Vulnerability-Lookup

FKIE_CVE-2026-52989

Vulnerability from fkie_nvd - Published: 2026-06-24 17:17 - Updated: 2026-06-30 03:20

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers Currently, when nvmet_tcp_build_pdu_iovec() detects an out-of-bounds PDU length or offset, it triggers nvmet_tcp_fatal_error(cmd->queue) and returns early. However, because the function returns void, the callers are entirely unaware that a fatal error has occurred and that the cmd->recv_msg.msg_iter was left uninitialized. Callers such as nvmet_tcp_handle_h2c_data_pdu() proceed to blindly overwrite the queue state with queue->rcv_state = NVMET_TCP_RECV_DATA Consequently, the socket receiving loop may attempt to read incoming network data into the uninitialized iterator. Fix this by shifting the error handling responsibility to the callers.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/046fa5c72d15cd8e2d592e275697ea399d8f76b0
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3df42a854686fa06484e37ac1a3931c8e3e3453c
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c2a11441538bdbbc5aa003f190995eba93a89b88
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d7c8f95f599b3b38a717d2e771c3f8c174f657c3
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ea8e356acb165cb1fd75537a52e1f66e5e76c538
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f9204a2b78dd18374d3bcf9bf93d9021ce22de1b
	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/security/cve/CVE-2026-52989
	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://bugzilla.redhat.com/show_bug.cgi?id=2492443
	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52989.json

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "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": "3df42a854686fa06484e37ac1a3931c8e3e3453c",
              "status": "affected",
              "version": "1385be357e8acd09b36e026567f3a9d5c61139de",
              "versionType": "git"
            },
            {
              "lessThan": "d7c8f95f599b3b38a717d2e771c3f8c174f657c3",
              "status": "affected",
              "version": "dca1a6ba0da9f472ef040525fab10fd9956db59f",
              "versionType": "git"
            },
            {
              "lessThan": "f9204a2b78dd18374d3bcf9bf93d9021ce22de1b",
              "status": "affected",
              "version": "19672ae68d52ff75347ebe2420dde1b07adca09f",
              "versionType": "git"
            },
            {
              "lessThan": "c2a11441538bdbbc5aa003f190995eba93a89b88",
              "status": "affected",
              "version": "ab200d71553bdcf4de554a5985b05b2dd606bc57",
              "versionType": "git"
            },
            {
              "lessThan": "046fa5c72d15cd8e2d592e275697ea399d8f76b0",
              "status": "affected",
              "version": "52a0a98549344ca20ad81a4176d68d28e3c05a5c",
              "versionType": "git"
            },
            {
              "lessThan": "ea8e356acb165cb1fd75537a52e1f66e5e76c538",
              "status": "affected",
              "version": "52a0a98549344ca20ad81a4176d68d28e3c05a5c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "043b4307a99f902697349128fde93b2ddde4686c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "42afe8ed8ad2de9c19457156244ef3e1eca94b5d",
              "versionType": "git"
            },
            {
              "lessThan": "6.1.175",
              "status": "affected",
              "version": "6.1.163",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.141",
              "status": "affected",
              "version": "6.6.124",
              "versionType": "semver"
            },
            {
              "lessThan": "6.12.91",
              "status": "affected",
              "version": "6.12.70",
              "versionType": "semver"
            },
            {
              "lessThan": "6.18.33",
              "status": "affected",
              "version": "6.18.10",
              "versionType": "semver"
            },
            {
              "lessThan": "5.11",
              "status": "affected",
              "version": "5.10.250",
              "versionType": "semver"
            },
            {
              "lessThan": "5.16",
              "status": "affected",
              "version": "5.15.200",
              "versionType": "semver"
            }
          ]
        },
        {
          "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": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.141",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.91",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10"
          ],
          "defaultStatus": "affected",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:6"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Enterprise Linux 6",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
        },
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:9"
          ],
          "defaultStatus": "unaffected",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers\n\nCurrently, when nvmet_tcp_build_pdu_iovec() detects an out-of-bounds\nPDU length or offset, it triggers nvmet_tcp_fatal_error(cmd-\u003equeue)\nand returns early. However, because the function returns void, the\ncallers are entirely unaware that a fatal error has occurred and\nthat the cmd-\u003erecv_msg.msg_iter was left uninitialized.\n\nCallers such as nvmet_tcp_handle_h2c_data_pdu() proceed to blindly\noverwrite the queue state with queue-\u003ercv_state = NVMET_TCP_RECV_DATA\nConsequently, the socket receiving loop may attempt to read incoming\nnetwork data into the uninitialized iterator.\n\nFix this by shifting the error handling responsibility to the callers."
    }
  ],
  "id": "CVE-2026-52989",
  "lastModified": "2026-06-30T03:20:52.557",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-06-24T17:17:09.707",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/046fa5c72d15cd8e2d592e275697ea399d8f76b0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3df42a854686fa06484e37ac1a3931c8e3e3453c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c2a11441538bdbbc5aa003f190995eba93a89b88"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d7c8f95f599b3b38a717d2e771c3f8c174f657c3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ea8e356acb165cb1fd75537a52e1f66e5e76c538"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f9204a2b78dd18374d3bcf9bf93d9021ce22de1b"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/security/cve/CVE-2026-52989"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492443"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52989.json"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-390"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "type": "Secondary"
    }
  ]
}

