FKIE_CVE-2026-80677
Vulnerability from fkie_nvd - Published: 2026-08-28 08:16 - Updated: 2026-10-16 20:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
driver core: use READ_ONCE() for dev->driver in dev_has_sync_state()
dev_has_sync_state() reads dev->driver twice without holding
device_lock() -- once for the NULL check and once to dereference
->sync_state. Some callers only hold device_links_write_lock, which
doesn't prevent a concurrent unbind from clearing dev->driver via
device_unbind_cleanup().
Fix it by reading dev->driver exactly once with READ_ONCE(), pairing
with the WRITE_ONCE() in device_set_driver().
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"include/linux/device.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "89789e4c141904506163dcb91c7289a074573931",
"status": "affected",
"version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
"versionType": "git"
},
{
"lessThan": "51b3e1de53ee5b7775c7ff90e67fdb2665fce938",
"status": "affected",
"version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
"versionType": "git"
},
{
"lessThan": "358697929351f619143f59c6a8a15a4994748b79",
"status": "affected",
"version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
"versionType": "git"
},
{
"lessThan": "5e79e0180515b31b2e2244dc3d256fd8b5a07021",
"status": "affected",
"version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
"versionType": "git"
},
{
"lessThan": "860885fcd2611bca8c28dac8b2c1c7ff160f763e",
"status": "affected",
"version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
"versionType": "git"
},
{
"lessThan": "cc77f0d91e3214e4292208f02a1dc09a31f9aac7",
"status": "affected",
"version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
"versionType": "git"
},
{
"lessThan": "9b0f4082a09760939588135d60a8e9cc994bfa3e",
"status": "affected",
"version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
"versionType": "git"
},
{
"lessThan": "e9506871a8ea304cde48ff4a57226df2aadddae3",
"status": "affected",
"version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
"versionType": "git"
},
{
"status": "affected",
"version": "6d88283a49425eb469aa60ffebe76539e73c933e",
"versionType": "git"
},
{
"lessThan": "5.6",
"status": "affected",
"version": "5.5.13",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"include/linux/device.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.6"
},
{
"lessThan": "5.6",
"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\ndriver core: use READ_ONCE() for dev-\u003edriver in dev_has_sync_state()\n\ndev_has_sync_state() reads dev-\u003edriver twice without holding\ndevice_lock() -- once for the NULL check and once to dereference\n-\u003esync_state. Some callers only hold device_links_write_lock, which\ndoesn\u0027t prevent a concurrent unbind from clearing dev-\u003edriver via\ndevice_unbind_cleanup().\n\nFix it by reading dev-\u003edriver exactly once with READ_ONCE(), pairing\nwith the WRITE_ONCE() in device_set_driver()."
}
],
"id": "CVE-2026-80677",
"lastModified": "2026-10-16T20:18:05.790",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-80677",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-16T19:19:40.926769Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-08-28T08:16:52.983",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/358697929351f619143f59c6a8a15a4994748b79"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/51b3e1de53ee5b7775c7ff90e67fdb2665fce938"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/5e79e0180515b31b2e2244dc3d256fd8b5a07021"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/860885fcd2611bca8c28dac8b2c1c7ff160f763e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/89789e4c141904506163dcb91c7289a074573931"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9b0f4082a09760939588135d60a8e9cc994bfa3e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/cc77f0d91e3214e4292208f02a1dc09a31f9aac7"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e9506871a8ea304cde48ff4a57226df2aadddae3"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
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.
Loading…
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.