Vulnerability-Lookup

FKIE_CVE-2026-89848

Vulnerability from fkie_nvd - Published: 2026-09-16 11:16 - Updated: 2026-09-16 15:18

Severity

8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Quiesce response IRQ before freeing request queue qla2xxx_delete_qpair() deletes the request queue before the response queue. qla25xx_delete_req_que() frees the request queue memory (kfree(req) in qla25xx_free_req_que()), but the response-queue MSI-X is only released later, in qla25xx_free_rsp_que(). In that window the response interrupt can still fire, qla2xxx_msix_rsp_q() queues qpair->q_work, and qla_do_work() -> qla24xx_process_response_queue() dereferences the now-freed rsp->req (LOGINOUT/CT/ELS entries and the status path), a use-after-free. The cancel_work_sync() added for the qpair teardown lives in the response free path, which runs after the request queue is already freed, so it does not protect rsp->req. Release the response-queue interrupt and flush qpair->q_work before deleting the request queue, so no late completion can reach the freed request queue. Clearing have_irq makes the subsequent qla25xx_free_rsp_que() skip its free_irq(), and the firmware queue-delete order (request then response) is preserved; the request-delete mailbox completes on the default vector and is unaffected by dropping the qpair response interrupt early.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/10e9f05f7fd0a103886a867ec8afe621fe4b906a
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1486cc18be3e2b4c2a730f4a1b0448d009381b3d
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/157ca7d1af45f87aa14a286754f19c3f72386988
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/505753ec2594c6af09a601f0dd60be7d840c1d2d
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7ac5be2a8609679fc6bbfea881360444a5ce8202

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/qla2xxx/qla_init.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7ac5be2a8609679fc6bbfea881360444a5ce8202",
              "status": "affected",
              "version": "d74595278f4ab192af66d9e60a9087464638beee",
              "versionType": "git"
            },
            {
              "lessThan": "1486cc18be3e2b4c2a730f4a1b0448d009381b3d",
              "status": "affected",
              "version": "d74595278f4ab192af66d9e60a9087464638beee",
              "versionType": "git"
            },
            {
              "lessThan": "10e9f05f7fd0a103886a867ec8afe621fe4b906a",
              "status": "affected",
              "version": "d74595278f4ab192af66d9e60a9087464638beee",
              "versionType": "git"
            },
            {
              "lessThan": "157ca7d1af45f87aa14a286754f19c3f72386988",
              "status": "affected",
              "version": "d74595278f4ab192af66d9e60a9087464638beee",
              "versionType": "git"
            },
            {
              "lessThan": "505753ec2594c6af09a601f0dd60be7d840c1d2d",
              "status": "affected",
              "version": "d74595278f4ab192af66d9e60a9087464638beee",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/qla2xxx/qla_init.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.10"
            },
            {
              "lessThan": "4.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Quiesce response IRQ before freeing request queue\n\nqla2xxx_delete_qpair() deletes the request queue before the response\nqueue. qla25xx_delete_req_que() frees the request queue memory\n(kfree(req) in qla25xx_free_req_que()), but the response-queue MSI-X is\nonly released later, in qla25xx_free_rsp_que(). In that window the\nresponse interrupt can still fire, qla2xxx_msix_rsp_q() queues\nqpair-\u003eq_work, and qla_do_work() -\u003e qla24xx_process_response_queue()\ndereferences the now-freed rsp-\u003ereq (LOGINOUT/CT/ELS entries and the\nstatus path), a use-after-free.\n\nThe cancel_work_sync() added for the qpair teardown lives in the\nresponse free path, which runs after the request queue is already freed,\nso it does not protect rsp-\u003ereq.\n\nRelease the response-queue interrupt and flush qpair-\u003eq_work before\ndeleting the request queue, so no late completion can reach the freed\nrequest queue. Clearing have_irq makes the subsequent\nqla25xx_free_rsp_que() skip its free_irq(), and the firmware\nqueue-delete order (request then response) is preserved; the\nrequest-delete mailbox completes on the default vector and is unaffected\nby dropping the qpair response interrupt early."
    }
  ],
  "id": "CVE-2026-89848",
  "lastModified": "2026-09-16T15:18:13.107",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-16T11:16:52.197",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/10e9f05f7fd0a103886a867ec8afe621fe4b906a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1486cc18be3e2b4c2a730f4a1b0448d009381b3d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/157ca7d1af45f87aa14a286754f19c3f72386988"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/505753ec2594c6af09a601f0dd60be7d840c1d2d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7ac5be2a8609679fc6bbfea881360444a5ce8202"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-89848 (GCVE-0-2026-89848)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:31 – Updated: 2026-09-16 14:39

Title

scsi: qla2xxx: Quiesce response IRQ before freeing request queue

Summary

Severity

8.1 (High)


