Vulnerability-Lookup

GHSA-38H5-7V7X-V6PW

Vulnerability from github – Published: 2025-05-20 18:30 – Updated: 2025-11-17 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi

In certain cases, hardware might provide packets with a length greater than the maximum native Wi-Fi header length. This can lead to accessing and modifying fields in the header within the ath12k_dp_rx_h_undecap_nwifi function for DP_RX_DECAP_TYPE_NATIVE_WIFI decap type and potentially resulting in invalid data access and memory corruption.

Add a sanity check before processing the SKB to prevent invalid data access in the undecap native Wi-Fi function for the DP_RX_DECAP_TYPE_NATIVE_WIFI decap type.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37943"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-20T16:15:32Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi\n\nIn certain cases, hardware might provide packets with a\nlength greater than the maximum native Wi-Fi header length.\nThis can lead to accessing and modifying fields in the header\nwithin the ath12k_dp_rx_h_undecap_nwifi function for\nDP_RX_DECAP_TYPE_NATIVE_WIFI decap type and\npotentially resulting in invalid data access and memory corruption.\n\nAdd a sanity check before processing the SKB to prevent invalid\ndata access in the undecap native Wi-Fi function for the\nDP_RX_DECAP_TYPE_NATIVE_WIFI decap type.\n\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1",
  "id": "GHSA-38h5-7v7x-v6pw",
  "modified": "2025-11-17T15:30:32Z",
  "published": "2025-05-20T18:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37943"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3abe15e756481c45f6acba3d476cb3ca4afc3b61"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/50be1fb76556e80af9f5da80f28168b6c71bce58"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ee653194ddb83674913fd2727b8ecfae0597ade"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f1d986da5c6abb75ffe4d0d325fc9b341c41a1c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a0dddfb30f120db3851627935851d262e4e7acb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-37943 (GCVE-0-2025-37943)

Vulnerability from cvelistv5 – Published: 2025-05-20 15:58 – Updated: 2026-08-05 11:58

Title

wifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi In certain cases, hardware might provide packets with a length greater than the maximum native Wi-Fi header length. This can lead to accessing and modifying fields in the header within the ath12k_dp_rx_h_undecap_nwifi function for DP_RX_DECAP_TYPE_NATIVE_WIFI decap type and potentially resulting in invalid data access and memory corruption. Add a sanity check before processing the SKB to prevent invalid data access in the undecap native Wi-Fi function for the DP_RX_DECAP_TYPE_NATIVE_WIFI decap type. 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

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7034 records in the last 180 days details

References

5 references

URL	Tags
https://git.kernel.org/stable/c/7f1d986da5c6abb75…
https://git.kernel.org/stable/c/3abe15e756481c45f…
https://git.kernel.org/stable/c/6ee653194ddb83674…
https://git.kernel.org/stable/c/50be1fb76556e80af…
https://git.kernel.org/stable/c/9a0dddfb30f120db3…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 7f1d986da5c6abb75ffe4d0d325fc9b341c41a1c (git) Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 3abe15e756481c45f6acba3d476cb3ca4afc3b61 (git) Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 6ee653194ddb83674913fd2727b8ecfae0597ade (git) Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 50be1fb76556e80af9f5da80f28168b6c71bce58 (git) Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 9a0dddfb30f120db3851627935851d262e4e7acb (git)
Linux	Linux	Affected: 6.3 Unaffected: 0 , < 6.3 (semver) Unaffected: 6.6.88 , ≤ 6.6.* (semver) Unaffected: 6.12.24 , ≤ 6.12.* (semver) Unaffected: 6.13.12 , ≤ 6.13.* (semver) Unaffected: 6.14.3 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath12k/dp_rx.c"
          ],
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          "versions": [
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              "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2",
              "versionType": "git"
            },
            {
              "lessThan": "3abe15e756481c45f6acba3d476cb3ca4afc3b61",
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              "status": "affected",
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              "versionType": "git"
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              "versionType": "git"
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          "programFiles": [
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          ],
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "6.3"
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              "status": "unaffected",
              "version": "0",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.12",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.14.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.88",
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                {
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                {
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              "negate": false,
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi\n\nIn certain cases, hardware might provide packets with a\nlength greater than the maximum native Wi-Fi header length.\nThis can lead to accessing and modifying fields in the header\nwithin the ath12k_dp_rx_h_undecap_nwifi function for\nDP_RX_DECAP_TYPE_NATIVE_WIFI decap type and\npotentially resulting in invalid data access and memory corruption.\n\nAdd a sanity check before processing the SKB to prevent invalid\ndata access in the undecap native Wi-Fi function for the\nDP_RX_DECAP_TYPE_NATIVE_WIFI decap type.\n\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1"
        }
      ],
      "metrics": [
        {
          "cvssV3_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",
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          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The vulnerable code is the ath12k 802.11 receive path, triggered by a crafted 4-address QoS data frame with the Order bit set that is injected over the air; the attacker must be within Wi-Fi radio range of the target radio. Per kernel guidance, WiFi frame injection is Adjacent.\nAC:L - The attacker fully controls the frame_control field and header contents of the injected frame and can retransmit indefinitely until it lands in the native-Wi-Fi decap or WBM error path; no condition outside the attacker\u0027s control is required, and the ath11k twin fix documents real observed stack corruption from this exact path.\nPR:N - No authentication or association is needed \u2014 the frame only has to pass the hardware address filter, and the patched null_q_desc/tkip_mic_err error paths specifically handle frames with no peer and no REO queue (ath12k_dp_rx_h_mpdu falls back to HAL_ENCRYPT_TYPE_OPEN when peer lookup fails).\nUI:N - The corruption happens in the NAPI receive path as soon as the frame is processed; no victim action is required beyond having the wireless interface up.\nS:U - The out-of-bounds write corrupts the kernel stack of the receiving host, staying within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The trailing memcpy reads up to 36 bytes from the 30-byte stack array and copies the result into the skb that is delivered to mac80211 (and forwarded in AP/mesh mode), leaking adjacent kernel stack and stale DMA buffer contents; the attacker-controlled stack corruption is further leverageable as a memory-disclosure primitive.\nI:H - Up to 6 bytes of attacker-chosen 802.11 header data are written past a 30-byte stack buffer, overwriting adjacent locals, the stack canary, or saved registers \u2014 an out-of-bounds write with controlled content that is a control-flow-hijack primitive.\nA:H - Kernel stack corruption reliably produces a panic via __stack_chk_fail or FORTIFY_SOURCE, and the mishandled skb_pull/skb_push can trigger skb_under_panic; the ath11k report confirms an observed \"Kernel stack is corrupted\" crash."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:58:31.647Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
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      "title": "wifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37943",
    "datePublished": "2025-05-20T15:58:19.607Z",
    "dateReserved": "2025-04-16T04:51:23.972Z",
    "dateUpdated": "2026-08-05T11:58:31.647Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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