{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4ac4546821584736798aaa9e97da9f6eaf689ea3"
            },
            {
              "fixed": "83b8802c034e843b83a3e1ef6f30cdd4e9ec291c"
            },
            {
              "fixed": "592226d138378601ae28eb890e2bbc23ec3600f7"
            },
            {
              "fixed": "13860ca37b8df0b856ee1ce3bdbd7c327d5f53e8"
            },
            {
              "fixed": "4cbee026db54cad39c39db4d356100cb133412b3"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.91"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.33"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53084.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: return VMA snapshot from task_vma iterator\n\nHolding the per-VMA lock across the BPF program body creates a lock\nordering problem when helpers acquire locks that depend on mmap_lock:\n\n  vm_lock -\u003e i_rwsem -\u003e mmap_lock -\u003e vm_lock\n\nSnapshot the VMA under the per-VMA lock in _next() via memcpy(), then\ndrop the lock before returning. The BPF program accesses only the\nsnapshot.\n\nThe verifier only trusts vm_mm and vm_file pointers (see\nBTF_TYPE_SAFE_TRUSTED_OR_NULL in verifier.c). vm_file is reference-\ncounted with get_file() under the lock and released via fput() on the\nnext iteration or in _destroy(). vm_mm is already correct because\nlock_vma_under_rcu() verifies vma-\u003evm_mm == mm. All other pointers\nare left as-is by memcpy() since the verifier treats them as untrusted.",
  "id": "CVE-2026-53084",
  "modified": "2026-08-12T03:51:41.900272086Z",
  "published": "2026-06-24T16:30:24.356Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/13860ca37b8df0b856ee1ce3bdbd7c327d5f53e8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4cbee026db54cad39c39db4d356100cb133412b3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/592226d138378601ae28eb890e2bbc23ec3600f7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83b8802c034e843b83a3e1ef6f30cdd4e9ec291c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53084.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53084"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "bpf: return VMA snapshot from task_vma iterator"
}