Vulnerability-Lookup

FKIE_CVE-2026-23313

Vulnerability from fkie_nvd - Published: 2026-03-25 11:16 - Updated: 2026-05-26 15:01

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9e0f091821571f0da387462803ee42f0bb157582	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b7e91827e1cf89cd34ad11dc8f8c010b70ab786e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fa5d5baf67f619c7aa70697a194b5a9edd9f5bb7	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0A0F1E9A-F127-4699-A014-9E08441C9A14",
              "versionEndExcluding": "6.6.136",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B3D12E00-E42D-4056-B354-BAD4903C03A5",
              "versionEndExcluding": "6.12.77",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A5E006E4-59C7-43C1-9231-62A72219F2BA",
              "versionEndExcluding": "6.18.17",
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            {
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              "matchCriteriaId": "69245D10-0B71-485E-80C3-A64F077004D3",
              "versionEndExcluding": "6.19.7",
              "versionStartIncluding": "6.19",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "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": "2026-05-26T15:01:30.750",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-03-25T11:16:27.623",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "tags": [
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-05-11 22:04

Title

i40e: Fix preempt count leak in napi poll tracepoint

Summary

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/fa5d5baf67f619c7a…
https://git.kernel.org/stable/c/b7e91827e1cf89cd3…
https://git.kernel.org/stable/c/9e0f091821571f0da…
https://git.kernel.org/stable/c/dca4ea596a3b0a1b8…
https://git.kernel.org/stable/c/4b3d54a85bd37ebf2…

Impacted products

2 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)
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)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/i40e/i40e_trace.h"
          ],
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          ]
        },
        {
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          "programFiles": [
            "drivers/net/ethernet/intel/i40e/i40e_trace.h"
          ],
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          "versions": [
            {
              "status": "affected",
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            },
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              "status": "unaffected",
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              "versionType": "semver"
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              "status": "unaffected",
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              "version": "6.19.7",
              "versionType": "semver"
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
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        }
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      "title": "i40e: Fix preempt count leak in napi poll tracepoint",
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    "datePublished": "2026-03-25T10:27:08.686Z",
    "dateReserved": "2026-01-13T15:37:45.994Z",
    "dateUpdated": "2026-05-11T22:04:28.296Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-23313

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

Tags

Sightings

Nomenclature