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CVE-2025-38605

Estado: AnalizadaMedia (5.5)—

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

wifi: ath12k: Pass ab pointer directly to ath12k_dp_tx_get_encap_type()

In ath12k_dp_tx_get_encap_type(), the arvif parameter is only used to retrieve the ab pointer. In vdev delete sequence the arvif->ar could become NULL and that would trigger kernel panic. Since the caller ath12k_dp_tx() already has a valid ab pointer, pass it directly to avoid panic and unnecessary dereferencing.

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

Detalles técnicos trazas, registros y código del informe original
PC points to "ath12k_dp_tx+0x228/0x988 [ath12k]"
LR points to "ath12k_dp_tx+0xc8/0x988 [ath12k]".
The Backtrace obtained is as follows:
ath12k_dp_tx+0x228/0x988 [ath12k]
ath12k_mac_tx_check_max_limit+0x608/0x920 [ath12k]
ieee80211_process_measurement_req+0x320/0x348 [mac80211]
ieee80211_tx_dequeue+0x9ac/0x1518 [mac80211]
ieee80211_tx_dequeue+0xb14/0x1518 [mac80211]
ieee80211_tx_prepare_skb+0x224/0x254 [mac80211]
ieee80211_xmit+0xec/0x100 [mac80211]
__ieee80211_subif_start_xmit+0xc50/0xf40 [mac80211]
ieee80211_subif_start_xmit+0x2e8/0x308 [mac80211]
netdev_start_xmit+0x150/0x18c
dev_hard_start_xmit+0x74/0xc0

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-38605",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "e93bbd65547ea8073b707c9034c3f051f8018614",
              "lessThan": "b508f370f88f277c95e2bd3bc47217a96d668cee",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e93bbd65547ea8073b707c9034c3f051f8018614",
              "lessThan": "ee4f8e7fa578f9f28cef5f409677db25f4f83d7e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e93bbd65547ea8073b707c9034c3f051f8018614",
              "lessThan": "05062834350f0bf7ad1abcebc2807220e90220eb",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/ath/ath12k/dp_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": "6.4"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.4",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.15.10",
              "versionType": "semver",
              "lessThanOrEqual": "6.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.16.1",
              "versionType": "semver",
              "lessThanOrEqual": "6.16.*"
            },
            {
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/ath/ath12k/dp_tx.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-08-19T17:15:38.793",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/05062834350f0bf7ad1abcebc2807220e90220eb",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b508f370f88f277c95e2bd3bc47217a96d668cee",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ee4f8e7fa578f9f28cef5f409677db25f4f83d7e",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: Pass ab pointer directly to ath12k_dp_tx_get_encap_type()\n\nIn ath12k_dp_tx_get_encap_type(), the arvif parameter is only used to\nretrieve the ab pointer. In vdev delete sequence the arvif->ar could\nbecome NULL and that would trigger kernel panic.\nSince the caller ath12k_dp_tx() already has a valid ab pointer, pass it\ndirectly to avoid panic and unnecessary dereferencing.\n\nPC points to \"ath12k_dp_tx+0x228/0x988 [ath12k]\"\nLR points to \"ath12k_dp_tx+0xc8/0x988 [ath12k]\".\nThe Backtrace obtained is as follows:\nath12k_dp_tx+0x228/0x988 [ath12k]\nath12k_mac_tx_check_max_limit+0x608/0x920 [ath12k]\nieee80211_process_measurement_req+0x320/0x348 [mac80211]\nieee80211_tx_dequeue+0x9ac/0x1518 [mac80211]\nieee80211_tx_dequeue+0xb14/0x1518 [mac80211]\nieee80211_tx_prepare_skb+0x224/0x254 [mac80211]\nieee80211_xmit+0xec/0x100 [mac80211]\n__ieee80211_subif_start_xmit+0xc50/0xf40 [mac80211]\nieee80211_subif_start_xmit+0x2e8/0x308 [mac80211]\nnetdev_start_xmit+0x150/0x18c\ndev_hard_start_xmit+0x74/0xc0\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: Pasar el puntero ab directamente a ath12k_dp_tx_get_encap_type(). En ath12k_dp_tx_get_encap_type(), el parámetro arvif solo se usa para recuperar el puntero ab. En la secuencia de eliminación de vdev, arvif->ar podría volverse nulo, lo que provocaría un pánico del kernel. Dado que el llamador ath12k_dp_tx() ya tiene un puntero ab válido, páselo directamente para evitar el pánico y la desreferenciación innecesaria. El PC apunta a \"ath12k_dp_tx+0x228/0x988 [ath12k]\". El LR apunta a \"ath12k_dp_tx+0xc8/0x988 [ath12k]\". El backtrace obtenido es el siguiente: ath12k_dp_tx+0x228/0x988 [ath12k] ath12k_mac_tx_check_max_limit+0x608/0x920 [ath12k] ieee80211_process_measurement_req+0x320/0x348 [mac80211] ieee80211_tx_dequeue+0x9ac/0x1518 [mac80211] ieee80211_tx_dequeue+0xb14/0x1518 [mac80211] ieee80211_tx_prepare_skb+0x224/0x254 [mac80211] ieee80211_xmit+0xec/0x100 [mac80211] __ieee80211_subif_start_xmit+0xc50/0xf40 [mac80211] ieee80211_subif_start_xmit+0x2e8/0x308 [mac80211] netdev_start_xmit+0x150/0x18c dev_hard_start_xmit+0x74/0xc0 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 "
    }
  ],
  "lastModified": "2026-06-17T09:17:12.157",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "081323AE-B02D-444C-82BF-B59AF3FDF045",
              "versionEndExcluding": "6.15.10",
              "versionStartIncluding": "6.4"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "58182352-D7DF-4CC9-841E-03C1D852C3FB",
              "versionEndExcluding": "6.16.1",
              "versionStartIncluding": "6.16"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}