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GHSA-J795-HXRF-343F

Vulnerability from github – Published: 2026-08-15 15:30 – Updated: 2026-08-15 15:30

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-74526"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T13:17:57Z",
    "severity": null
  },
  "details": "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": "GHSA-j795-hxrf-343f",
  "modified": "2026-08-15T15:30:35Z",
  "published": "2026-08-15T15:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74526"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ccff8c92571500fcfed21281e33daaf645bf692f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df817b19dac7034416d18f14347010b3e9f5cf3d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

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.

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

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)

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{
  "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"
          ],
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          "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:*:*:*:*:*:*:*:*",
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                }
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              "operator": "OR"
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      "descriptions": [
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          "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",
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  "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

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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-J795-HXRF-343F

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

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