CVE-2026-72236 (GCVE-0-2026-72236)
Vulnerability from cvelistv5
Published
2026-08-15 05:54
Modified
2026-08-23 12:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init()
ev variable is userspace controlled via event->attr.config and used
as an array index after bounds checking, but without speculation
barriers.
Add the missing array_index_nospec() call to prevent speculative
execution.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 212188a596d17d519842ef2173150315735b54e1 Version: 212188a596d17d519842ef2173150315735b54e1 Version: 212188a596d17d519842ef2173150315735b54e1 Version: 212188a596d17d519842ef2173150315735b54e1 Version: 212188a596d17d519842ef2173150315735b54e1 Version: 212188a596d17d519842ef2173150315735b54e1 |
||
{
"containers": {
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"programFiles": [
"arch/s390/kernel/perf_cpum_cf.c"
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"vendor": "Linux",
"versions": [
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"version": "3.4"
},
{
"lessThan": "3.4",
"status": "unaffected",
"version": "0",
"versionType": "semver"
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{
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"status": "unaffected",
"version": "6.1.184",
"versionType": "semver"
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{
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"status": "unaffected",
"version": "6.6.145",
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},
{
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"status": "unaffected",
"version": "6.12.97",
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},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.40",
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},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
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}
],
"negate": false,
"operator": "OR"
}
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}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init()\n\nev variable is userspace controlled via event-\u003eattr.config and used\nas an array index after bounds checking, but without speculation\nbarriers.\n\nAdd the missing array_index_nospec() call to prevent speculative\nexecution."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-23T12:47:04.750Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/4c249b214c686f9a1c4cf4f32893b59b189e897a"
},
{
"url": "https://git.kernel.org/stable/c/27206bb57c47bdbe33bccc78fa7f7e2a719a06b9"
},
{
"url": "https://git.kernel.org/stable/c/a21f3615c88421df81060b6ff89220fd34094c4d"
},
{
"url": "https://git.kernel.org/stable/c/fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f"
},
{
"url": "https://git.kernel.org/stable/c/f79dff8c721bbb1f3fc312ea55e0551c2cc28801"
},
{
"url": "https://git.kernel.org/stable/c/49145bce539117db4b6e9e83c0e5ef528e361050"
}
],
"title": "s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-72236",
"datePublished": "2026-08-15T05:54:25.891Z",
"dateReserved": "2026-08-09T03:40:39.914Z",
"dateUpdated": "2026-08-23T12:47:04.750Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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