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CVE-2022-50186

Estado: AnalizadaMedia (5.5)—

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

ath11k: fix missing skb drop on htc_tx_completion error

On htc_tx_completion error the skb is not dropped. This is wrong since the completion_handler logic expect the skb to be consumed anyway even when an error is triggered. Not freeing the skb on error is a memory leak since the skb won't be freed anywere else. Correctly free the packet on eid >= ATH11K_HTC_EP_COUNT before returning.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1

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)

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{
  "id": "CVE-2022-50186",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
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        "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": [
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          "vendor": "Linux",
          "product": "Linux",
          "versions": [
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              "status": "affected",
              "version": "f951380a6022440335f668f85296096ba13071ba",
              "lessThan": "dda25326839d6e6b1fe59e79616149e44ea4eaa4",
              "versionType": "git"
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          "programFiles": [
            "drivers/net/wireless/ath/ath11k/htc.c"
          ],
          "defaultStatus": "unaffected"
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        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "versions": [
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              "status": "affected",
              "version": "5.17"
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              "status": "unaffected",
              "version": "0",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.18.18",
              "versionType": "semver",
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              "status": "unaffected",
              "version": "5.19.2",
              "versionType": "semver",
              "lessThanOrEqual": "5.19.*"
            },
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              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
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          ],
          "programFiles": [
            "drivers/net/wireless/ath/ath11k/htc.c"
          ],
          "defaultStatus": "affected"
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  ],
  "published": "2025-06-18T11:15:49.147",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1f1483361585ae7556492f50f83f038bbdf8c294",
      "tags": [
        "Patch"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    {
      "url": "https://git.kernel.org/stable/c/dda25326839d6e6b1fe59e79616149e44ea4eaa4",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nath11k: fix missing skb drop on htc_tx_completion error\n\nOn htc_tx_completion error the skb is not dropped. This is wrong since\nthe completion_handler logic expect the skb to be consumed anyway even\nwhen an error is triggered. Not freeing the skb on error is a memory\nleak since the skb won't be freed anywere else. Correctly free the\npacket on eid >= ATH11K_HTC_EP_COUNT before returning.\n\nTested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ath11k: se corrige la falta de eliminación de skb en el error htc_tx_completion. En el error htc_tx_completion, el skb no se elimina. Esto es incorrecto, ya que la lógica de completion_handler espera que el skb se consuma de todas formas, incluso cuando se produce un error. No liberar el skb en caso de error supone una fuga de memoria, ya que no se liberará en ningún otro lugar. Libere correctamente el paquete en eid >= ATH11K_HTC_EP_COUNT antes de regresar. Probado en: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1"
    }
  ],
  "lastModified": "2026-06-17T05:22:56.053",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7B831238-84A7-4D00-BF02-02E058AD3C34",
              "versionEndExcluding": "5.18.18",
              "versionStartIncluding": "5.17"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A1A2A5A5-4598-4D7E-BA07-4660398D6C8F",
              "versionEndExcluding": "5.19.2",
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          "operator": "OR"
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}