CVE-2026-23014 (GCVE-0-2026-23014)

Vulnerability from cvelistv5 – Published: 2026-01-28 14:24 – Updated: 2026-01-28 14:24
VLAI?
Title
perf: Ensure swevent hrtimer is properly destroyed
Summary
In the Linux kernel, the following vulnerability has been resolved: perf: Ensure swevent hrtimer is properly destroyed With the change to hrtimer_try_to_cancel() in perf_swevent_cancel_hrtimer() it appears possible for the hrtimer to still be active by the time the event gets freed. Make sure the event does a full hrtimer_cancel() on the free path by installing a perf_event::destroy handler.
Severity ?
No CVSS data available.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: eb3182ef0405ff2f6668fd3e5ff9883f60ce8801 , < deee9dfb111ab00f9dfd46c0c7e36656b80f5235 (git)
Affected: eb3182ef0405ff2f6668fd3e5ff9883f60ce8801 , < ff5860f5088e9076ebcccf05a6ca709d5935cfa9 (git)
Affected: 6b8c512811644cf2f5eaf6f44e928683c54127f0 (git)
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    Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.6 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc5 , ≤ * (original_commit_for_fix)
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Show details on NVD website

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          "product": "Linux",
          "programFiles": [
            "kernel/events/core.c"
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          "vendor": "Linux",
          "versions": [
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              "version": "6.19-rc5",
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            }
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              "operator": "OR"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf: Ensure swevent hrtimer is properly destroyed\n\nWith the change to hrtimer_try_to_cancel() in\nperf_swevent_cancel_hrtimer() it appears possible for the hrtimer to\nstill be active by the time the event gets freed.\n\nMake sure the event does a full hrtimer_cancel() on the free path by\ninstalling a perf_event::destroy handler."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-28T14:24:44.189Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/deee9dfb111ab00f9dfd46c0c7e36656b80f5235"
        },
        {
          "url": "https://git.kernel.org/stable/c/ff5860f5088e9076ebcccf05a6ca709d5935cfa9"
        }
      ],
      "title": "perf: Ensure swevent hrtimer is properly destroyed",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23014",
    "datePublished": "2026-01-28T14:24:44.189Z",
    "dateReserved": "2026-01-13T15:37:45.940Z",
    "dateUpdated": "2026-01-28T14:24:44.189Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23014\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-01-28T15:16:17.833\",\"lastModified\":\"2026-01-29T16:31:00.867\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nperf: Ensure swevent hrtimer is properly destroyed\\n\\nWith the change to hrtimer_try_to_cancel() in\\nperf_swevent_cancel_hrtimer() it appears possible for the hrtimer to\\nstill be active by the time the event gets freed.\\n\\nMake sure the event does a full hrtimer_cancel() on the free path by\\ninstalling a perf_event::destroy handler.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/deee9dfb111ab00f9dfd46c0c7e36656b80f5235\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ff5860f5088e9076ebcccf05a6ca709d5935cfa9\",\"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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • 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.


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