{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e2a7fd22378f6500bcf979edc71e6837271eacfd"
            },
            {
              "fixed": "f84dbbaa988e1344634a20ddf6c7d51a99f12477"
            },
            {
              "fixed": "814c3b4ea357297c507158bceb07bcdc5fbe9808"
            }
          ],
          "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": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74319.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zoned: fix deadlock waiting for ticket during data relocation\n\nWhen performing data relocation on a zoned filesystem, BTRFS can deadlock\nin handle_reserve_tickets(). The relocation process is waiting on a space\nreservation ticket that can never be fulfilled, because the relocation\nitself is the operation responsible for freeing up that space.\n\nFix this by introducing a new flush state,\nBTRFS_RESERVE_FLUSH_ZONED_RELOCATION, specifically for data chunk\nallocation during zoned relocation. Like\nBTRFS_RESERVE_FLUSH_FREE_SPACE_INODE, this state uses\npriority_reclaim_data_space() instead of the normal flushing path, which\navoids re-entering the relocation code and breaking the deadlock cycle.\n\nIn btrfs_alloc_data_chunk_ondemand(), select this new flush state when the\ninode belongs to a data relocation root on a zoned filesystem.",
  "id": "CVE-2026-74319",
  "modified": "2026-08-16T03:31:09.708496424Z",
  "published": "2026-08-15T05:58:16.142Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/814c3b4ea357297c507158bceb07bcdc5fbe9808"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f84dbbaa988e1344634a20ddf6c7d51a99f12477"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74319.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74319"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "btrfs: zoned: fix deadlock waiting for ticket during data relocation"
}