CVE-2026-52989 (GCVE-0-2026-52989)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:29 – Updated: 2026-06-30 12:09

Title

nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers

Summary

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-390 - Detection of Error Condition Without Action

Assigner

Linux

References

9 references

URL	Tags
https://git.kernel.org/stable/c/3df42a854686fa064…
https://git.kernel.org/stable/c/d7c8f95f599b3b38a…
https://git.kernel.org/stable/c/f9204a2b78dd18374…
https://git.kernel.org/stable/c/c2a11441538bdbbc5…
https://git.kernel.org/stable/c/046fa5c72d15cd8e2…
https://git.kernel.org/stable/c/ea8e356acb165cb1f…
https://access.redhat.com/security/cve/CVE-2026-52989	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2492443	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex

Impacted products

7 products

Vendor	Product	Version
Linux	Linux	Affected: 1385be357e8acd09b36e026567f3a9d5c61139de , < 3df42a854686fa06484e37ac1a3931c8e3e3453c (git) Affected: dca1a6ba0da9f472ef040525fab10fd9956db59f , < d7c8f95f599b3b38a717d2e771c3f8c174f657c3 (git) Affected: 19672ae68d52ff75347ebe2420dde1b07adca09f , < f9204a2b78dd18374d3bcf9bf93d9021ce22de1b (git) Affected: ab200d71553bdcf4de554a5985b05b2dd606bc57 , < c2a11441538bdbbc5aa003f190995eba93a89b88 (git) Affected: 52a0a98549344ca20ad81a4176d68d28e3c05a5c , < 046fa5c72d15cd8e2d592e275697ea399d8f76b0 (git) Affected: 52a0a98549344ca20ad81a4176d68d28e3c05a5c , < ea8e356acb165cb1fd75537a52e1f66e5e76c538 (git) Affected: 043b4307a99f902697349128fde93b2ddde4686c (git) Affected: 42afe8ed8ad2de9c19457156244ef3e1eca94b5d (git) Affected: 6.1.163 , < 6.1.175 (semver) Affected: 6.6.124 , < 6.6.141 (semver) Affected: 6.12.70 , < 6.12.91 (semver) Affected: 6.18.10 , < 6.18.33 (semver) Affected: 5.10.250 , < 5.11 (semver) Affected: 5.15.200 , < 5.16 (semver)
Linux	Linux	Affected: 6.19 Unaffected: 0 , < 6.19 (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:6"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat Enterprise Linux 6",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:7"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat Enterprise Linux 7",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:8"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:9"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat"
          }
        ],
        "datePublic": "2026-06-24T00:00:00.000Z",
        "descriptions": [
          {
            "lang": "en",
            "value": "A flaw was found in the `nvmet-tcp` component of the Linux kernel. The `nvmet_tcp_build_pdu_iovec()` function fails to propagate errors when detecting out-of-bounds PDU lengths or offsets. This can lead to uninitialized memory being used by subsequent operations, such as reading incoming network data into an uninitialized iterator. A remote attacker could potentially exploit this memory corruption to cause a denial of service or achieve arbitrary code execution."
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "namespace": "https://access.redhat.com/security/updates/classification/",
                "value": "Important"
              },
              "type": "Red Hat severity rating"
            }
          },
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "format": "CVSS"
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-390",
                "description": "Detection of Error Condition Without Action",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-30T12:09:41.098Z",
          "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
          "shortName": "redhat-SADP"
        },
        "references": [
          {
            "tags": [
              "vdb-entry",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2026-52989"
          },
          {
            "name": "RHBZ#2492443",
            "tags": [
              "issue-tracking",
              "x_refsource_REDHAT"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492443"
          },
          {
            "tags": [
              "x_sadp-csaf-vex"
            ],
            "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52989.json"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-06-24T00:00:00.000Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-06-24T00:00:00.000Z",
            "value": "Made public."
          }
        ],
        "title": "kernel: nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers",
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "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": "3df42a854686fa06484e37ac1a3931c8e3e3453c",
              "status": "affected",
              "version": "1385be357e8acd09b36e026567f3a9d5c61139de",
              "versionType": "git"
            },
            {
              "lessThan": "d7c8f95f599b3b38a717d2e771c3f8c174f657c3",
              "status": "affected",
