fkie_cve-2022-49867
Vulnerability from fkie_nvd
Published
2025-05-01 15:16
Modified
2025-10-01 16:15
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: wwan: iosm: fix memory leak in ipc_wwan_dellink IOSM driver registers network device without setting the needs_free_netdev flag, and does NOT call free_netdev() when unregisters network device, which causes a memory leak. This patch sets needs_free_netdev to true when registers network device, which makes netdev subsystem call free_netdev() automatically after unregister_netdevice().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/128514b51a5ba2c82f9e4a106f1c10423907618aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2ce2348c2858d723f7fe389dead9b43b08e0944ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f25caaca424703d5a0607310f0452f978f1f78d9Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1


To clipboard 

{
  "configurations": [
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              "versionEndExcluding": "5.15.79",
              "versionStartIncluding": "5.14",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wwan: iosm: fix memory leak in ipc_wwan_dellink\n\nIOSM driver registers network device without setting the\nneeds_free_netdev flag, and does NOT call free_netdev() when\nunregisters network device, which causes a memory leak.\n\nThis patch sets needs_free_netdev to true when registers\nnetwork device, which makes netdev subsystem call free_netdev()\nautomatically after unregister_netdevice()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: wwan: iosm: se corrige una fuga de memoria en ipc_wwan_dellink. El controlador IOSM registra el dispositivo de red sin configurar el indicador needs_free_netdev y NO llama a free_netdev() al cancelar el registro del dispositivo de red, lo que provoca una fuga de memoria. Este parche establece needs_free_netdev como verdadero al registrar el dispositivo de red, lo que hace que el subsistema netdev llame autom\u00e1ticamente a free_netdev() despu\u00e9s de cancelar el registro de netdevice()."
    }
  ],
  "id": "CVE-2022-49867",
  "lastModified": "2025-10-01T16:15:47.740",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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  "published": "2025-05-01T15:16:11.633",
  "references": [
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  "vulnStatus": "Modified",
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
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}


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