CVE-2026-93279 (GCVE-0-2026-93279)
Vulnerability from cvelistv5
Published
2026-09-24 15:52
Modified
2026-10-19 09:08
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 4898c560103fb8075c10a8e9d70e0ca26873075e
Version: 4898c560103fb8075c10a8e9d70e0ca26873075e
Version: 4898c560103fb8075c10a8e9d70e0ca26873075e
Version: 4898c560103fb8075c10a8e9d70e0ca26873075e
Version: 4898c560103fb8075c10a8e9d70e0ca26873075e
Version: 4898c560103fb8075c10a8e9d70e0ca26873075e
Version: 4898c560103fb8075c10a8e9d70e0ca26873075e
Version: 4898c560103fb8075c10a8e9d70e0ca26873075e
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{
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            "drivers/staging/octeon/ethernet-tx.c"
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:08:33.590Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        {
          "url": "https://git.kernel.org/stable/c/32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486"
        },
        {
          "url": "https://git.kernel.org/stable/c/d15226338dfaa84ffff142d32723cdf74d0c47c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19"
        },
        {
          "url": "https://git.kernel.org/stable/c/b6365e4186322858a82c8713b1d0bd209c8e765a"
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        {
          "url": "https://git.kernel.org/stable/c/03d12490afd1198310ad0aba42462329832eb739"
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          "url": "https://git.kernel.org/stable/c/2c0c9956596e48654bb4855e2a0742748a0826a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/41a79bd9e5a74f8f483b3b206d10567912874fb4"
        },
        {
          "url": "https://git.kernel.org/stable/c/b9af44b0d20b2247c4eb0ea5cfca907d643eea50"
        }
      ],
      "title": "staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93279",
    "datePublished": "2026-09-24T15:52:21.275Z",
    "dateReserved": "2026-09-17T16:02:15.098Z",
    "dateUpdated": "2026-10-19T09:08:33.590Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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