{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0ae653fbec2b9fbc72c65a0c99528990bfb2136d"
            },
            {
              "fixed": "0e4aaf5a3212b6a469c2489637c29a8e2a5062a5"
            },
            {
              "fixed": "7bdf00ed75c477252578068dba19934cd825f20a"
            },
            {
              "fixed": "4f90c5c2698383984102401b1724b0b67da832ab"
            },
            {
              "fixed": "f15fb3d41543244d1179f423da4a4832a55bc050"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.12.0"
            },
            {
              "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-2026-43393.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies()\n\nFix a chunk map leak in btrfs_map_block(): if we return early with -EINVAL,\nwe're not freeing the chunk map that we've just looked up.",
  "id": "CVE-2026-43393",
  "modified": "2026-07-15T01:49:11.289842533Z",
  "published": "2026-05-08T14:21:37.368Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0e4aaf5a3212b6a469c2489637c29a8e2a5062a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4f90c5c2698383984102401b1724b0b67da832ab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7bdf00ed75c477252578068dba19934cd825f20a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f15fb3d41543244d1179f423da4a4832a55bc050"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43393.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43393"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies()"
}