CVE-2026-98346 (GCVE-0-2026-98346)
Vulnerability from cvelistv5 – Published: 2026-10-06 08:46 – Updated: 2026-10-06 08:46
VLAI
EPSS
VEX
Title
wifi: cfg80211: don't get the radio mask for netdev-less wdevs
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: cfg80211: don't get the radio mask for netdev-less wdevs
cfg80211_calculate_bi_data() calls rdev_get_radio_mask() with
wdev->netdev, which can be NULL and then crashes in mac80211.
To avoid that, invert the order of checks since wdev->netdev
is always valid for beaconing interfaces.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
abb4cfe3661aa05426916b21164f88ca5a405a3a , < 5b313159c970e945ee125ca87fad0d96ed913e55
(git)
Affected: abb4cfe3661aa05426916b21164f88ca5a405a3a , < 693d777846d525b8b218bad97a1befa5d9bd4334 (git) Affected: abb4cfe3661aa05426916b21164f88ca5a405a3a , < 7166da84a7fe3553f9065782fd80299a37b150e5 (git) Affected: abb4cfe3661aa05426916b21164f88ca5a405a3a , < a7783e585360ee05dfe21d3173dbbe985c94f29e (git) |
guessed | |
| Linux | Linux |
Affected:
6.11
Unaffected: 0 , < 6.11 (semver) Unaffected: 6.12.112 , ≤ 6.12.* (semver) Unaffected: 6.18.54 , ≤ 6.18.* (semver) Unaffected: 7.2.8 , ≤ 7.2.* (semver) Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix) |
guessed |
{
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"programFiles": [
"net/wireless/util.c"
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"versionType": "git"
},
{
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"versionType": "git"
},
{
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"net/wireless/util.c"
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"status": "affected",
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},
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"status": "unaffected",
"version": "0",
"versionType": "semver"
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{
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},
{
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"versionType": "semver"
},
{
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"status": "unaffected",
"version": "7.3-rc4",
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}
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],
"cpeApplicability": [
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{
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},
{
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: don\u0027t get the radio mask for netdev-less wdevs\n\ncfg80211_calculate_bi_data() calls rdev_get_radio_mask() with\nwdev-\u003enetdev, which can be NULL and then crashes in mac80211.\n\nTo avoid that, invert the order of checks since wdev-\u003enetdev\nis always valid for beaconing interfaces."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-06T08:46:35.409Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
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},
{
"url": "https://git.kernel.org/stable/c/693d777846d525b8b218bad97a1befa5d9bd4334"
},
{
"url": "https://git.kernel.org/stable/c/7166da84a7fe3553f9065782fd80299a37b150e5"
},
{
"url": "https://git.kernel.org/stable/c/a7783e585360ee05dfe21d3173dbbe985c94f29e"
}
],
"title": "wifi: cfg80211: don\u0027t get the radio mask for netdev-less wdevs",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
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"datePublished": "2026-10-06T08:46:35.409Z",
"dateReserved": "2026-09-25T10:25:14.343Z",
"dateUpdated": "2026-10-06T08:46:35.409Z",
"state": "PUBLISHED"
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"date": "2026-10-06",
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"percentile": "0.06385"
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{
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"versionType": "semver"
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{
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"version": "7.2.8",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "7.3-rc4",
"versionType": "original_commit_for_fix"
}
]
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}
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: don\u0027t get the radio mask for netdev-less wdevs\n\ncfg80211_calculate_bi_data() calls rdev_get_radio_mask() with\nwdev-\u003enetdev, which can be NULL and then crashes in mac80211.\n\nTo avoid that, invert the order of checks since wdev-\u003enetdev\nis always valid for beaconing interfaces."
}
],
"id": "CVE-2026-98346",
"lastModified": "2026-10-06T09:18:27.633",
"metrics": {},
"published": "2026-10-06T09:18:27.633",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/5b313159c970e945ee125ca87fad0d96ed913e55"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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{
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],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
}
}
}
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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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