{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "dd5f9615fc5c5e8d3751aab3a17b92768fb1ce70"
            },
            {
              "fixed": "b9914db13ac15aca3b74544c0bb1a2e0dad1f174"
            },
            {
              "fixed": "b19c0465e4daad5aa8f60552ea0578cf31a11b1e"
            },
            {
              "fixed": "2e57b8cac2ba0d38aac76c1ecdfd8b899e3581a5"
            },
            {
              "fixed": "d11aefe654a04fc41996d254748d6a38b6b0a7be"
            },
            {
              "fixed": "41fb97353ff58fa4f31904c343fc8e3df2f7517d"
            },
            {
              "fixed": "87f2c46003fce4d739138aab4af1942b1afdadac"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.12.0"
            },
            {
              "fixed": "6.1.167"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.130"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.78"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.19"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43359.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix transaction abort on set received ioctl due to item overflow\n\nIf the set received ioctl fails due to an item overflow when attempting to\nadd the BTRFS_UUID_KEY_RECEIVED_SUBVOL we have to abort the transaction\nsince we did some metadata updates before.\n\nThis means that if a user calls this ioctl with the same received UUID\nfield for a lot of subvolumes, we will hit the overflow, trigger the\ntransaction abort and turn the filesystem into RO mode. A malicious user\ncould exploit this, and this ioctl does not even requires that a user\nhas admin privileges (CAP_SYS_ADMIN), only that he/she owns the subvolume.\n\nFix this by doing an early check for item overflow before starting a\ntransaction. This is also race safe because we are holding the subvol_sem\nsemaphore in exclusive (write) mode.\n\nA test case for fstests will follow soon.",
  "id": "CVE-2026-43359",
  "modified": "2026-07-15T01:49:09.205867384Z",
  "published": "2026-05-08T14:21:14.357Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2e57b8cac2ba0d38aac76c1ecdfd8b899e3581a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/41fb97353ff58fa4f31904c343fc8e3df2f7517d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87f2c46003fce4d739138aab4af1942b1afdadac"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b19c0465e4daad5aa8f60552ea0578cf31a11b1e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b9914db13ac15aca3b74544c0bb1a2e0dad1f174"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d11aefe654a04fc41996d254748d6a38b6b0a7be"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43359.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43359"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "btrfs: fix transaction abort on set received ioctl due to item overflow"
}