CVE-2026-98091 (GCVE-0-2026-98091)

Vulnerability from cvelistv5 – Published: 2026-09-25 10:24 – Updated: 2026-09-25 10:24
VLAI
Title
btrfs: detach failed sprout device from transaction update list
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: detach failed sprout device from transaction update list When creating the first metadata chunk for a sprout filesystem, create_chunk() adds the new device to the transaction dev_update_list through device->post_commit_list. If the subsequent system chunk creation fails, btrfs_init_new_device() aborts the transaction and releases the device while post_commit_list is still linked. This triggers a warning in btrfs_free_device() and leaves the transaction list referencing freed memory. Detach the device while holding chunk_mutex before releasing it.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: bbbf7243d62d8be73b7ef60721c127b36b2d523e , < e9e7e37afa85db770e6084360b21a21a8b3a583f (git)
Affected: bbbf7243d62d8be73b7ef60721c127b36b2d523e , < 8b001df2b37ca022f710f3254fbb0bcd6d9e1bed (git)
Affected: bbbf7243d62d8be73b7ef60721c127b36b2d523e , < 0ea6814bc0ff7cff443241bd34db9f0f828f3190 (git)
Affected: bbbf7243d62d8be73b7ef60721c127b36b2d523e , < c93b3c43df561cd9f592cee20ae058b563f9e5b6 (git)
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Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 6.12.111 , ≤ 6.12.* (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2.7 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc2 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "fs/btrfs/volumes.c"
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: detach failed sprout device from transaction update list\n\nWhen creating the first metadata chunk for a sprout filesystem,\ncreate_chunk() adds the new device to the transaction dev_update_list\nthrough device-\u003epost_commit_list.\n\nIf the subsequent system chunk creation fails, btrfs_init_new_device()\naborts the transaction and releases the device while post_commit_list is\nstill linked. This triggers a warning in btrfs_free_device() and leaves\nthe transaction list referencing freed memory.\n\nDetach the device while holding chunk_mutex before releasing it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-25T10:24:24.082Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/c93b3c43df561cd9f592cee20ae058b563f9e5b6"
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      "title": "btrfs: detach failed sprout device from transaction update list",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98091",
    "datePublished": "2026-09-25T10:24:24.082Z",
    "dateReserved": "2026-09-25T10:19:56.075Z",
    "dateUpdated": "2026-09-25T10:24:24.082Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: detach failed sprout device from transaction update list\n\nWhen creating the first metadata chunk for a sprout filesystem,\ncreate_chunk() adds the new device to the transaction dev_update_list\nthrough device-\u003epost_commit_list.\n\nIf the subsequent system chunk creation fails, btrfs_init_new_device()\naborts the transaction and releases the device while post_commit_list is\nstill linked. This triggers a warning in btrfs_free_device() and leaves\nthe transaction list referencing freed memory.\n\nDetach the device while holding chunk_mutex before releasing it."
          }
        ],
        "id": "CVE-2026-98091",
        "lastModified": "2026-09-25T11:17:38.807",
        "metrics": {},
        "published": "2026-09-25T11:17:38.807",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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