CVE-2026-23313 (GCVE-0-2026-23313)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-04-27 13:56
VLAI?
Title
i40e: Fix preempt count leak in napi poll tracepoint
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < fa5d5baf67f619c7aa70697a194b5a9edd9f5bb7 (git)
Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < b7e91827e1cf89cd34ad11dc8f8c010b70ab786e (git)
Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < 9e0f091821571f0da387462803ee42f0bb157582 (git)
Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f (git)
Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < 4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9 (git)
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    Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.6.136 , ≤ 6.6.* (semver)
Unaffected: 6.12.77 , ≤ 6.12.* (semver)
Unaffected: 6.18.17 , ≤ 6.18.* (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/i40e/i40e_trace.h"
          ],
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          ],
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "6.2"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.136",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.77",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "negate": false,
              "operator": "OR"
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      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-27T13:56:11.718Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/fa5d5baf67f619c7aa70697a194b5a9edd9f5bb7"
        },
        {
          "url": "https://git.kernel.org/stable/c/b7e91827e1cf89cd34ad11dc8f8c010b70ab786e"
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        },
        {
          "url": "https://git.kernel.org/stable/c/4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9"
        }
      ],
      "title": "i40e: Fix preempt count leak in napi poll tracepoint",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23313",
    "datePublished": "2026-03-25T10:27:08.686Z",
    "dateReserved": "2026-01-13T15:37:45.994Z",
    "dateUpdated": "2026-04-27T13:56:11.718Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-23313",
      "date": "2026-05-09",
      "epss": "0.00026",
      "percentile": "0.07402"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23313\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-03-25T11:16:27.623\",\"lastModified\":\"2026-04-27T14:16:30.430\",\"vulnStatus\":\"Awaiting Analysis\",\"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.\"}],\"metrics\":{},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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