Vulnerability-Lookup

FKIE_CVE-2026-74526

Vulnerability from fkie_nvd - Published: 2026-08-15 13:17 - Updated: 2026-08-17 06:19

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit mpi3mr_fault_uevent_emit() runs from the fault watchdog and reset paths where host I/O may already be blocked. GFP_KERNEL allocations here, both the local kzalloc_obj() and the ones inside kobject_uevent_env() itself, can trigger reclaim that waits on that blocked I/O and deadlock. Use memalloc_noio_save()/restore() to cover the whole call instead of just the local allocation.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ccff8c92571500fcfed21281e33daaf645bf692f
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/df817b19dac7034416d18f14347010b3e9f5cf3d

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/mpi3mr/mpi3mr_fw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "df817b19dac7034416d18f14347010b3e9f5cf3d",
              "status": "affected",
              "version": "ec54b348f274fdd2bd32bbe74de6d62ae1a10a18",
              "versionType": "git"
            },
            {
              "lessThan": "ccff8c92571500fcfed21281e33daaf645bf692f",
              "status": "affected",
              "version": "ec54b348f274fdd2bd32bbe74de6d62ae1a10a18",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/mpi3mr/mpi3mr_fw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.0"
            },
            {
              "lessThan": "7.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "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: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit\n\nmpi3mr_fault_uevent_emit() runs from the fault watchdog and reset paths\nwhere host I/O may already be blocked. GFP_KERNEL allocations here, both\nthe local kzalloc_obj() and the ones inside kobject_uevent_env() itself,\ncan trigger reclaim that waits on that blocked I/O and deadlock.\n\nUse memalloc_noio_save()/restore() to cover the whole call instead of\njust the local allocation."
    }
  ],
  "id": "CVE-2026-74526",
  "lastModified": "2026-08-17T06:19:49.460",
  "metrics": {},
  "published": "2026-08-15T13:17:57.883",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ccff8c92571500fcfed21281e33daaf645bf692f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/df817b19dac7034416d18f14347010b3e9f5cf3d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-74526 (GCVE-0-2026-74526)

Vulnerability from cvelistv5 – Published: 2026-08-15 12:27 – Updated: 2026-08-17 05:21

Title

scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/df817b19dac703441…
https://git.kernel.org/stable/c/ccff8c92571500fcf…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ec54b348f274fdd2bd32bbe74de6d62ae1a10a18 , < df817b19dac7034416d18f14347010b3e9f5cf3d (git) Affected: ec54b348f274fdd2bd32bbe74de6d62ae1a10a18 , < ccff8c92571500fcfed21281e33daaf645bf692f (git)
Linux	Linux	Affected: 7.0 Unaffected: 0 , < 7.0 (semver) Unaffected: 7.1.8 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/mpi3mr/mpi3mr_fw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "df817b19dac7034416d18f14347010b3e9f5cf3d",
              "status": "affected",
              "version": "ec54b348f274fdd2bd32bbe74de6d62ae1a10a18",
              "versionType": "git"
            },
            {
              "lessThan": "ccff8c92571500fcfed21281e33daaf645bf692f",
              "status": "affected",
              "version": "ec54b348f274fdd2bd32bbe74de6d62ae1a10a18",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/mpi3mr/mpi3mr_fw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.0"
            },
            {
              "lessThan": "7.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.8",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit\n\nmpi3mr_fault_uevent_emit() runs from the fault watchdog and reset paths\nwhere host I/O may already be blocked. GFP_KERNEL allocations here, both\nthe local kzalloc_obj() and the ones inside kobject_uevent_env() itself,\ncan trigger reclaim that waits on that blocked I/O and deadlock.\n\nUse memalloc_noio_save()/restore() to cover the whole call instead of\njust the local allocation."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:21:09.281Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/df817b19dac7034416d18f14347010b3e9f5cf3d"
        },
        {
          "url": "https://git.kernel.org/stable/c/ccff8c92571500fcfed21281e33daaf645bf692f"
        }
      ],
      "title": "scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74526",
    "datePublished": "2026-08-15T12:27:42.965Z",
    "dateReserved": "2026-08-15T05:44:03.911Z",
    "dateUpdated": "2026-08-17T05:21:09.281Z",
    "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.

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.

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.