GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2026-23179 (GCVE-0-2026-23179)

Vulnerability from cvelistv5 – Published: 2026-02-14 16:27 – Updated: 2026-05-11 22:01
VLAI
Title
nvmet-tcp: fixup hang in nvmet_tcp_listen_data_ready()
Summary
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: fixup hang in nvmet_tcp_listen_data_ready() When the socket is closed while in TCP_LISTEN a callback is run to flush all outstanding packets, which in turns calls nvmet_tcp_listen_data_ready() with the sk_callback_lock held. So we need to check if we are in TCP_LISTEN before attempting to get the sk_callback_lock() to avoid a deadlock.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 675b453e024154dd547921c6e6d5b58747ba7e0e , < 6e0c7503a5803d568d56a9f9bca662cd94a14908 (git)
Affected: 675b453e024154dd547921c6e6d5b58747ba7e0e , < 1c90f930e7b410dd2d75a2a19a85e19c64e98ad5 (git)
Affected: 675b453e024154dd547921c6e6d5b58747ba7e0e , < 2fa8961d3a6a1c2395d8d560ffed2c782681bade (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 6.12.70 , ≤ 6.12.* (semver)
Unaffected: 6.18.10 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/tcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6e0c7503a5803d568d56a9f9bca662cd94a14908",
              "status": "affected",
              "version": "675b453e024154dd547921c6e6d5b58747ba7e0e",
              "versionType": "git"
            },
            {
              "lessThan": "1c90f930e7b410dd2d75a2a19a85e19c64e98ad5",
              "status": "affected",
              "version": "675b453e024154dd547921c6e6d5b58747ba7e0e",
              "versionType": "git"
            },
            {
              "lessThan": "2fa8961d3a6a1c2395d8d560ffed2c782681bade",
              "status": "affected",
              "version": "675b453e024154dd547921c6e6d5b58747ba7e0e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/tcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.70",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.70",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.10",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-tcp: fixup hang in nvmet_tcp_listen_data_ready()\n\nWhen the socket is closed while in TCP_LISTEN a callback is run to\nflush all outstanding packets, which in turns calls\nnvmet_tcp_listen_data_ready() with the sk_callback_lock held.\nSo we need to check if we are in TCP_LISTEN before attempting\nto get the sk_callback_lock() to avoid a deadlock."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:01:51.043Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6e0c7503a5803d568d56a9f9bca662cd94a14908"
        },
        {
          "url": "https://git.kernel.org/stable/c/1c90f930e7b410dd2d75a2a19a85e19c64e98ad5"
        },
        {
          "url": "https://git.kernel.org/stable/c/2fa8961d3a6a1c2395d8d560ffed2c782681bade"
        }
      ],
      "title": "nvmet-tcp: fixup hang in nvmet_tcp_listen_data_ready()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23179",
    "datePublished": "2026-02-14T16:27:10.778Z",
    "dateReserved": "2026-01-13T15:37:45.984Z",
    "dateUpdated": "2026-05-11T22:01:51.043Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-23179",
      "date": "2026-09-17",
      "epss": "0.00173",
      "percentile": "0.07036"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23179\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-02-14T17:15:55.643\",\"lastModified\":\"2026-06-17T10:21:02.857\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnvmet-tcp: fixup hang in nvmet_tcp_listen_data_ready()\\n\\nWhen the socket is closed while in TCP_LISTEN a callback is run to\\nflush all outstanding packets, which in turns calls\\nnvmet_tcp_listen_data_ready() with the sk_callback_lock held.\\nSo we need to check if we are in TCP_LISTEN before attempting\\nto get the sk_callback_lock() to avoid a deadlock.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\\n\\nnvmet-tcp: corregir cuelgue en nvmet_tcp_listen_data_ready()\\n\\nCuando el socket se cierra mientras est\u00e1 en TCP_LISTEN, se ejecuta una devoluci\u00f3n de llamada para vaciar todos los paquetes pendientes, lo que a su vez llama a nvmet_tcp_listen_data_ready() con el sk_callback_lock retenido. As\u00ed que necesitamos verificar si estamos en TCP_LISTEN antes de intentar obtener el sk_callback_lock() para evitar un interbloqueo.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/nvme/target/tcp.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"675b453e024154dd547921c6e6d5b58747ba7e0e\",\"lessThan\":\"6e0c7503a5803d568d56a9f9bca662cd94a14908\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"675b453e024154dd547921c6e6d5b58747ba7e0e\",\"lessThan\":\"1c90f930e7b410dd2d75a2a19a85e19c64e98ad5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"675b453e024154dd547921c6e6d5b58747ba7e0e\",\"lessThan\":\"2fa8961d3a6a1c2395d8d560ffed2c782681bade\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/nvme/target/tcp.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.7\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.7\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.70\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.10\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1c90f930e7b410dd2d75a2a19a85e19c64e98ad5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2fa8961d3a6a1c2395d8d560ffed2c782681bade\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6e0c7503a5803d568d56a9f9bca662cd94a14908\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T11:47:26+00:00",
      "cve": "CVE-2026-23179",
      "id": "CVE-2026-23179",
      "initial_release_date": "2026-02-14T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nvmet-tcp: fixup hang in nvmet_tcp_listen_data_ready()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23179.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.