FKIE_CVE-2026-23164

Vulnerability from fkie_nvd - Published: 2026-02-14 16:15 - Updated: 2026-03-18 15:03
Severity ?
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: rocker: fix memory leak in rocker_world_port_post_fini() In rocker_world_port_pre_init(), rocker_port->wpriv is allocated with kzalloc(wops->port_priv_size, GFP_KERNEL). However, in rocker_world_port_post_fini(), the memory is only freed when wops->port_post_fini callback is set: if (!wops->port_post_fini) return; wops->port_post_fini(rocker_port); kfree(rocker_port->wpriv); Since rocker_ofdpa_ops does not implement port_post_fini callback (it is NULL), the wpriv memory allocated for each port is never freed when ports are removed. This leads to a memory leak of sizeof(struct ofdpa_port) bytes per port on every device removal. Fix this by always calling kfree(rocker_port->wpriv) regardless of whether the port_post_fini callback exists.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a3a64d75d2d0727da285749476761ebcad557a3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8ce2e85889939c02740b4245301aa5c35fc94887Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8d7ba71e46216b8657a82ca2ec118bc93812a4d0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b11e6f926480ab0939fec44781f28558c54be4e7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d448bf96889f1905e740c554780f5c9fa0440566Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d8723917efda3b4f4c3de78d1ec1e1af015c0be1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dce375f4afc348c310d171abcde7ec1499a4c26aPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
To clipboard 

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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrocker: fix memory leak in rocker_world_port_post_fini()\n\nIn rocker_world_port_pre_init(), rocker_port-\u003ewpriv is allocated with\nkzalloc(wops-\u003eport_priv_size, GFP_KERNEL). However, in\nrocker_world_port_post_fini(), the memory is only freed when\nwops-\u003eport_post_fini callback is set:\n\n    if (!wops-\u003eport_post_fini)\n        return;\n    wops-\u003eport_post_fini(rocker_port);\n    kfree(rocker_port-\u003ewpriv);\n\nSince rocker_ofdpa_ops does not implement port_post_fini callback\n(it is NULL), the wpriv memory allocated for each port is never freed\nwhen ports are removed. This leads to a memory leak of\nsizeof(struct ofdpa_port) bytes per port on every device removal.\n\nFix this by always calling kfree(rocker_port-\u003ewpriv) regardless of\nwhether the port_post_fini callback exists."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nrocker: corregir fuga de memoria en rocker_world_port_post_fini()\n\nEn rocker_world_port_pre_init(), rocker_port-\u0026gt;wpriv se asigna con kzalloc(wops-\u0026gt;port_priv_size, GFP_KERNEL). Sin embargo, en rocker_world_port_post_fini(), la memoria solo se libera cuando la devoluci\u00f3n de llamada wops-\u0026gt;port_post_fini est\u00e1 establecida:\n\n    si (!wops-\u0026gt;port_post_fini)\n        retornar;\n    wops-\u0026gt;port_post_fini(rocker_port);\n    kfree(rocker_port-\u0026gt;wpriv);\n\nDado que rocker_ofdpa_ops no implementa la devoluci\u00f3n de llamada port_post_fini (es NULL), la memoria wpriv asignada para cada puerto nunca se libera cuando se eliminan los puertos. Esto conduce a una fuga de memoria de sizeof(struct ofdpa_port) bytes por puerto en cada eliminaci\u00f3n de dispositivo.\n\nSolucione esto llamando siempre a kfree(rocker_port-\u0026gt;wpriv) independientemente de si existe la devoluci\u00f3n de llamada port_post_fini."
    }
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  "id": "CVE-2026-23164",
  "lastModified": "2026-03-18T15:03:29.617",
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        "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",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2026-02-14T16:15:56.590",
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  "vulnStatus": "Analyzed",
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          "value": "CWE-401"
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      "source": "nvd@nist.gov",
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}


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