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CVE-2026-98090

Estado: En análisisSin puntuar—

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

btrfs: restore active device pointers after failed sprout

btrfs_init_new_device() switches latest_dev and possibly s_bdev from the seed device to the new sprout device before creating the first writable chunks.

If chunk creation or the subsequent sprout setup fails, the error path releases the new device without switching those pointers back. btrfs_show_devname() can then dereference the freed latest_dev and crash.

Restore the active device pointers to the latest seed device before removing and releasing the failed sprout device.

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-2026-98090",
  "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": "a6e7e218a4d6488d56727a7d9aee1b7e78c0c485",
              "lessThan": "46863a9f93186e620c70584f91c8d5d95da83eff",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b7cb29e666fe79dda5dbe5f57fb7c92413bf161c",
              "lessThan": "49179f13c04735c55fd0f43b03696c015b067137",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b7cb29e666fe79dda5dbe5f57fb7c92413bf161c",
              "lessThan": "0a0ee38ad6324ac1603079bb785f784191576bd5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b7cb29e666fe79dda5dbe5f57fb7c92413bf161c",
              "lessThan": "2ee5c4bc11007c51f63f0c1be5d3f07f2b404ff7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b7cb29e666fe79dda5dbe5f57fb7c92413bf161c",
              "lessThan": "e127ac29a52134d0f4cba39d38e4b375deb3d1aa",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b7cb29e666fe79dda5dbe5f57fb7c92413bf161c",
              "lessThan": "b79b4b29003690acfade8241998fc0104ef9c84c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b7cb29e666fe79dda5dbe5f57fb7c92413bf161c",
              "lessThan": "e0b54613aabeb8e9da597f23b90c6a03d0981986",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5.15.11",
              "lessThan": "5.15.222",
              "versionType": "semver"
            }
          ],
          "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": "5.16"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.16",
              "versionType": "semver"
            },
            {
              "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": "2026-09-25T11:17:38.697",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0a0ee38ad6324ac1603079bb785f784191576bd5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2ee5c4bc11007c51f63f0c1be5d3f07f2b404ff7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/46863a9f93186e620c70584f91c8d5d95da83eff",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/49179f13c04735c55fd0f43b03696c015b067137",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b79b4b29003690acfade8241998fc0104ef9c84c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e0b54613aabeb8e9da597f23b90c6a03d0981986",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e127ac29a52134d0f4cba39d38e4b375deb3d1aa",
      "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: restore active device pointers after failed sprout\n\nbtrfs_init_new_device() switches latest_dev and possibly s_bdev from the\nseed device to the new sprout device before creating the first writable\nchunks.\n\nIf chunk creation or the subsequent sprout setup fails, the error path\nreleases the new device without switching those pointers back.\nbtrfs_show_devname() can then dereference the freed latest_dev and crash.\n\nRestore the active device pointers to the latest seed device before\nremoving and releasing the failed sprout device."
    }
  ],
  "lastModified": "2026-10-03T11:18:30.820",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}