIncluding\": \"3.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.3\", \"versionStartIncluding\": \"3.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"3.14\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-21T09:13:23.151Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-49929\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-21T09:13:23.151Z\", \"dateReserved\": \"2024-10-21T12:17:06.039Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T18:01:52.450Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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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.