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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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ccff8c92571500fcfed21281e33daaf645bf692f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/df817b19dac7034416d18f14347010b3e9f5cf3d
Impacted products
Vendor Product Version
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"
}



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