{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7bcb04de982ff0718870112ad9f38c35cbca528b"
            },
            {
              "fixed": "8249dfe46337d599e2087b772a2e32ef9f77282b"
            },
            {
              "fixed": "e549093c11a2fff8430df3dfbdb45eb9811a69a5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.1.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90266.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge\n\nOn a zoned FS, btrfs_delayed_refs_rsv_refill() returns -EAGAIN whenever\nthe over-committed metadata plus the zone_unusable bytes exceeds the\nusable size in a metadata block-group to avoid heavy over-commit of\nmetadata and early ENOSPC in one transaction.\n\nIf this happens while doing reclaim, the transaction is getting aborted.\n\nTreat -EAGAIN as a soft, retryable condition in case of block-group\nreclaim.",
  "id": "CVE-2026-90266",
  "modified": "2026-09-19T03:30:22.945673378Z",
  "published": "2026-09-17T16:08:01.995Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8249dfe46337d599e2087b772a2e32ef9f77282b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e549093c11a2fff8430df3dfbdb45eb9811a69a5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90266.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90266"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "btrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge"
}