GHSA-4CHX-F5RG-W5PP

Vulnerability from github – Published: 2026-02-14 18:30 – Updated: 2026-02-14 18:30
VLAI?
Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23164"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-14T16:15:56Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-4chx-f5rg-w5pp",
  "modified": "2026-02-14T18:30:15Z",
  "published": "2026-02-14T18:30:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23164"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a3a64d75d2d0727da285749476761ebcad557a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8ce2e85889939c02740b4245301aa5c35fc94887"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8d7ba71e46216b8657a82ca2ec118bc93812a4d0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b11e6f926480ab0939fec44781f28558c54be4e7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d448bf96889f1905e740c554780f5c9fa0440566"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d8723917efda3b4f4c3de78d1ec1e1af015c0be1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dce375f4afc348c310d171abcde7ec1499a4c26a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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