GHSA-MVJQ-GQ62-VXRR
Vulnerability from github – Published: 2026-04-22 15:31 – Updated: 2026-04-28 00:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
tracing: Fix potential deadlock in cpu hotplug with osnoise
The following sequence may leads deadlock in cpu hotplug:
task1 task2 task3
----- ----- -----
mutex_lock(&interface_lock)
[CPU GOING OFFLINE]
cpus_write_lock();
osnoise_cpu_die();
kthread_stop(task3);
wait_for_completion();
osnoise_sleep();
mutex_lock(&interface_lock);
cpus_read_lock();
[DEAD LOCK]
Fix by swap the order of cpus_read_lock() and mutex_lock(&interface_lock).
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-31480"
],
"database_specific": {
"cwe_ids": [
"CWE-667"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-22T14:16:45Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix potential deadlock in cpu hotplug with osnoise\n\nThe following sequence may leads deadlock in cpu hotplug:\n\n task1 task2 task3\n ----- ----- -----\n\n mutex_lock(\u0026interface_lock)\n\n [CPU GOING OFFLINE]\n\n cpus_write_lock();\n osnoise_cpu_die();\n kthread_stop(task3);\n wait_for_completion();\n\n osnoise_sleep();\n mutex_lock(\u0026interface_lock);\n\n cpus_read_lock();\n\n [DEAD LOCK]\n\nFix by swap the order of cpus_read_lock() and mutex_lock(\u0026interface_lock).",
"id": "GHSA-mvjq-gq62-vxrr",
"modified": "2026-04-28T00:31:40Z",
"published": "2026-04-22T15:31:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31480"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/03474a01c199de17a8e2d39b51df6beb9c76e831"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1f9885732248d22f788e4992c739a98c88ab8a55"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7aa095ce7d224308cb6979956f0de8607df93d4f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cf929c21eeed5bd39873fb14bfdfff963fa6f1da"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ef41a85a55022e27cdaebf22a6676910b66f65aa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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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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