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i40e: Fix preempt count leak in napi poll tracepoint

Type: advisorySources: OSV

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.

Products
Kernel
Affected versions
Not specified
Fixed versions
6.12.77, 6.18.17, 6.19.7, 6.6.136
CVEs
CVE-2026-23313
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 00:42 UTC · Revision 1

Source evidence

i40e: Fix preempt count leak in napi poll tracepoint

core-osv · Original source

Published 25 Mar 2026, 10:27 UTC

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.

osv:CVE-2026-23313

Kernel

Fixed versions: 6.6.136, 6.12.77, 6.18.17, 6.19.7

Complete source record
{
  "id": "c0da62a4bf37a78b07e6f3b37a64aacb0d7f8c6704382d974cf60b6674206029",
  "url": "https://osv.dev/vulnerability/CVE-2026-23313",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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.",
    "evidence": "osv:CVE-2026-23313",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.136",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.77",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.17",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.19.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-23313",
      "aliases": [
        "CVE-2026-23313"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6d4d584a7ea8fc8d2be77545cb503118c193738a"
                },
                {
                  "fixed": "fa5d5baf67f619c7aa70697a194b5a9edd9f5bb7"
                },
                {
                  "fixed": "b7e91827e1cf89cd34ad11dc8f8c010b70ab786e"
                },
                {
                  "fixed": "9e0f091821571f0da387462803ee42f0bb157582"
                },
                {
                  "fixed": "dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f"
                },
                {
                  "fixed": "4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23313.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.136"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.77"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.17"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "6.19.7"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23313.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.973430853Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9",
        "https://git.kernel.org/stable/c/9e0f091821571f0da387462803ee42f0bb157582",
        "https://git.kernel.org/stable/c/b7e91827e1cf89cd34ad11dc8f8c010b70ab786e",
        "https://git.kernel.org/stable/c/dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f",
        "https://git.kernel.org/stable/c/fa5d5baf67f619c7aa70697a194b5a9edd9f5bb7",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23313.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-23313",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23313.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-23313",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 491289,
  "published_at": "2026-03-25T10:27:08.686+00:00"
}