FKIE_CVE-2026-23313

Vulnerability from fkie_nvd - Published: 2026-03-25 11:16 - Updated: 2026-04-27 14:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix preempt count leak in napi poll tracepoint Using get_cpu() in the tracepoint assignment causes an obvious preempt count leak because nothing invokes put_cpu() to undo it: softirq: huh, entered softirq 3 NET_RX with preempt_count 00000100, exited with 00000101? This clearly has seen a lot of testing in the last 3+ years... Use smp_processor_id() instead.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9e0f091821571f0da387462803ee42f0bb157582
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b7e91827e1cf89cd34ad11dc8f8c010b70ab786e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fa5d5baf67f619c7aa70697a194b5a9edd9f5bb7
Impacted products
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: Fix preempt count leak in napi poll tracepoint\n\nUsing get_cpu() in the tracepoint assignment causes an obvious preempt\ncount leak because nothing invokes put_cpu() to undo it:\n\n  softirq: huh, entered softirq 3 NET_RX with preempt_count 00000100, exited with 00000101?\n\nThis clearly has seen a lot of testing in the last 3+ years...\n\nUse smp_processor_id() instead."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ni40e: Soluci\u00f3n a la fuga del contador de preemption en el tracepoint de sondeo de napi\n\nUsar get_cpu() en la asignaci\u00f3n del tracepoint causa una fuga obvia del contador de preemption porque nada invoca put_cpu() para deshacerlo:\n\n\u0027softirq: eh, entr\u00f3 en softirq 3 NET_RX con preempt_count 00000100, sali\u00f3 con 00000101?\u0027\n\nEsto claramente ha sido sometido a muchas pruebas en los \u00faltimos 3+ a\u00f1os...\n\nUsar smp_processor_id() en su lugar."
    }
  ],
  "id": "CVE-2026-23313",
  "lastModified": "2026-04-27T14:16:30.430",
  "metrics": {},
  "published": "2026-03-25T11:16:27.623",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9e0f091821571f0da387462803ee42f0bb157582"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b7e91827e1cf89cd34ad11dc8f8c010b70ab786e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fa5d5baf67f619c7aa70697a194b5a9edd9f5bb7"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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