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CVE-2026-98091

Estado: En análisisSin puntuar—

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.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-98091",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "bbbf7243d62d8be73b7ef60721c127b36b2d523e",
              "lessThan": "2a57fb1d5ce8f316b81bbb60e6df245ebc816ffc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bbbf7243d62d8be73b7ef60721c127b36b2d523e",
              "lessThan": "86eff3052054e8f3b059b2d5845b6dcca021f20c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bbbf7243d62d8be73b7ef60721c127b36b2d523e",
              "lessThan": "63bfa52eb3289517aa82cb90e1189385873aae21",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bbbf7243d62d8be73b7ef60721c127b36b2d523e",
              "lessThan": "7fe9dfbca43464baa8f050447a4837587b18adec",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bbbf7243d62d8be73b7ef60721c127b36b2d523e",
              "lessThan": "e9e7e37afa85db770e6084360b21a21a8b3a583f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bbbf7243d62d8be73b7ef60721c127b36b2d523e",
              "lessThan": "8b001df2b37ca022f710f3254fbb0bcd6d9e1bed",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bbbf7243d62d8be73b7ef60721c127b36b2d523e",
              "lessThan": "0ea6814bc0ff7cff443241bd34db9f0f828f3190",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bbbf7243d62d8be73b7ef60721c127b36b2d523e",
              "lessThan": "c93b3c43df561cd9f592cee20ae058b563f9e5b6",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "fs/btrfs/volumes.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.2"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.2",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.7",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "fs/btrfs/volumes.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-25T11:17:38.807",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0ea6814bc0ff7cff443241bd34db9f0f828f3190",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2a57fb1d5ce8f316b81bbb60e6df245ebc816ffc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/63bfa52eb3289517aa82cb90e1189385873aae21",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7fe9dfbca43464baa8f050447a4837587b18adec",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/86eff3052054e8f3b059b2d5845b6dcca021f20c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8b001df2b37ca022f710f3254fbb0bcd6d9e1bed",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c93b3c43df561cd9f592cee20ae058b563f9e5b6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e9e7e37afa85db770e6084360b21a21a8b3a583f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Undergoing Analysis",
  "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->post_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."
    }
  ],
  "lastModified": "2026-10-03T11:18:30.993",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}