Skip to content
Heist/ feed
Back to feed
CriticalFix available

bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself sock_map proto callbacks should never call themselves by design. Protect against bugs like [1] and break out of the recursive loop to avoid a stack overflow in favor of a resource leak. [1] https://lore.kernel.org/all/00000000000073b14905ef2e7401@google.com/

Products
Kernel
Affected versions
Not specified
Fixed versions
5.15.95, 6.1.13
CVEs
CVE-2023-52735
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 10:37 UTC · Revision 1

Source evidence

bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself

core-osv · Original source

Published 21 May 2024, 15:22 UTC

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself sock_map proto callbacks should never call themselves by design. Protect against bugs like [1] and break out of the recursive loop to avoid a stack overflow in favor of a resource leak. [1] https://lore.kernel.org/all/00000000000073b14905ef2e7401@google.com/

osv:CVE-2023-52735

Kernel

Fixed versions: 5.15.95, 6.1.13

Complete source record
{
  "id": "cc4d299a947a6d66bed10dce6933c0ff56ce26d84509c7a87eb88b5c95537262",
  "url": "https://osv.dev/vulnerability/CVE-2023-52735",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself sock_map proto callbacks should never call themselves by design. Protect against bugs like [1] and break out of the recursive loop to avoid a stack overflow in favor of a resource leak. [1] https://lore.kernel.org/all/00000000000073b14905ef2e7401@google.com/",
    "evidence": "osv:CVE-2023-52735",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.95",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.13",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "CVE-2023-52735",
      "aliases": [
        "CVE-2023-52735"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c5cc0d23c5414d23438c5024890e367cc5a0e645"
                },
                {
                  "fixed": "f312367f5246e04df564d341044286e9e37a97ba"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c5d2177a72a1659554922728fc407f59950aa929"
                },
                {
                  "fixed": "7499859881488da97589f3c79cc66fa75748ad49"
                },
                {
                  "fixed": "5b4a79ba65a1ab479903fff2e604865d229b70a9"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5.15.3"
                },
                {
                  "fixed": "5.15.95"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5.14.19"
                },
                {
                  "fixed": "5.15"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0580e47c8895a4d61ee095f086cba1ded7ca5e7f"
                }
              ]
            }
          ],
          "versions": [
            "v5.15.94",
            "v5.15.93",
            "v5.15.92",
            "v5.15.91",
            "v5.15.90",
            "v5.15.89",
            "v5.15.88",
            "v5.15.87",
            "v5.15.86",
            "v5.15.85",
            "v5.15.84",
            "v5.15.83",
            "v5.15.82",
            "v5.15.81",
            "v5.15.80",
            "v5.15.79",
            "v5.15.78",
            "v5.15.77",
            "v5.15.76",
            "v5.15.75",
            "v5.15.74",
            "v5.15.73",
            "v5.15.72",
            "v5.15.71",
            "v5.15.70",
            "v5.15.69",
            "v5.15.68",
            "v5.15.67",
            "v5.15.66",
            "v5.15.65",
            "v5.15.64",
            "v5.15.63",
            "v5.15.62",
            "v5.15.61",
            "v5.15.60",
            "v5.15.59",
            "v5.15.58",
            "v5.15.57",
            "v5.15.56",
            "v5.15.55",
            "v5.15.54",
            "v5.15.53",
            "v5.15.52",
            "v5.15.51",
            "v5.15.50",
            "v5.15.49",
            "v5.15.48",
            "v5.15.47",
            "v5.15.46",
            "v5.15.45",
            "v5.15.44",
            "v5.15.43",
            "v5.15.42",
            "v5.15.41",
            "v5.15.40",
            "v5.15.39",
            "v5.15.38",
            "v5.15.37",
            "v5.15.36",
            "v5.15.35",
            "v5.15.34",
            "v5.15.33",
            "v5.15.32",
            "v5.15.31",
            "v5.15.30",
            "v5.15.29",
            "v5.15.28",
            "v5.15.27",
            "v5.15.26",
            "v5.15.25",
            "v5.15.24",
            "v5.15.23",
            "v5.15.22",
            "v5.15.21",
            "v5.15.20",
            "v5.15.19",
            "v5.15.18",
            "v5.15.17",
            "v5.15.16",
            "v5.15.15",
            "v5.15.14",
            "v5.15.13",
            "v5.15.12",
            "v5.15.11",
            "v5.15.10",
            "v5.15.9",
            "v5.15.8",
            "v5.15.7",
            "v5.15.6",
            "v5.15.5",
            "v5.15.4",
            "v5.15.3",
            "v5.14.21",
            "v5.14.20",
            "v5.14.19"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52735.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5.15.95"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.13"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52735.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.204389990Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/5b4a79ba65a1ab479903fff2e604865d229b70a9",
        "https://git.kernel.org/stable/c/7499859881488da97589f3c79cc66fa75748ad49",
        "https://git.kernel.org/stable/c/f312367f5246e04df564d341044286e9e37a97ba",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52735.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-52735",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52735.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-52735",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 494590,
  "published_at": "2024-05-21T15:22:59.893+00:00"
}