              "version": "dca1a6ba0da9f472ef040525fab10fd9956db59f",
              "versionType": "git"
            },
            {
              "lessThan": "f9204a2b78dd18374d3bcf9bf93d9021ce22de1b",
              "status": "affected",
              "version": "19672ae68d52ff75347ebe2420dde1b07adca09f",
              "versionType": "git"
            },
            {
              "lessThan": "c2a11441538bdbbc5aa003f190995eba93a89b88",
              "status": "affected",
              "version": "ab200d71553bdcf4de554a5985b05b2dd606bc57",
              "versionType": "git"
            },
            {
              "lessThan": "046fa5c72d15cd8e2d592e275697ea399d8f76b0",
              "status": "affected",
              "version": "52a0a98549344ca20ad81a4176d68d28e3c05a5c",
              "versionType": "git"
            },
            {
              "lessThan": "ea8e356acb165cb1fd75537a52e1f66e5e76c538",
              "status": "affected",
              "version": "52a0a98549344ca20ad81a4176d68d28e3c05a5c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "043b4307a99f902697349128fde93b2ddde4686c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "42afe8ed8ad2de9c19457156244ef3e1eca94b5d",
              "versionType": "git"
            },
            {
              "lessThan": "6.1.175",
              "status": "affected",
              "version": "6.1.163",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.141",
              "status": "affected",
              "version": "6.6.124",
              "versionType": "semver"
            },
            {
              "lessThan": "6.12.91",
              "status": "affected",
              "version": "6.12.70",
              "versionType": "semver"
            },
            {
              "lessThan": "6.18.33",
              "status": "affected",
              "version": "6.18.10",
              "versionType": "semver"
            },
            {
              "lessThan": "5.11",
              "status": "affected",
              "version": "5.10.250",
              "versionType": "semver"
            },
            {
              "lessThan": "5.16",
              "status": "affected",
              "version": "5.15.200",
              "versionType": "semver"
            }
          ]
        },
        {
          "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": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.141",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.91",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.175",
                  "versionStartIncluding": "6.1.163",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.141",
                  "versionStartIncluding": "6.6.124",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.91",
                  "versionStartIncluding": "6.12.70",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.33",
                  "versionStartIncluding": "6.18.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.10",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.10.250",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.15.200",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers\n\nCurrently, when nvmet_tcp_build_pdu_iovec() detects an out-of-bounds\nPDU length or offset, it triggers nvmet_tcp_fatal_error(cmd-\u003equeue)\nand returns early. However, because the function returns void, the\ncallers are entirely unaware that a fatal error has occurred and\nthat the cmd-\u003erecv_msg.msg_iter was left uninitialized.\n\nCallers such as nvmet_tcp_handle_h2c_data_pdu() proceed to blindly\noverwrite the queue state with queue-\u003ercv_state = NVMET_TCP_RECV_DATA\nConsequently, the socket receiving loop may attempt to read incoming\nnetwork data into the uninitialized iterator.\n\nFix this by shifting the error handling responsibility to the callers."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-28T06:37:43.647Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3df42a854686fa06484e37ac1a3931c8e3e3453c"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7c8f95f599b3b38a717d2e771c3f8c174f657c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/f9204a2b78dd18374d3bcf9bf93d9021ce22de1b"
        },
        {
          "url": "https://git.kernel.org/stable/c/c2a11441538bdbbc5aa003f190995eba93a89b88"
        },
        {
          "url": "https://git.kernel.org/stable/c/046fa5c72d15cd8e2d592e275697ea399d8f76b0"
        },
        {
          "url": "https://git.kernel.org/stable/c/ea8e356acb165cb1fd75537a52e1f66e5e76c538"
        }
      ],
      "title": "nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-52989",
    "datePublished": "2026-06-24T16:29:03.398Z",
    "dateReserved": "2026-06-09T07:44:35.376Z",
    "dateUpdated": "2026-06-30T12:09:41.098Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

FKIE_CVE-2026-52989

CVE-2026-52989 (GCVE-0-2026-52989)

Tags

Sightings

Nomenclature