CVE-2026-98890 (GCVE-0-2026-98890)
Vulnerability from cvelistv5
Published
2026-10-23 11:37
Modified
2026-10-26 06:56
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: libertas: reject short monitor TX frames
In monitor mode, lbs_hard_start_xmit() casts skb->data to a
radiotap TX header, skips that header, and then copies the 802.11
destination address from offset 4 in the remaining frame. The
generic length check only rejects zero-length and oversized skbs, so
a short monitor frame can be read past the end of the skb data.
Require enough bytes for the radiotap TX header and the destination
address field before using the monitor-mode header layout.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 Version: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 Version: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 Version: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 Version: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 Version: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 Version: 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 |
||
{
"containers": {
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"programFiles": [
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"status": "unaffected",
"version": "0",
"versionType": "semver"
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{
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"status": "unaffected",
"version": "5.10.271",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas: reject short monitor TX frames\n\nIn monitor mode, lbs_hard_start_xmit() casts skb-\u003edata to a\nradiotap TX header, skips that header, and then copies the 802.11\ndestination address from offset 4 in the remaining frame. The\ngeneric length check only rejects zero-length and oversized skbs, so\na short monitor frame can be read past the end of the skb data.\n\nRequire enough bytes for the radiotap TX header and the destination\naddress field before using the monitor-mode header layout."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-26T06:56:15.594Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/68c92c991ddb75dfd3fd62a94a1d4d2dde44dc3c"
},
{
"url": "https://git.kernel.org/stable/c/d865dd6de8295f2bfaa83f0f5d49d2bef1543065"
},
{
"url": "https://git.kernel.org/stable/c/6576baa3fdbaa91fa75e4ba27095f4b8a27349a8"
},
{
"url": "https://git.kernel.org/stable/c/b657cc98d7936c5d9ed7e0e1944ad0e1f36375bb"
},
{
"url": "https://git.kernel.org/stable/c/443fac3de65c76544b450b9f9903be8989150d55"
},
{
"url": "https://git.kernel.org/stable/c/cdcfd662c67833d89ee3d912efde2eb67c8a7326"
},
{
"url": "https://git.kernel.org/stable/c/13ff543e0b2c713aedeaadadde686686e949dc78"
}
],
"title": "wifi: libertas: reject short monitor TX frames",
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-98890",
"datePublished": "2026-10-23T11:37:50.495Z",
"dateReserved": "2026-09-25T10:25:14.378Z",
"dateUpdated": "2026-10-26T06:56:15.594Z",
"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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