CVE-2026-90262 (GCVE-0-2026-90262)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:07 – Updated: 2026-09-17 16:07
VLAI
Title
btrfs: retry verity reads for not-uptodate Merkle folios
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: retry verity reads for not-uptodate Merkle folios btrfs_read_merkle_tree_page() can find a folio in the mapping that is not uptodate. After taking the folio lock, the current code treats that state as a read error and returns -EIO. That can make a previous transient read failure sticky. If the failed read left a not-uptodate folio in the mapping, later callers find that folio and fail instead of retrying the read. Keep the existing page-cache insertion and locking order, but retry the Merkle item read when a not-uptodate folio is found in the mapping. Also unlock the folio when read_key_bytes() fails so that a later caller can lock it and retry the read.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 06ed09351b67eb1114ae106a87a0ee3ea9adb3db , < 90e9eae1b5907fa36620ffb7f4f1a4afa9333427 (git)
Affected: 06ed09351b67eb1114ae106a87a0ee3ea9adb3db , < c1fa005cdf3b7ff14cdfd7d512830088a3fc256b (git)
Affected: 06ed09351b67eb1114ae106a87a0ee3ea9adb3db , < 12b6d1a1715cbced2e445ca353f9c9987b8636e2 (git)
Affected: 06ed09351b67eb1114ae106a87a0ee3ea9adb3db , < 81241f734f0f662378f5ffc53882b012923e6fe5 (git)
Affected: 06ed09351b67eb1114ae106a87a0ee3ea9adb3db , < 8cc569696dac51fc62bb39b3b8f530582b916d29 (git)
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Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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      "cve": "CVE-2026-90262",
      "id": "CVE-2026-90262",
      "initial_release_date": "2026-09-22T16:29:48Z",
      "product_status:known_affected": "29",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-90262",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-90262.json",
      "version": "2"
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  }
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

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