CVE-2026-98090 (GCVE-0-2026-98090)

Vulnerability from cvelistv5 – Published: 2026-09-25 10:24 – Updated: 2026-10-19 09:13
VLAI
Title
btrfs: restore active device pointers after failed sprout
Summary
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.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6996 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a6e7e218a4d6488d56727a7d9aee1b7e78c0c485 , < 46863a9f93186e620c70584f91c8d5d95da83eff (git)
Affected: b7cb29e666fe79dda5dbe5f57fb7c92413bf161c , < 49179f13c04735c55fd0f43b03696c015b067137 (git)
Affected: b7cb29e666fe79dda5dbe5f57fb7c92413bf161c , < 0a0ee38ad6324ac1603079bb785f784191576bd5 (git)
Affected: b7cb29e666fe79dda5dbe5f57fb7c92413bf161c , < 2ee5c4bc11007c51f63f0c1be5d3f07f2b404ff7 (git)
Affected: b7cb29e666fe79dda5dbe5f57fb7c92413bf161c , < e127ac29a52134d0f4cba39d38e4b375deb3d1aa (git)
Affected: b7cb29e666fe79dda5dbe5f57fb7c92413bf161c , < b79b4b29003690acfade8241998fc0104ef9c84c (git)
Affected: b7cb29e666fe79dda5dbe5f57fb7c92413bf161c , < e0b54613aabeb8e9da597f23b90c6a03d0981986 (git)
Affected: 5.15.11 , < 5.15.222 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 5.15.222 , ≤ 5.15.* (semver)
Unaffected: 6.1.189 , ≤ 6.1.* (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (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 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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          "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."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:13:42.367Z",
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    "dateReserved": "2026-09-25T10:19:56.075Z",
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      "id": "msrc_CVE-2026-98090",
      "initial_release_date": "2026-09-28T01:49:41.000Z",
      "product_status:fixed": "1",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "btrfs: restore active device pointers after failed sprout",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-98090.json",
      "version": "3"
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            "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."
          }
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        "id": "CVE-2026-98090",
        "lastModified": "2026-10-19T10:18:05.583",
        "metrics": {},
        "published": "2026-09-25T11:17:38.697",
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      "cve": "CVE-2026-98090",
      "id": "CVE-2026-98090",
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      "status": "interim",
      "title": "SUSE CVE CVE-2026-98090",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-98090.json",
      "version": "4"
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}



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