Vulnerability-Lookup

GHSA-QM6R-96CC-Q36W

Vulnerability from github – Published: 2026-05-08 15:31 – Updated: 2026-05-11 09:30

Details

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla2xxx: Completely fix fcport double free

In qla24xx_els_dcmd_iocb() sp->free is set to qla2x00_els_dcmd_sp_free(). When an error happens, this function is called by qla2x00_sp_release(), when kref_put() releases the first and the last reference.

qla2x00_els_dcmd_sp_free() frees fcport by calling qla2x00_free_fcport(). Doing it one more time after kref_put() is a bad idea.

Severity

9.8 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-43414"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-08T15:16:53Z",
    "severity": "CRITICAL"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Completely fix fcport double free\n\nIn qla24xx_els_dcmd_iocb() sp-\u003efree is set to qla2x00_els_dcmd_sp_free().\nWhen an error happens, this function is called by qla2x00_sp_release(),\nwhen kref_put() releases the first and the last reference.\n\nqla2x00_els_dcmd_sp_free() frees fcport by calling qla2x00_free_fcport().\nDoing it one more time after kref_put() is a bad idea.",
  "id": "GHSA-qm6r-96cc-q36w",
  "modified": "2026-05-11T09:30:31Z",
  "published": "2026-05-08T15:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43414"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0b7da13a04bd70ef6070bfb9ea85f582294560a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d48ea85463f5b34f7b92ea0a13eddf1ab993da7b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-43414 (GCVE-0-2026-43414)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:21 – Updated: 2026-08-05 12:27

Title

scsi: qla2xxx: Completely fix fcport double free

Summary

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Completely fix fcport double free In qla24xx_els_dcmd_iocb() sp->free is set to qla2x00_els_dcmd_sp_free(). When an error happens, this function is called by qla2x00_sp_release(), when kref_put() releases the first and the last reference. qla2x00_els_dcmd_sp_free() frees fcport by calling qla2x00_free_fcport(). Doing it one more time after kref_put() is a bad idea.

Severity

9.8 (Critical)


