CVE-2025-38322 (GCVE-0-2025-38322)
Vulnerability from cvelistv5 – Published: 2025-07-10 08:14 – Updated: 2026-10-15 01:07
VLAI
EPSS
VEX
Title
perf/x86/intel: Fix crash in icl_update_topdown_event()
Summary
In the Linux kernel, the following vulnerability has been resolved:
perf/x86/intel: Fix crash in icl_update_topdown_event()
The perf_fuzzer found a hard-lockup crash on a RaptorLake machine:
Oops: general protection fault, maybe for address 0xffff89aeceab400: 0000
CPU: 23 UID: 0 PID: 0 Comm: swapper/23
Tainted: [W]=WARN
Hardware name: Dell Inc. Precision 9660/0VJ762
RIP: 0010:native_read_pmc+0x7/0x40
Code: cc e8 8d a9 01 00 48 89 03 5b cd cc cc cc cc 0f 1f ...
RSP: 000:fffb03100273de8 EFLAGS: 00010046
....
Call Trace:
<TASK>
icl_update_topdown_event+0x165/0x190
? ktime_get+0x38/0xd0
intel_pmu_read_event+0xf9/0x210
__perf_event_read+0xf9/0x210
CPUs 16-23 are E-core CPUs that don't support the perf metrics feature.
The icl_update_topdown_event() should not be invoked on these CPUs.
It's a regression of commit:
f9bdf1f95339 ("perf/x86/intel: Avoid disable PMU if !cpuc->enabled in sample read")
The bug introduced by that commit is that the is_topdown_event() function
is mistakenly used to replace the is_topdown_count() call to check if the
topdown functions for the perf metrics feature should be invoked.
Fix it.
Severity
5.5 (Medium)
Assigner
References
9 references
Impacted products
9 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
781b2db0eb7731fbde510c268b7ccc62959c3feb , < 702ea6028032d6c1fe96c2d4762a3575e3654819
(git)
Affected: e7f6922c8a5b41522a8329ea6bbf815993b2dd28 , < 79e2dd573116d3338507c311460da9669095c94d (git) Affected: 3a8bec6583e5239de3bd597ab382dc6c2b0c29a1 , < e97c45c770f5e56c784a46c2a96ab968d26b97d9 (git) Affected: f9bdf1f953392c9edd69a7f884f78c0390127029 , < a85cc69acdcb05f8cd226b8ea0778b8e2e887e6f (git) Affected: f9bdf1f953392c9edd69a7f884f78c0390127029 , < b0823d5fbacb1c551d793cbfe7af24e0d1fa45ed (git) Affected: 06cd7bfbb86e9db3e9013ea6636ad2c6f0a1664d (git) Affected: d8370aa704bd7e384918c8f466856374725c0585 (git) Affected: 6.1.134 , < 6.1.149 (semver) Affected: 6.6.87 , < 6.6.101 (semver) Affected: 6.12.23 , < 6.12.49 (semver) Affected: 6.13.11 , < 6.14 (semver) Affected: 6.14.2 , < 6.15 (semver) |
guessed | |
| Linux | Linux |
Affected:
6.15
Unaffected: 0 , < 6.15 (semver) Unaffected: 6.1.149 , ≤ 6.1.* (semver) Unaffected: 6.6.101 , ≤ 6.6.* (semver) Unaffected: 6.12.49 , ≤ 6.12.* (semver) Unaffected: 6.15.4 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
guessed | |
| Siemens | SIMATIC CN 4100 |
Affected:
0 , < V5.0
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.7 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.7 , < *
(custom)
|
guessed | |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.7 , < *
(custom)
|
guessed |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/intel: Fix crash in icl_update_topdown_event()\n\nThe perf_fuzzer found a hard-lockup crash on a RaptorLake machine:\n\n Oops: general protection fault, maybe for address 0xffff89aeceab400: 0000\n CPU: 23 UID: 0 PID: 0 Comm: swapper/23\n Tainted: [W]=WARN\n Hardware name: Dell Inc. Precision 9660/0VJ762\n RIP: 0010:native_read_pmc+0x7/0x40\n Code: cc e8 8d a9 01 00 48 89 03 5b cd cc cc cc cc 0f 1f ...\n RSP: 000:fffb03100273de8 EFLAGS: 00010046\n ....\n Call Trace:\n \u003cTASK\u003e\n icl_update_topdown_event+0x165/0x190\n ? ktime_get+0x38/0xd0\n intel_pmu_read_event+0xf9/0x210\n __perf_event_read+0xf9/0x210\n\nCPUs 16-23 are E-core CPUs that don\u0027t support the perf metrics feature.\nThe icl_update_topdown_event() should not be invoked on these CPUs.\n\nIt\u0027s a regression of commit:\n\n f9bdf1f95339 (\"perf/x86/intel: Avoid disable PMU if !cpuc-\u003eenabled in sample read\")\n\nThe bug introduced by that commit is that the is_topdown_event() function\nis mistakenly used to replace the is_topdown_count() call to check if the\ntopdown functions for the perf metrics feature should be invoked.\n\nFix it."
},
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: perf/x86/intel: Se corrige un fallo en icl_update_topdown_event(). perf_fuzzer encontr\u00f3 un fallo de bloqueo duro en una m\u00e1quina RaptorLake: Oops: fallo de protecci\u00f3n general, tal vez para la direcci\u00f3n 0xffff89aeceab400: 0000 CPU: 23 UID: 0 PID: 0 Comm: swapper/23 Tainted: [W]=WARN Nombre del hardware: Dell Inc. Precision 9660/0VJ762 RIP: 0010:native_read_pmc+0x7/0x40 C\u00f3digo: cc e8 8d a9 01 00 48 89 03 5b cd cc cc cc cc 0f 1f ... RSP: 000:fffb03100273de8 EFLAGS: 00010046 .... Seguimiento de llamadas: icl_update_topdown_event+0x165/0x190 ? ktime_get+0x38/0xd0 intel_pmu_read_event+0xf9/0x210 __perf_event_read+0xf9/0x210 Las CPU 16-23 son CPU de n\u00facleo E que no admiten la funci\u00f3n de m\u00e9tricas de rendimiento. No se debe invocar icl_update_topdown_event() en estas CPU. Es una regresi\u00f3n del commit: f9bdf1f95339 (\"perf/x86/intel: Evitar deshabilitar PMU si !cpuc-\u0026gt;enabled en la lectura de muestra\") El error introducido por esa confirmaci\u00f3n es que la funci\u00f3n is_topdown_event() se usa por error para reemplazar la llamada is_topdown_count() para verificar si se deben invocar las funciones descendentes para la caracter\u00edstica de m\u00e9tricas de rendimiento. Arr\u00e9glenlo."
}
],
"id": "CVE-2025-38322",
"lastModified": "2026-10-15T02:17:53.807",
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"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"
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"exploitabilityScore": 1.8,
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"source": "nvd@nist.gov",
"type": "Primary"
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"aggregate_severity": "Moderate",
"current_release_date": "2026-06-30T01:03:48+00:00",
"cve": "CVE-2025-38322",
"id": "CVE-2025-38322",
"initial_release_date": "2025-07-10T00:00:00+00:00",
"product_status:fixed": "612",
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"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: perf/x86/intel: Fix crash in icl_update_topdown_event()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38322.json",
"version": "3"
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}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.