FKIE_CVE-2026-23014
Vulnerability from fkie_nvd - Published: 2026-01-28 15:16 - Updated: 2026-03-25 19:46
Severity ?
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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.18 | |
| linux | linux_kernel | 6.19 | |
| linux | linux_kernel | 6.19 | |
| linux | linux_kernel | 6.19 | |
| linux | linux_kernel | 6.19 | |
| linux | linux_kernel | 6.19 | |
| linux | linux_kernel | 6.19 | |
| linux | linux_kernel | 6.19 | |
| linux | linux_kernel | 6.19 |
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"cveTags": [],
"descriptions": [
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"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."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nperf: Asegurar que el hrtimer de swevent se destruya correctamente\n\nCon el cambio a hrtimer_try_to_cancel() en perf_swevent_cancel_hrtimer(), parece posible que el hrtimer siga activo para cuando el evento es liberado.\n\nAsegurarse de que el evento realice un hrtimer_cancel() completo en la ruta de liberaci\u00f3n mediante la instalaci\u00f3n de un controlador perf_event::destroy."
}
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"id": "CVE-2026-23014",
"lastModified": "2026-03-25T19:46:35.820",
"metrics": {
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"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"
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},
"published": "2026-01-28T15:16:17.833",
"references": [
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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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.
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