GHSA-J68W-R43C-3G43

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 tasklet_kill in cvm_oct_tx_shutdown

The TX cleanup tasklet can be scheduled by the watchdog IRQ handler to execute cvm_oct_tx_do_cleanup. There can be a pending tasklet in the queue which might run after the cvm_oct_remove() frees net_device structures, causing a use-after-free in cvm_oct_tx_do_cleanup() as it iterates cvm_oct_device[] which is an array of netdevice pointers. Add tasklet_kill() after free_irq() to ensure the tasklet is no longer scheduled or running before teardown proceeds.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-93279"
  ],
  "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 tasklet_kill in cvm_oct_tx_shutdown\n\nThe TX cleanup tasklet can be scheduled by the watchdog IRQ handler\nto execute cvm_oct_tx_do_cleanup. There can be a pending tasklet in\nthe queue which might run after the cvm_oct_remove() frees net_device\nstructures, causing a use-after-free in cvm_oct_tx_do_cleanup() as it\niterates cvm_oct_device[] which is an array of netdevice pointers.\nAdd tasklet_kill() after free_irq() to ensure the tasklet is no longer\nscheduled or running before teardown proceeds.",
  "id": "GHSA-j68w-r43c-3g43",
  "modified": "2026-09-24T18:31:25Z",
  "published": "2026-09-24T18:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93279"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/03d12490afd1198310ad0aba42462329832eb739"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2c0c9956596e48654bb4855e2a0742748a0826a7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/41a79bd9e5a74f8f483b3b206d10567912874fb4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b6365e4186322858a82c8713b1d0bd209c8e765a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b9af44b0d20b2247c4eb0ea5cfca907d643eea50"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d15226338dfaa84ffff142d32723cdf74d0c47c4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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