FKIE_CVE-2026-80646
Vulnerability from fkie_nvd - Published: 2026-08-28 08:16 - Updated: 2026-08-29 07:16
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: guard against possible NULL deref in __in6_dev_stats_get()
dev_get_by_index_rcu() could return NULL if the original physical
device is unregistered.
Found by Sashiko.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"include/net/addrconf.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "a23f2c68c6635e41404f189f8f7ae910738cebdb",
"status": "affected",
"version": "e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f",
"versionType": "git"
},
{
"lessThan": "e14db43677946bf2095febd294bb3c13ab375ab7",
"status": "affected",
"version": "e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f",
"versionType": "git"
},
{
"lessThan": "1a4adfbeb47a212a64539137411f1ca168474d33",
"status": "affected",
"version": "e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f",
"versionType": "git"
},
{
"lessThan": "1e3db30a88815bae6e9d5db6f64ac735e615a07e",
"status": "affected",
"version": "e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f",
"versionType": "git"
},
{
"lessThan": "952426a83ca75cea25c09d58944abafaa3ebd242",
"status": "affected",
"version": "e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f",
"versionType": "git"
},
{
"lessThan": "0db1949084e85a72d174a7dea3259b94fe5a9305",
"status": "affected",
"version": "e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f",
"versionType": "git"
},
{
"lessThan": "fc920c0659cdea5afd8721c1155a51564859e075",
"status": "affected",
"version": "e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f",
"versionType": "git"
},
{
"lessThan": "507541c2a8eeb76c02bd2511958f73a8cfa3e1bc",
"status": "affected",
"version": "e1ae5c2ea4783b1fd87be250f9fcc9d9e1a6ba3f",
"versionType": "git"
},
{
"status": "affected",
"version": "a24963500a4ec921ce9c2597e0a584e44513afae",
"versionType": "git"
},
{
"lessThan": "4.20",
"status": "affected",
"version": "4.19.291",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"include/net/addrconf.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.2"
},
{
"lessThan": "5.2",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.261",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.212",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.178",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.145",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.97",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.40",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"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\nipv6: guard against possible NULL deref in __in6_dev_stats_get()\n\ndev_get_by_index_rcu() could return NULL if the original physical\ndevice is unregistered.\n\nFound by Sashiko."
}
],
"id": "CVE-2026-80646",
"lastModified": "2026-08-29T07:16:48.040",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
}
]
},
"published": "2026-08-28T08:16:49.550",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0db1949084e85a72d174a7dea3259b94fe5a9305"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/1a4adfbeb47a212a64539137411f1ca168474d33"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/1e3db30a88815bae6e9d5db6f64ac735e615a07e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/507541c2a8eeb76c02bd2511958f73a8cfa3e1bc"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/952426a83ca75cea25c09d58944abafaa3ebd242"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/a23f2c68c6635e41404f189f8f7ae910738cebdb"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e14db43677946bf2095febd294bb3c13ab375ab7"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/fc920c0659cdea5afd8721c1155a51564859e075"
}
],
"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.
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.
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