CVE-2025-38565 (GCVE-0-2025-38565)
Vulnerability from cvelistv5 – Published: 2025-08-19 17:02 – Updated: 2026-05-11 21:30
VLAI
EPSS
VEX
Title
perf/core: Exit early on perf_mmap() fail
Summary
In the Linux kernel, the following vulnerability has been resolved:
perf/core: Exit early on perf_mmap() fail
When perf_mmap() fails to allocate a buffer, it still invokes the
event_mapped() callback of the related event. On X86 this might increase
the perf_rdpmc_allowed reference counter. But nothing undoes this as
perf_mmap_close() is never called in this case, which causes another
reference count leak.
Return early on failure to prevent that.
Severity
7.8 (High)
Assigner
References
11 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 5ffda7f3ed76ec8defc19d985e33b3b82ba07839
(git)
Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 9b90a48c7de828a15c7a4fc565d46999c6e22d6b (git) Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < de85e72598d89880a02170a1cbc27b35a7d978a9 (git) Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 27d44145bd576bbef9bf6165bcd78128ec3e6cbd (git) Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < f41e9eba77bf97626e04296dc5677d02816d2432 (git) Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 92043120a2e992800580855498ab8507e1b22db9 (git) Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 163b0d1a209fe0df5476c1df2330ca12b55abf92 (git) Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 7ff8521f30c4c2fcd4e88bd7640486602bf8a650 (git) Affected: 1e0fb9ec679c9273a641f1d6f3d25ea47baef2bb , < 07091aade394f690e7b655578140ef84d0e8d7b0 (git) |
guessed | |
| Linux | Linux |
Affected:
4.0
Unaffected: 0 , < 4.0 (semver) Unaffected: 5.4.297 , ≤ 5.4.* (semver) Unaffected: 5.10.241 , ≤ 5.10.* (semver) Unaffected: 5.15.190 , ≤ 5.15.* (semver) Unaffected: 6.1.148 , ≤ 6.1.* (semver) Unaffected: 6.6.102 , ≤ 6.6.* (semver) Unaffected: 6.12.42 , ≤ 6.12.* (semver) Unaffected: 6.15.10 , ≤ 6.15.* (semver) Unaffected: 6.16.1 , ≤ 6.16.* (semver) Unaffected: 6.17 , ≤ * (original_commit_for_fix) |
guessed |
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"url": "https://git.kernel.org/stable/c/27d44145bd576bbef9bf6165bcd78128ec3e6cbd"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/5ffda7f3ed76ec8defc19d985e33b3b82ba07839"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/7ff8521f30c4c2fcd4e88bd7640486602bf8a650"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/92043120a2e992800580855498ab8507e1b22db9"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/9b90a48c7de828a15c7a4fc565d46999c6e22d6b"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/de85e72598d89880a02170a1cbc27b35a7d978a9"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/f41e9eba77bf97626e04296dc5677d02816d2432"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-06-30T10:33:27+00:00",
"cve": "CVE-2025-38565",
"id": "CVE-2025-38565",
"initial_release_date": "2025-08-19T00:00:00+00:00",
"product_status:known_affected": "246",
"product_status:known_not_affected": "28",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: perf/core: Exit early on perf_mmap() fail",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38565.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "low",
"current_release_date": "2026-08-28T17:00:21Z",
"cve": "CVE-2025-38565",
"id": "CVE-2025-38565",
"initial_release_date": "2025-08-19T23:23:49Z",
"product_status:first_fixed": "2",
"product_status:known_affected": "257",
"product_status:known_not_affected": "6",
"product_status:recommended": "669",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2025-38565",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-38565.json",
"version": "57"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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