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

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/7ac5be2a8609679fc…
https://git.kernel.org/stable/c/1486cc18be3e2b4c2…
https://git.kernel.org/stable/c/10e9f05f7fd0a1038…
https://git.kernel.org/stable/c/157ca7d1af45f87aa…
https://git.kernel.org/stable/c/505753ec2594c6af0…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d74595278f4ab192af66d9e60a9087464638beee , < 7ac5be2a8609679fc6bbfea881360444a5ce8202 (git) Affected: d74595278f4ab192af66d9e60a9087464638beee , < 1486cc18be3e2b4c2a730f4a1b0448d009381b3d (git) Affected: d74595278f4ab192af66d9e60a9087464638beee , < 10e9f05f7fd0a103886a867ec8afe621fe4b906a (git) Affected: d74595278f4ab192af66d9e60a9087464638beee , < 157ca7d1af45f87aa14a286754f19c3f72386988 (git) Affected: d74595278f4ab192af66d9e60a9087464638beee , < 505753ec2594c6af09a601f0dd60be7d840c1d2d (git)
Linux	Linux	Affected: 4.10 Unaffected: 0 , < 4.10 (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.51 , ≤ 6.18.* (semver) Unaffected: 7.2.5 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/qla2xxx/qla_init.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7ac5be2a8609679fc6bbfea881360444a5ce8202",
              "status": "affected",
              "version": "d74595278f4ab192af66d9e60a9087464638beee",
              "versionType": "git"
            },
            {
              "lessThan": "1486cc18be3e2b4c2a730f4a1b0448d009381b3d",
              "status": "affected",
              "version": "d74595278f4ab192af66d9e60a9087464638beee",
              "versionType": "git"
            },
            {
              "lessThan": "10e9f05f7fd0a103886a867ec8afe621fe4b906a",
              "status": "affected",
              "version": "d74595278f4ab192af66d9e60a9087464638beee",
              "versionType": "git"
            },
            {
              "lessThan": "157ca7d1af45f87aa14a286754f19c3f72386988",
              "status": "affected",
              "version": "d74595278f4ab192af66d9e60a9087464638beee",
              "versionType": "git"
            },
            {
              "lessThan": "505753ec2594c6af09a601f0dd60be7d840c1d2d",
              "status": "affected",
              "version": "d74595278f4ab192af66d9e60a9087464638beee",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/qla2xxx/qla_init.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.10"
            },
            {
              "lessThan": "4.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.51",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.5",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Quiesce response IRQ before freeing request queue\n\nqla2xxx_delete_qpair() deletes the request queue before the response\nqueue. qla25xx_delete_req_que() frees the request queue memory\n(kfree(req) in qla25xx_free_req_que()), but the response-queue MSI-X is\nonly released later, in qla25xx_free_rsp_que(). In that window the\nresponse interrupt can still fire, qla2xxx_msix_rsp_q() queues\nqpair-\u003eq_work, and qla_do_work() -\u003e qla24xx_process_response_queue()\ndereferences the now-freed rsp-\u003ereq (LOGINOUT/CT/ELS entries and the\nstatus path), a use-after-free.\n\nThe cancel_work_sync() added for the qpair teardown lives in the\nresponse free path, which runs after the request queue is already freed,\nso it does not protect rsp-\u003ereq.\n\nRelease the response-queue interrupt and flush qpair-\u003eq_work before\ndeleting the request queue, so no late completion can reach the freed\nrequest queue. Clearing have_irq makes the subsequent\nqla25xx_free_rsp_que() skip its free_irq(), and the firmware\nqueue-delete order (request then response) is preserved; the\nrequest-delete mailbox completes on the default vector and is unaffected\nby dropping the qpair response interrupt early."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - qla24xx_process_response_queue() runs from the qla2xxx response-queue MSI-X/work path on firmware-DMAed LOGINOUT/CT/ELS/status IOCBs from Fibre Channel, FCoE, or FCIP traffic; a remote SAN peer can induce those completions without a local syscall, matching sibling CVE-2026-89845 Network scoring of the same teardown window.\nAC:H - The use-after-free requires qla25xx_free_req_que() to kfree the request queue while the response MSI-X is still registered, which occurs only during qpair, NPIV vport, or device teardown, a victim state a fabric attacker cannot initiate.\nPR:N - Response-queue interrupt handling of LOGINOUT/CT/ELS/status completions runs from unauthenticated Fibre Channel firmware IOCBs with no Linux credential or capability check, so a fabric peer needs no account on the victim host.\nUI:N - Response-queue interrupt handling is automatic; concurrent qpair teardown occurs during routine driver remove, NPIV vport deletion, or PCI removal without interactive victim actions such as mounting a filesystem.\nS:U - The use-after-free is inside the host kernel qla2xxx driver and does not cross a VM, IOMMU, or other separate security-authority boundary.\nC:H - After kfree(req), rsp-\u003ereq remains dangling and qla_get_sp_from_handle() reads req-\u003enum_outstanding_cmds and req-\u003eoutstanding_cmds[]; that request-queue use-after-free enables disclosure of reused heap contents.\nI:H - qla2x00_get_sp_from_handle() writes NULL into the freed outstanding_cmds slot, and subsequent LOGINOUT/CT/ELS completion handling operates on a recycled req/srb object, yielding a kernel write and control-flow hijack primitive.\nA:H - Use-after-free of the request queue from qla_do_work()/qla24xx_process_response_queue produces a kernel oops or panic even when not fully exploited, taking down storage served by the adapter."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T14:39:16.899Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7ac5be2a8609679fc6bbfea881360444a5ce8202"
        },
        {
          "url": "https://git.kernel.org/stable/c/1486cc18be3e2b4c2a730f4a1b0448d009381b3d"
        },
        {
          "url": "https://git.kernel.org/stable/c/10e9f05f7fd0a103886a867ec8afe621fe4b906a"
        },
        {
          "url": "https://git.kernel.org/stable/c/157ca7d1af45f87aa14a286754f19c3f72386988"
        },
        {
          "url": "https://git.kernel.org/stable/c/505753ec2594c6af09a601f0dd60be7d840c1d2d"
        }
      ],
      "title": "scsi: qla2xxx: Quiesce response IRQ before freeing request queue",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89848",
    "datePublished": "2026-09-16T10:31:22.197Z",
    "dateReserved": "2026-09-11T19:38:34.770Z",
    "dateUpdated": "2026-09-16T14:39:16.899Z",
    "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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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FKIE_CVE-2026-89848

CVE-2026-89848 (GCVE-0-2026-89848)

Tags

Sightings

Nomenclature

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