Vulnerability-Lookup

GHSA-94WW-55M5-GMRG

Vulnerability from github – Published: 2026-03-25 12:30 – Updated: 2026-03-25 12:30

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23313"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-25T11:16:27Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-94ww-55m5-gmrg",
  "modified": "2026-03-25T12:30:22Z",
  "published": "2026-03-25T12:30:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23313"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e0f091821571f0da387462803ee42f0bb157582"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7e91827e1cf89cd34ad11dc8f8c010b70ab786e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-03-25 10:27

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

Linux

References

URL

Tags

	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

Vendor

Product

Version

Linux

Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < b7e91827e1cf89cd34ad11dc8f8c010b70ab786e (git)
Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < 9e0f091821571f0da387462803ee42f0bb157582 (git)
Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f (git)
Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < 4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9 (git)

Linux

Affected: 6.2
Unaffected: 0 , < 6.2 (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-rc3 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/i40e/i40e_trace.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b7e91827e1cf89cd34ad11dc8f8c010b70ab786e",
              "status": "affected",
              "version": "6d4d584a7ea8fc8d2be77545cb503118c193738a",
              "versionType": "git"
            },
            {
              "lessThan": "9e0f091821571f0da387462803ee42f0bb157582",
              "status": "affected",
              "version": "6d4d584a7ea8fc8d2be77545cb503118c193738a",
              "versionType": "git"
            },
            {
              "lessThan": "dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f",
              "status": "affected",
              "version": "6d4d584a7ea8fc8d2be77545cb503118c193738a",
              "versionType": "git"
            },
            {
              "lessThan": "4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9",
              "status": "affected",
              "version": "6d4d584a7ea8fc8d2be77545cb503118c193738a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/i40e/i40e_trace.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            },
            {
              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.77",
              "versionType": "semver"
            },
            {
              "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-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.77",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.17",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "7.0-rc3",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                }
              ],
              "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": "2026-03-25T10:27:08.686Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/b7e91827e1cf89cd34ad11dc8f8c010b70ab786e"
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          "url": "https://git.kernel.org/stable/c/dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f"
        },
        {
          "url": "https://git.kernel.org/stable/c/4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9"
        }
      ],
      "title": "i40e: Fix preempt count leak in napi poll tracepoint",
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        "engine": "bippy-1.2.0"
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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": "2026-03-25T10:27:08.686Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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

GHSA-94WW-55M5-GMRG

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

Tags

Sightings

Nomenclature