Vulnerability-Lookup

FKIE_CVE-2026-64003

Vulnerability from fkie_nvd - Published: 2026-07-19 16:17 - Updated: 2026-07-30 14:51

Severity

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

Summary

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Run queues for all non-SDEV_DEL devices from scsi_run_host_queues While a SCSI host is in a recovery state, scsi_mq_requeue_cmd() will not set the requeue list for a requeued command to be kicked in the future. The expectation is a call to scsi_run_host_queues() will kick all SCSI devices once the recovery state is cleared. However, scsi_run_host_queues() uses shost_for_each_device() which uses scsi_device_get() and so will ignore devices in a partially removed state like SDEV_CANCEL. But these devices may also have requeued requests, leaving their requests stuck from not being kicked and causing the removal process of the device to hang. scsi_run_host_queues() needs to run against more devices than the macro shost_for_each_device() allows. Instead of using the too limiting scsi_device_get() state checks, only ignore devices in SDEV_DEL state or when unable to acquire a reference. Attempt to run the queues for all other devices when scsi_run_host_queues() is called.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/15fb19af49f2073ed77fad16aaabc648b0ca6800
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/475f2b37a78f4c698967a7f14f325f04e24c9175
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7205b58702273baf21d6ba7992e6ba15852325f7
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c740e13e7fe32d8e4d9a1699f65b8daf6709895a
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d4dddfecdbb5467bef158d4e1486459808357fef

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/scsi_lib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "15fb19af49f2073ed77fad16aaabc648b0ca6800",
              "status": "affected",
              "version": "8b566edbdbfb5cde31a322c57932694ff48125ed",
              "versionType": "git"
            },
            {
              "lessThan": "d4dddfecdbb5467bef158d4e1486459808357fef",
              "status": "affected",
              "version": "8b566edbdbfb5cde31a322c57932694ff48125ed",
              "versionType": "git"
            },
            {
              "lessThan": "475f2b37a78f4c698967a7f14f325f04e24c9175",
              "status": "affected",
              "version": "8b566edbdbfb5cde31a322c57932694ff48125ed",
              "versionType": "git"
            },
            {
              "lessThan": "c740e13e7fe32d8e4d9a1699f65b8daf6709895a",
              "status": "affected",
              "version": "8b566edbdbfb5cde31a322c57932694ff48125ed",
              "versionType": "git"
            },
            {
              "lessThan": "7205b58702273baf21d6ba7992e6ba15852325f7",
              "status": "affected",
              "version": "8b566edbdbfb5cde31a322c57932694ff48125ed",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/scsi_lib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.5"
            },
            {
              "lessThan": "6.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.143",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "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: core: Run queues for all non-SDEV_DEL devices from scsi_run_host_queues\n\nWhile a SCSI host is in a recovery state, scsi_mq_requeue_cmd() will not\nset the requeue list for a requeued command to be kicked in the future.\nThe expectation is a call to scsi_run_host_queues() will kick all SCSI\ndevices once the recovery state is cleared.\n\nHowever, scsi_run_host_queues() uses shost_for_each_device() which uses\nscsi_device_get() and so will ignore devices in a partially removed\nstate like SDEV_CANCEL. But these devices may also have requeued\nrequests, leaving their requests stuck from not being kicked and causing\nthe removal process of the device to hang.\n\nscsi_run_host_queues() needs to run against more devices than the macro\nshost_for_each_device() allows. Instead of using the too limiting\nscsi_device_get() state checks, only ignore devices in SDEV_DEL state or\nwhen unable to acquire a reference. Attempt to run the queues for all\nother devices when scsi_run_host_queues() is called."
    }
  ],
  "id": "CVE-2026-64003",
  "lastModified": "2026-07-30T14:51:11.223",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-07-19T16:17:39.933",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/15fb19af49f2073ed77fad16aaabc648b0ca6800"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/475f2b37a78f4c698967a7f14f325f04e24c9175"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7205b58702273baf21d6ba7992e6ba15852325f7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c740e13e7fe32d8e4d9a1699f65b8daf6709895a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d4dddfecdbb5467bef158d4e1486459808357fef"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-64003 (GCVE-0-2026-64003)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:56 – Updated: 2026-08-05 12:38

Title

scsi: core: Run queues for all non-SDEV_DEL devices from scsi_run_host_queues

Summary

Severity

7.5 (High)


