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CVE-2023-53116 (GCVE-0-2023-53116)

Vulnerability from cvelistv5 – Published: 2025-05-02 15:55 – Updated: 2026-08-05 09:12
VLAI
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)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted 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)
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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)
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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(). Para evitar este problema, utilice una variable local para guardar el puntero sq antes de llamar a __nvmet_req_complete(), evitando as\u00ed la desreferenciaci\u00f3n del puntero req despu\u00e9s de esa llamada.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/nvme/target/core.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"a07b4970f464f13640e28e16dad6cfa33647cc99\",\"lessThan\":\"e5d99b29012bbf0e86929403209723b2806500c1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a07b4970f464f13640e28e16dad6cfa33647cc99\",\"lessThan\":\"fafcb4b26393870c45462f9af6a48e581dbbcf7e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a07b4970f464f13640e28e16dad6cfa33647cc99\",\"lessThan\":\"04c394208831d5e0d5cfee46722eb0f033cd4083\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a07b4970f464f13640e28e16dad6cfa33647cc99\",\"lessThan\":\"a6317235da8aa7cb97529ebc8121cc2a4c4c437a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a07b4970f464f13640e28e16dad6cfa33647cc99\",\"lessThan\":\"f1d5888a5efe345b63c430b256e95acb0a475642\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a07b4970f464f13640e28e16dad6cfa33647cc99\",\"lessThan\":\"bcd535f07c58342302a2cd2bdd8894fe0872c8a9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a07b4970f464f13640e28e16dad6cfa33647cc99\",\"lessThan\":\"8ed9813871038b25a934b21ab76b5b7dbf44fc3a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a07b4970f464f13640e28e16dad6cfa33647cc99\",\"lessThan\":\"6173a77b7e9d3e202bdb9897b23f2a8afe7bf286\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/nvme/target/core.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.8\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.8\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.311\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.279\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.238\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.176\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.104\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.21\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.2.8\",\"lessThanOrEqual\":\"6.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.3\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.8\",\"versionEndExcluding\":\"4.14.311\",\"matchCriteriaId\":\"E8E3AE15-4E86-470A-A9EF-BE227AD19F14\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.279\",\"matchCriteriaId\":\"8E21A6F0-EF6A-4BB1-BEC0-09275FA55481\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.238\",\"matchCriteriaId\":\"5FF05A65-6B32-4A9C-905D-6E0F17C6803B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.176\",\"matchCriteriaId\":\"7DA7FEF3-FE10-4D78-94E4-BDCDA7371DD5\"},{\"vulnerab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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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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.


Detection rules are retrieved from Rulezet.


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.