CVE-2023-53116 (GCVE-0-2023-53116)
Vulnerability from cvelistv5 – Published: 2025-05-02 15:55 – Updated: 2026-08-05 09:12
VLAI
EPSS
VEX
Title
nvmet: avoid potential UAF in nvmet_req_complete()
Summary
In the Linux kernel, the following vulnerability has been resolved:
nvmet: avoid potential UAF in nvmet_req_complete()
An nvme target ->queue_response() operation implementation may free the
request passed as argument. Such implementation potentially could result
in a use after free of the request pointer when percpu_ref_put() is
called in nvmet_req_complete().
Avoid such problem by using a local variable to save the sq pointer
before calling __nvmet_req_complete(), thus avoiding dereferencing the
req pointer after that function call.
Severity
9.8 (Critical)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
a07b4970f464f13640e28e16dad6cfa33647cc99 , < e5d99b29012bbf0e86929403209723b2806500c1
(git)
Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < fafcb4b26393870c45462f9af6a48e581dbbcf7e (git) Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < 04c394208831d5e0d5cfee46722eb0f033cd4083 (git) Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < a6317235da8aa7cb97529ebc8121cc2a4c4c437a (git) Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < f1d5888a5efe345b63c430b256e95acb0a475642 (git) Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < bcd535f07c58342302a2cd2bdd8894fe0872c8a9 (git) Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < 8ed9813871038b25a934b21ab76b5b7dbf44fc3a (git) Affected: a07b4970f464f13640e28e16dad6cfa33647cc99 , < 6173a77b7e9d3e202bdb9897b23f2a8afe7bf286 (git) |
guessed | |
| Linux | Linux |
Affected:
4.8
Unaffected: 0 , < 4.8 (semver) Unaffected: 4.14.311 , ≤ 4.14.* (semver) Unaffected: 4.19.279 , ≤ 4.19.* (semver) Unaffected: 5.4.238 , ≤ 5.4.* (semver) Unaffected: 5.10.176 , ≤ 5.10.* (semver) Unaffected: 5.15.104 , ≤ 5.15.* (semver) Unaffected: 6.1.21 , ≤ 6.1.* (semver) Unaffected: 6.2.8 , ≤ 6.2.* (semver) Unaffected: 6.3 , ≤ * (original_commit_for_fix) |
guessed |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: avoid potential UAF in nvmet_req_complete()\n\nAn nvme target -\u003equeue_response() operation implementation may free the\nrequest passed as argument. Such implementation potentially could result\nin a use after free of the request pointer when percpu_ref_put() is\ncalled in nvmet_req_complete().\n\nAvoid such problem by using a local variable to save the sq pointer\nbefore calling __nvmet_req_complete(), thus avoiding dereferencing the\nreq pointer after that function call."
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{
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Such implementation potentially could result\\nin a use after free of the request pointer when percpu_ref_put() is\\ncalled in nvmet_req_complete().\\n\\nAvoid such problem by using a local variable to save the sq pointer\\nbefore calling __nvmet_req_complete(), thus avoiding dereferencing the\\nreq pointer after that function call.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvmet: evitar posible UAF en nvmet_req_complete(). La implementaci\u00f3n de la operaci\u00f3n nvme target -\u0026gt;queue_response() puede liberar la solicitud pasada como argumento. Esta implementaci\u00f3n podr\u00eda provocar un use after free del puntero de solicitud al llamar a percpu_ref_put() en nvmet_req_complete(). 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"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-08-04T19:20:50+00:00",
"cve": "CVE-2023-53116",
"id": "CVE-2023-53116",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_affected": "184",
"product_status:known_not_affected": "90",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: nvmet: avoid potential UAF in nvmet_req_complete()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53116.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-01T01:16:41Z",
"cve": "CVE-2023-53116",
"id": "CVE-2023-53116",
"initial_release_date": "2025-05-03T02:50:23Z",
"product_status:known_affected": "501",
"product_status:known_not_affected": "178",
"product_status:recommended": "243",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2023-53116",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53116.json",
"version": "47"
}
}
}
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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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