CVE-2026-74532 (GCVE-0-2026-74532)
Vulnerability from cvelistv5
Published
2026-08-15 12:27
Modified
2026-08-17 05:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: btintel: Validate length before parsing diagnostics TLV
btintel_diagnostics() accesses tlv->val[0] without first validating
that the diagnostics VSE is long enough to contain that field, so
may cause reading data beyond the received frame.
Fix by validating the length before access.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/bluetooth/btintel.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "c31be902ccbbb0b2c23159a1481dce80d1f9753d",
"status": "affected",
"version": "af395330abed142a2685bf3d17a938544816bf3c",
"versionType": "git"
},
{
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"status": "affected",
"version": "af395330abed142a2685bf3d17a938544816bf3c",
"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
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},
{
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"status": "affected",
"version": "af395330abed142a2685bf3d17a938544816bf3c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/bluetooth/btintel.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.4"
},
{
"lessThan": "6.4",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.151",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.103",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.44",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.151",
"versionStartIncluding": "6.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.103",
"versionStartIncluding": "6.4",
"vulnerable": true
},
{
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{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1.8",
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel: Validate length before parsing diagnostics TLV\n\nbtintel_diagnostics() accesses tlv-\u003eval[0] without first validating\nthat the diagnostics VSE is long enough to contain that field, so\nmay cause reading data beyond the received frame.\n\nFix by validating the length before access."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-17T05:21:15.978Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/c31be902ccbbb0b2c23159a1481dce80d1f9753d"
},
{
"url": "https://git.kernel.org/stable/c/dd20e30bdbd707ea8ced581f3d7f9e9854634b17"
},
{
"url": "https://git.kernel.org/stable/c/c618a9a5b08ea2e17bddf4e948be9f75d408fca4"
},
{
"url": "https://git.kernel.org/stable/c/6ec9c3dc52302b891513f608f5fb478349b15ab3"
},
{
"url": "https://git.kernel.org/stable/c/b640ff9af3c809ff5ea2077fbba17df1594ec1e4"
}
],
"title": "Bluetooth: btintel: Validate length before parsing diagnostics TLV",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-74532",
"datePublished": "2026-08-15T12:27:46.597Z",
"dateReserved": "2026-08-15T05:44:03.912Z",
"dateUpdated": "2026-08-17T05:21:15.978Z",
"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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