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CVE-2025-38302

Status: AnalyzedMedium (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

block: don't use submit_bio_noacct_nocheck in blk_zone_wplug_bio_work

Bios queued up in the zone write plug have already gone through all all preparation in the submit_bio path, including the freeze protection.

Submitting them through submit_bio_noacct_nocheck duplicates the work and can can cause deadlocks when freezing a queue with pending bio write plugs.

Go straight to ->submit_bio or blk_mq_submit_bio to bypass the superfluous extra freeze protection and checks.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Linux — Linux Kernel

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2025-38302",
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          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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  "published": "2025-07-10T08:15:28.970",
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      "description": [
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          "value": "CWE-667"
        }
      ]
    }
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: don't use submit_bio_noacct_nocheck in blk_zone_wplug_bio_work\n\nBios queued up in the zone write plug have already gone through all all\npreparation in the submit_bio path, including the freeze protection.\n\nSubmitting them through submit_bio_noacct_nocheck duplicates the work\nand can can cause deadlocks when freezing a queue with pending bio\nwrite plugs.\n\nGo straight to ->submit_bio or blk_mq_submit_bio to bypass the\nsuperfluous extra freeze protection and checks."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bloque: no usar submit_bio_noacct_nocheck en blk_zone_wplug_bio_work. Las BIOS en cola en el complemento de escritura de zona ya han pasado por toda la preparación en la ruta submit_bio, incluida la protección contra congelamiento. Enviarlas mediante submit_bio_noacct_nocheck duplica el trabajo y puede causar interbloqueos al congelar una cola con complementos de escritura de BIOS pendientes. Vaya directamente a ->submit_bio o blk_mq_submit_bio para omitir la protección contra congelamiento y las comprobaciones adicionales innecesarias."
    }
  ],
  "lastModified": "2026-06-17T09:16:34.930",
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}