FKIE_CVE-2026-80677
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:
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": "2026-08-29T07:16:50.073",
"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"
}
]
},
"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…
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.
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.
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.
Loading…
Loading…