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

Assigner

Linux mitre root Scorecard

References

2 references

URL	Tags
https://git.kernel.org/stable/c/d48ea85463f5b34f7…
https://git.kernel.org/stable/c/c0b7da13a04bd70ef…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 4895009c4bb72f71f2e682f1e7d2c2d96e482087 , < d48ea85463f5b34f7b92ea0a13eddf1ab993da7b (git) Affected: 4895009c4bb72f71f2e682f1e7d2c2d96e482087 , < c0b7da13a04bd70ef6070bfb9ea85f582294560a (git) Affected: 7861213201838480dc222634c56fb6db113d010d (git) Affected: 3b9d72442adfbc9ddb0f76dd1b03977b3a578b16 (git) Affected: ef23850940d9a52c39936d27254824ccf5e9b6bd (git) Affected: 6c6bf6cacf9461f8d301cfac4f9c175d80cbcc63 (git) Affected: cd10dee1f07a782f5aa05703c55299ca86a85ee4 (git) Affected: b03e626bd6d3f0684f56ee1890d70fc9ca991c04 (git) Affected: 282877633b25d67021a34169c5b5519b1d4ef65e (git) Affected: f85af9f1aa5e2f53694a6cbe72010f754b5ff862 (git) Affected: 9b43d2884b54d415caab48878b526dfe2ae9921b (git) Affected: 846fb9f112f618ec6ae181d8dae7961652574774 (git) Affected: 5.15.154 , < 5.16 (semver) Affected: 6.1.84 , < 6.2 (semver) Affected: 6.6.24 , < 6.7 (semver) Affected: 6.7.12 , < 6.8 (semver) Affected: 6.8.3 , < 6.9 (semver)
Linux	Linux	Affected: 6.9 Unaffected: 0 , < 6.9 (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/qla2xxx/qla_iocb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d48ea85463f5b34f7b92ea0a13eddf1ab993da7b",
              "status": "affected",
              "version": "4895009c4bb72f71f2e682f1e7d2c2d96e482087",
              "versionType": "git"
            },
            {
              "lessThan": "c0b7da13a04bd70ef6070bfb9ea85f582294560a",
              "status": "affected",
              "version": "4895009c4bb72f71f2e682f1e7d2c2d96e482087",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "7861213201838480dc222634c56fb6db113d010d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3b9d72442adfbc9ddb0f76dd1b03977b3a578b16",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ef23850940d9a52c39936d27254824ccf5e9b6bd",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6c6bf6cacf9461f8d301cfac4f9c175d80cbcc63",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cd10dee1f07a782f5aa05703c55299ca86a85ee4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b03e626bd6d3f0684f56ee1890d70fc9ca991c04",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "282877633b25d67021a34169c5b5519b1d4ef65e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f85af9f1aa5e2f53694a6cbe72010f754b5ff862",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9b43d2884b54d415caab48878b526dfe2ae9921b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "846fb9f112f618ec6ae181d8dae7961652574774",
              "versionType": "git"
            },
            {
              "lessThan": "5.16",
              "status": "affected",
              "version": "5.15.154",
              "versionType": "semver"
            },
            {
              "lessThan": "6.2",
              "status": "affected",
              "version": "6.1.84",
              "versionType": "semver"
            },
            {
              "lessThan": "6.7",
              "status": "affected",
              "version": "6.6.24",
              "versionType": "semver"
            },
            {
              "lessThan": "6.8",
              "status": "affected",
              "version": "6.7.12",
              "versionType": "semver"
            },
            {
              "lessThan": "6.9",
              "status": "affected",
              "version": "6.8.3",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/qla2xxx/qla_iocb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
            {
              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.9",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.15.154",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.1.84",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.7.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.8.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.15.154",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.1.84",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.7.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.8.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Completely fix fcport double free\n\nIn qla24xx_els_dcmd_iocb() sp-\u003efree is set to qla2x00_els_dcmd_sp_free().\nWhen an error happens, this function is called by qla2x00_sp_release(),\nwhen kref_put() releases the first and the last reference.\n\nqla2x00_els_dcmd_sp_free() frees fcport by calling qla2x00_free_fcport().\nDoing it one more time after kref_put() is a bad idea."
        }
      ],
      "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"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable ELS direct-command path is reachable from a remote Fibre Channel initiator through qla2xxx target-mode ELS/session-deletion handling, not only through the root-only sysfs issue_logo knob. Using the highest reasonable SAN deployment, attacker-controlled FC frames from another host on the storage fabric make this network-reachable.\nAC:L - The bug is a deterministic double free once the ELS direct-command error path is hit after kref_put(), and the attacker can plausibly drive repeated logins/logouts/session teardown plus resource pressure to make qla2x00_start_sp() fail. No uncontrollable race is required for the memory corruption once that path is reached.\nPR:N - The FC target path processes remote ELS events before any Linux credential or capability check on the victim, so the attacker does not need a local account or kernel privilege. Fabric access/zoning is environmental network access, not privileges on the vulnerable system.\nUI:N - No victim user action is required; remote FC protocol activity can drive the target-mode session deletion and LOGO path. The sysfs path requires an admin write, but it is not the highest-severity reachable path.\nS:U - The corruption occurs inside the same kernel/driver security authority and does not cross a VM, IOMMU, or other separate security boundary. A kernel compromise or crash remains unchanged scope.\nC:H - This is kernel heap double-free/use-after-free style memory corruption of an fc_port object. Under the required overestimation rule, such corruption can be leveraged for information disclosure through heap reuse/read primitives.\nI:H - A double free of a kernel heap object can corrupt allocator state or enable controlled reuse of freed memory, making arbitrary write or control-flow compromise defensible. Therefore integrity impact is High.\nA:H - Related qla2xxx fcport double-free reports show immediate SLUB/kernel BUG crashes, and this fix removes another remaining double-free error path. A remotely triggerable kernel crash is High availability impact."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:27:52.557Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d48ea85463f5b34f7b92ea0a13eddf1ab993da7b"
        },
        {
          "url": "https://git.kernel.org/stable/c/c0b7da13a04bd70ef6070bfb9ea85f582294560a"
        }
      ],
      "title": "scsi: qla2xxx: Completely fix fcport double free",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43414",
    "datePublished": "2026-05-08T14:21:51.604Z",
    "dateReserved": "2026-05-01T14:12:56.008Z",
    "dateUpdated": "2026-08-05T12:27:52.557Z",
    "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.

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.
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GHSA-QM6R-96CC-Q36W

CVE-2026-43414 (GCVE-0-2026-43414)

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