GHSA-7PPG-QGHW-HG2G

Vulnerability from github – Published: 2026-09-24 18:31 – Updated: 2026-09-24 18:31
VLAI
Details

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

staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown

cvm_oct_rx_shutdown calls free_irq and netif_napi_del without disabling the napi instance first. As the free_irq only waits for completion of hard interrupt handlers, the napi poll function could still be active. If cvm_oct_remove proceeds to free the plat structure (which holds the NAPI instances), the active poll function will access freed memory, resulting in a use-after-free crash.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-93278"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-24T16:17:25Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: octeon: add missing napi_disable in cvm_oct_rx_shutdown\n\ncvm_oct_rx_shutdown calls free_irq and netif_napi_del without\ndisabling the napi instance first. As the free_irq only waits\nfor completion of hard interrupt handlers, the napi poll\nfunction could still be active. If cvm_oct_remove proceeds to\nfree the plat structure (which holds the NAPI instances), the\nactive poll function will access freed memory, resulting in a\nuse-after-free crash.",
  "id": "GHSA-7ppg-qghw-hg2g",
  "modified": "2026-09-24T18:31:25Z",
  "published": "2026-09-24T18:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93278"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/158389d7af04bbf0664d91c2ce31fcc9eeace1eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/89f9f433271fad9351de6a3c713b45b2cfb23e4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/98f9036b2254c928cb44da0c77dba38f66f7d8f1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b2243ffaac14cc3639b5b32a371aac37f96ee554"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b38fbd68cc36b4f478a1e3cfc169b8616ae1337d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0a9a8586a63fda49e61a6b83360feac2a60d898"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c124049c3a7006fd6caf629139a5722610bbffb4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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