CVE-2024-36921 (GCVE-0-2024-36921)

Vulnerability from cvelistv5 – Published: 2024-05-30 15:29 – Updated: 2026-08-05 11:32
VLAI
Title
wifi: iwlwifi: mvm: guard against invalid STA ID on removal
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: guard against invalid STA ID on removal Guard against invalid station IDs in iwl_mvm_mld_rm_sta_id as that would result in out-of-bounds array accesses. This prevents issues should the driver get into a bad state during error handling.
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 006c152ac9e56ac7871efa995854c3ff8cf6915a , < 94f80a8ec15e238b78521f20f8afaed60521a294 (git)
Affected: 006c152ac9e56ac7871efa995854c3ff8cf6915a , < fab21d220017daa5fd8a3d788ff25ccfecfaae2f (git)
Affected: 006c152ac9e56ac7871efa995854c3ff8cf6915a , < 17f64517bf5c26af56b6c3566273aad6646c3c4f (git)
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Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.6.31 , ≤ 6.6.* (semver)
Unaffected: 6.8.10 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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Wi-Fi driver reachability is Adjacent, consistent with other iwlwifi mvm CVEs.\\nAC:L - Reaching the invalid-STA-ID removal requires the driver to be in an error/teardown state, but an adjacent attacker can drive repeated PASN responder add/remove churn and induce firmware command failures and FW restarts, so the triggering conditions are within attacker influence rather than beyond it.\\nPR:N - PASN ranging is negotiated with unassociated peers before any credentials are established, so an adjacent 802.11 device needs no account or privilege on the target; FTM responder mode being enabled is an environmental precondition, not an attacker privilege.\\nUI:N - The FTM responder teardown and firmware-restart paths run autonomously in the driver; no action by a local user or administrator is needed once the responder is configured.\\nS:U - The out-of-bounds accesses corrupt memory inside the kernel\u0027s own iwlwifi driver state, staying entirely within the kernel security authority with no crossing into a hypervisor, IOMMU, or sandbox boundary.\\nC:H - The bug performs an out-of-bounds read of fw_id_to_mac_id[0xFF] and two out-of-bounds writes that silently corrupt live struct iwl_mvm state adjacent to the RCU firmware-station tables; such kernel memory corruption around pointer tables is leverageable toward disclosure of kernel memory.\\nI:H - Two out-of-bounds writes zero 8 bytes each ~2 KB past the fw_id_to_mac_id and fw_id_to_link_sta arrays, overwriting unrelated live driver fields inside struct iwl_mvm, and an invalid station ID is fed to firmware \\u2014 an out-of-bounds write is a memory-corruption integrity impact.\\nA:H - Nulling arbitrary driver fields leads to later NULL dereferences and oopses, the stale OOB-read value causes a STA_REMOVE_CMD with sta_id 0xFF to be sent to firmware which can assert and force a device reset, and the post-fix WARN_ON confirms this is a fatal-state condition.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"006c152ac9e56ac7871efa995854c3ff8cf6915a\", \"lessThan\": \"94f80a8ec15e238b78521f20f8afaed60521a294\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"006c152ac9e56ac7871efa995854c3ff8cf6915a\", \"lessThan\": \"fab21d220017daa5fd8a3d788ff25ccfecfaae2f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"006c152ac9e56ac7871efa995854c3ff8cf6915a\", \"lessThan\": \"17f64517bf5c26af56b6c3566273aad6646c3c4f\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.4\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.4\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.6.31\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/94f80a8ec15e238b78521f20f8afaed60521a294\"}, {\"url\": \"https://git.kernel.org/stable/c/fab21d220017daa5fd8a3d788ff25ccfecfaae2f\"}, {\"url\": \"https://git.kernel.org/stable/c/17f64517bf5c26af56b6c3566273aad6646c3c4f\"}], \"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: guard against invalid STA ID on removal\\n\\nGuard against invalid station IDs in iwl_mvm_mld_rm_sta_id as that would\\nresult in out-of-bounds array accesses. This prevents issues should the\\ndriver get into a bad state during error handling.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.31\", \"versionStartIncluding\": \"6.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.10\", \"versionStartIncluding\": \"6.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"6.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T11:32:05.044Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-36921\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:32:05.044Z\", \"dateReserved\": \"2024-05-30T15:25:07.068Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-30T15:29:15.696Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.