Vulnerability-Lookup

GHSA-MHMH-RGMH-RF63

Vulnerability from github – Published: 2025-07-10 09:32 – Updated: 2025-11-19 21:31

Details

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

wifi: ath12k: fix invalid access to memory

In ath12k_dp_rx_msdu_coalesce(), rxcb is fetched from skb and boolean is_continuation is part of rxcb. Currently, after freeing the skb, the rxcb->is_continuation accessed again which is wrong since the memory is already freed. This might lead use-after-free error.

Hence, fix by locally defining bool is_continuation from rxcb, so that after freeing skb, is_continuation can be used.

Compile tested only.

Severity

7.1 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38292"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-10T08:15:27Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix invalid access to memory\n\nIn ath12k_dp_rx_msdu_coalesce(), rxcb is fetched from skb and boolean\nis_continuation is part of rxcb.\nCurrently, after freeing the skb, the rxcb-\u003eis_continuation accessed\nagain which is wrong since the memory is already freed.\nThis might lead use-after-free error.\n\nHence, fix by locally defining bool is_continuation from rxcb,\nso that after freeing skb, is_continuation can be used.\n\nCompile tested only.",
  "id": "GHSA-mhmh-rgmh-rf63",
  "modified": "2025-11-19T21:31:15Z",
  "published": "2025-07-10T09:32:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38292"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/371b340affa52f280f6eadfd25fbd43f09f0d5c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f09d16cd57764c95c8548fe5b70672c9ac01127"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f17747fbda6fca934854463873c4abf8061491d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-38292 (GCVE-0-2025-38292)

Vulnerability from cvelistv5 – Published: 2025-07-10 07:42 – Updated: 2026-08-05 12:01

Title

wifi: ath12k: fix invalid access to memory

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix invalid access to memory In ath12k_dp_rx_msdu_coalesce(), rxcb is fetched from skb and boolean is_continuation is part of rxcb. Currently, after freeing the skb, the rxcb->is_continuation accessed again which is wrong since the memory is already freed. This might lead use-after-free error. Hence, fix by locally defining bool is_continuation from rxcb, so that after freeing skb, is_continuation can be used. Compile tested only.

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 mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/371b340affa52f280…
https://git.kernel.org/stable/c/5f09d16cd57764c95…
https://git.kernel.org/stable/c/9f17747fbda6fca93…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 371b340affa52f280f6eadfd25fbd43f09f0d5c0 (git) Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 5f09d16cd57764c95c8548fe5b70672c9ac01127 (git) Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 9f17747fbda6fca934854463873c4abf8061491d (git)
Linux	Linux	Affected: 6.3 Unaffected: 0 , < 6.3 (semver) Unaffected: 6.12.34 , ≤ 6.12.* (semver) Unaffected: 6.15.3 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath12k/dp_rx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "371b340affa52f280f6eadfd25fbd43f09f0d5c0",
              "status": "affected",
              "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2",
              "versionType": "git"
            },
            {
              "lessThan": "5f09d16cd57764c95c8548fe5b70672c9ac01127",
              "status": "affected",
              "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2",
              "versionType": "git"
            },
            {
              "lessThan": "9f17747fbda6fca934854463873c4abf8061491d",
              "status": "affected",
              "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath12k/dp_rx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.34",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.3",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix invalid access to memory\n\nIn ath12k_dp_rx_msdu_coalesce(), rxcb is fetched from skb and boolean\nis_continuation is part of rxcb.\nCurrently, after freeing the skb, the rxcb-\u003eis_continuation accessed\nagain which is wrong since the memory is already freed.\nThis might lead use-after-free error.\n\nHence, fix by locally defining bool is_continuation from rxcb,\nso that after freeing skb, is_continuation can be used.\n\nCompile tested only."
        }
      ],
      "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",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The vulnerable code is the ath12k Wi-Fi 7 receive data path, reached only by processing 802.11 frames delivered by the radio, so the attacker must be within radio range on the same wireless segment. Per kernel guidance, WiFi frame reception/injection is Adjacent.\nAC:L - Reaching `ath12k_dp_rx_msdu_coalesce()` needs only an MSDU larger than a single 2048-byte RX buffer (an ordinary A-MSDU or jumbo frame), and the read of the freed `skb-\u003ecb` then occurs deterministically on every such frame \u2014 no condition outside the attacker\u0027s control.\nPR:N - The attacker needs no account or privilege on the target; it only transmits frames. This applies to an ath12k device in AP/mesh mode on an open network (hotspots, IoT/embedded/automotive deployments) or to a STA associated with an attacker-controlled AP.\nUI:N - Frames are consumed automatically by the NAPI softirq RX path with no action by any local user or operator.\nS:U - The freed-memory access and its consequences are entirely within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - This is a use-after-free read of a recycled `skbuff_head_cache` object, and the resulting `msdu_list` desynchronization causes continuation-buffer payload to be parsed as a `hal_rx_desc` and copied into frames delivered up the stack, exposing adjacent memory contents.\nI:H - Loop control flow is driven by the freed byte; the resulting desync feeds attacker-controlled `msdu_len`/`l3_pad_bytes` into `skb_put()` and `skb_copy_from_linear_data()`, and the UAF itself gives heap-grooming leverage over the freed slab object, which is treated as High.\nA:H - The corrupted buffer accounting reaches `skb_over_panic()`/BUG and leaks RX skbs, and the use-after-free itself trips KASAN/slab checks \u2014 any kernel crash or oops is High."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:01:02.320Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/371b340affa52f280f6eadfd25fbd43f09f0d5c0"
        },
        {
          "url": "https://git.kernel.org/stable/c/5f09d16cd57764c95c8548fe5b70672c9ac01127"
        },
        {
          "url": "https://git.kernel.org/stable/c/9f17747fbda6fca934854463873c4abf8061491d"
        }
      ],
      "title": "wifi: ath12k: fix invalid access to memory",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38292",
    "datePublished": "2025-07-10T07:42:07.506Z",
    "dateReserved": "2025-04-16T04:51:24.001Z",
    "dateUpdated": "2026-08-05T12:01:02.320Z",
    "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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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