CVE-2024-57995 (GCVE-0-2024-57995)

Vulnerability from cvelistv5 – Published: 2025-02-27 02:07 – Updated: 2026-08-05 11:47
VLAI
Title
wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev() In ath12k_mac_assign_vif_to_vdev(), if arvif is created on a different radio, it gets deleted from that radio through a call to ath12k_mac_unassign_link_vif(). This action frees the arvif pointer. Subsequently, there is a check involving arvif, which will result in a read-after-free scenario. Fix this by moving this check after arvif is again assigned via call to ath12k_mac_assign_link_vif(). Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: b5068bc9180d06a5ac242b0f9263047c14f86211 , < 57100b87c77818cb0d582a92e5cb32fff85c757d (git)
Affected: b5068bc9180d06a5ac242b0f9263047c14f86211 , < f3a95a312419e4f1e992525917da9dbcd247038f (git)
Affected: b5068bc9180d06a5ac242b0f9263047c14f86211 , < 5a10971c7645a95f5d5dc23c26fbac4bf61801d0 (git)
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Linux Linux Affected: 6.10
Unaffected: 0 , < 6.10 (semver)
Unaffected: 6.12.57 , ≤ 6.12.* (semver)
Unaffected: 6.13.2 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
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This action frees the arvif pointer.\\nSubsequently, there is a check involving arvif, which will result in a\\nread-after-free scenario.\\n\\nFix this by moving this check after arvif is again assigned via call to\\nath12k_mac_assign_link_vif().\\n\\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: ath12k: correcci\u00f3n del puntero de lectura despu\u00e9s de la liberaci\u00f3n en ath12k_mac_assign_vif_to_vdev() En ath12k_mac_assign_vif_to_vdev(), si se crea arvif en una radio diferente, se elimina de esa radio mediante una llamada a ath12k_mac_unassign_link_vif(). Esta acci\u00f3n libera el puntero arvif. Posteriormente, hay una comprobaci\u00f3n que involucra arvif, lo que dar\u00e1 como resultado un escenario de lectura despu\u00e9s de la liberaci\u00f3n. Corrija esto moviendo esta comprobaci\u00f3n despu\u00e9s de que arvif se asigne nuevamente mediante una llamada a ath12k_mac_assign_link_vif(). 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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-57995\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:31:23.714588Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T16:54:46.792Z\"}}], \"cna\": {\"title\": \"wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()\", \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 8.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"AV:A - The vulnerable code is a mac80211 chanctx-assignment op driven by 802.11 events \\u2014 cross-radio scanning, band steering/BSS-transition requests, channel-switch announcements and MLO link reconfiguration \\u2014 so an attacker within WiFi range (rogue/evil-twin AP or frame injection) can drive the radio migration that frees the arvif.\\nAC:L - The attacker can repeatedly force band/radio migrations of the link vif via beacons, CSA and MLO link reconfiguration, and the freeing plus the stale read happen deterministically on that path with no race to win; heap grooming to control the reallocated object is standard.\\nPR:N - An adjacent 802.11 attacker needs no credentials on the target \\u2014 background scans and auto-connect to a spoofed known SSID reach the path pre-authentication, and no local account or capability is required.\\nUI:N - Background scanning across radios and auto-reconnect to saved networks occur without any user action, and CSA/band-steering frames are processed automatically by the connected station.\\nS:U - The freed object, the corrupted structures and the resulting code execution all reside in the kernel\u0027s own security authority; no VM, IOMMU or sandbox boundary is crossed.\\nC:H - Taking the `goto flush` branch runs `ath12k_mac_vif_cache_flush()` on the freed arvif, using freed bytes as `arvif-\u003elink_id` to index `ahvif-\u003ecache[]` and returning `arvif-\u003ear` from freed memory for the caller to dereference \\u2014 an out-of-bounds/arbitrary read primitive over kernel memory.\\nI:H - The same use-after-free path performs writes through freed-memory-derived pointers (`ath12k_mac_bss_info_changed()`, `ath12k_mac_conf_tx()`, key-cache flush, and the caller\u0027s `arvif-\u003epunct_bitmap` store), giving a heap-spray-controlled write primitive suitable for control-flow hijack.\\nA:H - Dereferencing freed and reallocated memory as pointers reliably produces a kernel oops/panic even when not exploited further, taking down the affected system.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"b5068bc9180d06a5ac242b0f9263047c14f86211\", \"lessThan\": \"57100b87c77818cb0d582a92e5cb32fff85c757d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b5068bc9180d06a5ac242b0f9263047c14f86211\", \"lessThan\": \"f3a95a312419e4f1e992525917da9dbcd247038f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b5068bc9180d06a5ac242b0f9263047c14f86211\", \"lessThan\": \"5a10971c7645a95f5d5dc23c26fbac4bf61801d0\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/wireless/ath/ath12k/mac.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.10\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.10\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.12.57\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.13.*\"}, {\"status\": \"unaffected\", \"version\": \"6.14\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/wireless/ath/ath12k/mac.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/57100b87c77818cb0d582a92e5cb32fff85c757d\"}, {\"url\": \"https://git.kernel.org/stable/c/f3a95a312419e4f1e992525917da9dbcd247038f\"}, {\"url\": \"https://git.kernel.org/stable/c/5a10971c7645a95f5d5dc23c26fbac4bf61801d0\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()\\n\\nIn ath12k_mac_assign_vif_to_vdev(), if arvif is created on a different\\nradio, it gets deleted from that radio through a call to\\nath12k_mac_unassign_link_vif(). This action frees the arvif pointer.\\nSubsequently, there is a check involving arvif, which will result in a\\nread-after-free scenario.\\n\\nFix this by moving this check after arvif is again assigned via call to\\nath12k_mac_assign_link_vif().\\n\\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.57\", \"versionStartIncluding\": \"6.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13.2\", \"versionStartIncluding\": \"6.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.14\", \"versionStartIncluding\": \"6.10\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T11:47:14.855Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-57995\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:47:14.855Z\", \"dateReserved\": \"2025-02-27T02:04:28.914Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-27T02:07:16.163Z\", \"assignerShortName\": \"Linux\"}",
      "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

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.