CVE-2026-98351 (GCVE-0-2026-98351)
Vulnerability from cvelistv5 – Published: 2026-10-06 08:46 – Updated: 2026-10-06 08:46
VLAI
EPSS
VEX
Title
wifi: virt_wifi: free skb when disconnected
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: virt_wifi: free skb when disconnected
When the simulated link is disconnected, virt_wifi_start_xmit() returns
NET_XMIT_DROP without freeing the skb. dev_hard_start_xmit() treats this
return value as consumed, so every packet sent while disconnected leaks its
skb.
Free the skb before returning the drop status.
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
c7cdba31ed8b87526db978976392802d3f93110c , < 38d3a5df85345f158f78b478b265ca906224454e
(git)
Affected: c7cdba31ed8b87526db978976392802d3f93110c , < ee053ea35c759135460f03d1c574f4ed08de844a (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < d177eca79e1106834bc423d3969a4a2e3987996a (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < 36727a702cf8e3399e3da60d0856378f6afcfb34 (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < 56469996c10a0240653fc00576b4d33bdfb4cc51 (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < 4f266738af45675faa0e8afee08c6e780afa8b06 (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < 46371442847a725cc0df3697fea2eba1dd54b82b (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < f9edf7cf63b96d2b776fca8d258d3c5256e40c8e (git) |
guessed | |
| Linux | Linux |
Affected:
5.0
Unaffected: 0 , < 5.0 (semver) Unaffected: 5.10.271 , ≤ 5.10.* (semver) Unaffected: 5.15.222 , ≤ 5.15.* (semver) Unaffected: 6.1.189 , ≤ 6.1.* (semver) Unaffected: 6.6.158 , ≤ 6.6.* (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 |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/virtual/virt_wifi.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "38d3a5df85345f158f78b478b265ca906224454e",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "ee053ea35c759135460f03d1c574f4ed08de844a",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "d177eca79e1106834bc423d3969a4a2e3987996a",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "36727a702cf8e3399e3da60d0856378f6afcfb34",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "56469996c10a0240653fc00576b4d33bdfb4cc51",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "4f266738af45675faa0e8afee08c6e780afa8b06",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "46371442847a725cc0df3697fea2eba1dd54b82b",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "f9edf7cf63b96d2b776fca8d258d3c5256e40c8e",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/virtual/virt_wifi.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.0"
},
{
"lessThan": "5.0",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"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": "6.12.112",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3-rc4",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.271",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.222",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.189",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.158",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.112",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.54",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2.8",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.3-rc4",
"versionStartIncluding": "5.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: virt_wifi: free skb when disconnected\n\nWhen the simulated link is disconnected, virt_wifi_start_xmit() returns\nNET_XMIT_DROP without freeing the skb. dev_hard_start_xmit() treats this\nreturn value as consumed, so every packet sent while disconnected leaks its\nskb.\n\nFree the skb before returning the drop status."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-06T08:46:39.335Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/38d3a5df85345f158f78b478b265ca906224454e"
},
{
"url": "https://git.kernel.org/stable/c/ee053ea35c759135460f03d1c574f4ed08de844a"
},
{
"url": "https://git.kernel.org/stable/c/d177eca79e1106834bc423d3969a4a2e3987996a"
},
{
"url": "https://git.kernel.org/stable/c/36727a702cf8e3399e3da60d0856378f6afcfb34"
},
{
"url": "https://git.kernel.org/stable/c/56469996c10a0240653fc00576b4d33bdfb4cc51"
},
{
"url": "https://git.kernel.org/stable/c/4f266738af45675faa0e8afee08c6e780afa8b06"
},
{
"url": "https://git.kernel.org/stable/c/46371442847a725cc0df3697fea2eba1dd54b82b"
},
{
"url": "https://git.kernel.org/stable/c/f9edf7cf63b96d2b776fca8d258d3c5256e40c8e"
}
],
"title": "wifi: virt_wifi: free skb when disconnected",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-98351",
"datePublished": "2026-10-06T08:46:39.335Z",
"dateReserved": "2026-09-25T10:25:14.343Z",
"dateUpdated": "2026-10-06T08:46:39.335Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-98351",
"date": "2026-10-06",
"epss": "0.00172",
"percentile": "0.05993"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/virtual/virt_wifi.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "38d3a5df85345f158f78b478b265ca906224454e",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "ee053ea35c759135460f03d1c574f4ed08de844a",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "d177eca79e1106834bc423d3969a4a2e3987996a",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "36727a702cf8e3399e3da60d0856378f6afcfb34",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "56469996c10a0240653fc00576b4d33bdfb4cc51",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "4f266738af45675faa0e8afee08c6e780afa8b06",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "46371442847a725cc0df3697fea2eba1dd54b82b",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
},
{
"lessThan": "f9edf7cf63b96d2b776fca8d258d3c5256e40c8e",
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/virtual/virt_wifi.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.0"
},
{
"lessThan": "5.0",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"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": "6.12.112",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3-rc4",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: virt_wifi: free skb when disconnected\n\nWhen the simulated link is disconnected, virt_wifi_start_xmit() returns\nNET_XMIT_DROP without freeing the skb. dev_hard_start_xmit() treats this\nreturn value as consumed, so every packet sent while disconnected leaks its\nskb.\n\nFree the skb before returning the drop status."
}
],
"id": "CVE-2026-98351",
"lastModified": "2026-10-06T09:18:28.437",
"metrics": {},
"published": "2026-10-06T09:18:28.437",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/36727a702cf8e3399e3da60d0856378f6afcfb34"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/38d3a5df85345f158f78b478b265ca906224454e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/46371442847a725cc0df3697fea2eba1dd54b82b"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/4f266738af45675faa0e8afee08c6e780afa8b06"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/56469996c10a0240653fc00576b4d33bdfb4cc51"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d177eca79e1106834bc423d3969a4a2e3987996a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/ee053ea35c759135460f03d1c574f4ed08de844a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f9edf7cf63b96d2b776fca8d258d3c5256e40c8e"
}
],
"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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