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

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/15fb19af49f2073ed…
https://git.kernel.org/stable/c/d4dddfecdbb5467be…
https://git.kernel.org/stable/c/475f2b37a78f4c698…
https://git.kernel.org/stable/c/c740e13e7fe32d8e4…
https://git.kernel.org/stable/c/7205b58702273baf2…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 8b566edbdbfb5cde31a322c57932694ff48125ed , < 15fb19af49f2073ed77fad16aaabc648b0ca6800 (git) Affected: 8b566edbdbfb5cde31a322c57932694ff48125ed , < d4dddfecdbb5467bef158d4e1486459808357fef (git) Affected: 8b566edbdbfb5cde31a322c57932694ff48125ed , < 475f2b37a78f4c698967a7f14f325f04e24c9175 (git) Affected: 8b566edbdbfb5cde31a322c57932694ff48125ed , < c740e13e7fe32d8e4d9a1699f65b8daf6709895a (git) Affected: 8b566edbdbfb5cde31a322c57932694ff48125ed , < 7205b58702273baf21d6ba7992e6ba15852325f7 (git)
Linux	Linux	Affected: 6.5 Unaffected: 0 , < 6.5 (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.93 , ≤ 6.12.* (semver) Unaffected: 6.18.35 , ≤ 6.18.* (semver) Unaffected: 7.0.12 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/scsi_lib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "15fb19af49f2073ed77fad16aaabc648b0ca6800",
              "status": "affected",
              "version": "8b566edbdbfb5cde31a322c57932694ff48125ed",
              "versionType": "git"
            },
            {
              "lessThan": "d4dddfecdbb5467bef158d4e1486459808357fef",
              "status": "affected",
              "version": "8b566edbdbfb5cde31a322c57932694ff48125ed",
              "versionType": "git"
            },
            {
              "lessThan": "475f2b37a78f4c698967a7f14f325f04e24c9175",
              "status": "affected",
              "version": "8b566edbdbfb5cde31a322c57932694ff48125ed",
              "versionType": "git"
            },
            {
              "lessThan": "c740e13e7fe32d8e4d9a1699f65b8daf6709895a",
              "status": "affected",
              "version": "8b566edbdbfb5cde31a322c57932694ff48125ed",
              "versionType": "git"
            },
            {
              "lessThan": "7205b58702273baf21d6ba7992e6ba15852325f7",
              "status": "affected",
              "version": "8b566edbdbfb5cde31a322c57932694ff48125ed",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/scsi_lib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.5"
            },
            {
              "lessThan": "6.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.143",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "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": "6.6.143",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.93",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.35",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.12",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: Run queues for all non-SDEV_DEL devices from scsi_run_host_queues\n\nWhile a SCSI host is in a recovery state, scsi_mq_requeue_cmd() will not\nset the requeue list for a requeued command to be kicked in the future.\nThe expectation is a call to scsi_run_host_queues() will kick all SCSI\ndevices once the recovery state is cleared.\n\nHowever, scsi_run_host_queues() uses shost_for_each_device() which uses\nscsi_device_get() and so will ignore devices in a partially removed\nstate like SDEV_CANCEL. But these devices may also have requeued\nrequests, leaving their requests stuck from not being kicked and causing\nthe removal process of the device to hang.\n\nscsi_run_host_queues() needs to run against more devices than the macro\nshost_for_each_device() allows. Instead of using the too limiting\nscsi_device_get() state checks, only ignore devices in SDEV_DEL state or\nwhen unable to acquire a reference. Attempt to run the queues for all\nother devices when scsi_run_host_queues() is called."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The bug is in the SCSI core midlayer reached after host error recovery; on enterprise servers using kernel iSCSI (iscsi_tcp/libiscsi), a remote storage target can inject SCSI failures and then drive session teardown that calls scsi_remove_target(), all over TCP without local access.\nAC:L - A malicious or compromised iSCSI peer controls both sides of the race by timing command failures, non-responsive task-management replies, and connection resets so SCSI EH recovery overlaps with device removal in SDEV_CANCEL.\nPR:N - Exploitation requires no privileges on the victim host; the attacker acts as the remote iSCSI endpoint on an already-established session and needs no CAP_SYS_ADMIN, sysfs writes, or ioctl access.\nUI:N - No end-user action is required during exploitation; recovery and removal are driven automatically by kernel SCSI/iSCSI error-handling once the session exists.\nS:U - Impact is a kernel hang during SCSI device teardown on the same host; it does not cross a VM, IOMMU, or sandbox security boundary.\nC:N - This is a queue-dispatch logic bug that leaves requeued requests stuck; there is no memory corruption, out-of-bounds access, or information disclosure.\nI:N - The flaw prevents requeued I/O from being kicked and blocks removal completion; it does not modify data or provide a write or code-execution primitive.\nA:H - Stuck requeued requests leave devices in SDEV_CANCEL with queues never kicked after recovery, causing the device removal path to hang indefinitely (deadlock), potentially blocking storage teardown, module unload, or shutdown."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:38:03.750Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/15fb19af49f2073ed77fad16aaabc648b0ca6800"
        },
        {
          "url": "https://git.kernel.org/stable/c/d4dddfecdbb5467bef158d4e1486459808357fef"
        },
        {
          "url": "https://git.kernel.org/stable/c/475f2b37a78f4c698967a7f14f325f04e24c9175"
        },
        {
          "url": "https://git.kernel.org/stable/c/c740e13e7fe32d8e4d9a1699f65b8daf6709895a"
        },
        {
          "url": "https://git.kernel.org/stable/c/7205b58702273baf21d6ba7992e6ba15852325f7"
        }
      ],
      "title": "scsi: core: Run queues for all non-SDEV_DEL devices from scsi_run_host_queues",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64003",
    "datePublished": "2026-07-19T14:56:20.172Z",
    "dateReserved": "2026-07-19T07:54:57.026Z",
    "dateUpdated": "2026-08-05T12:38:03.750Z",
    "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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FKIE_CVE-2026-64003

CVE-2026-64003 (GCVE-0-2026-64003)

Tags

Sightings

Nomenclature

Related by attack behaviour