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vsock: fix recursive ->recvmsg calls

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: vsock: fix recursive ->recvmsg calls After a vsock socket has been added to a BPF sockmap, its prot->recvmsg has been replaced with vsock_bpf_recvmsg(). Thus the following recursiion could happen: vsock_bpf_recvmsg() -> __vsock_recvmsg() -> vsock_connectible_recvmsg() -> prot->recvmsg() -> vsock_bpf_recvmsg() again We need to fix it by calling the original ->recvmsg() without any BPF sockmap logic in __vsock_recvmsg().

Products
Kernel
Affected versions
Not specified
Fixed versions
6.10.7, 6.6.48
CVEs
CVE-2024-44996
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 17:36 UTC · Revision 1

Source evidence

vsock: fix recursive ->recvmsg calls

core-osv · Original source

Published 4 Sept 2024, 19:54 UTC

In the Linux kernel, the following vulnerability has been resolved: vsock: fix recursive ->recvmsg calls After a vsock socket has been added to a BPF sockmap, its prot->recvmsg has been replaced with vsock_bpf_recvmsg(). Thus the following recursiion could happen: vsock_bpf_recvmsg() -> __vsock_recvmsg() -> vsock_connectible_recvmsg() -> prot->recvmsg() -> vsock_bpf_recvmsg() again We need to fix it by calling the original ->recvmsg() without any BPF sockmap logic in __vsock_recvmsg().

osv:CVE-2024-44996

Kernel

Fixed versions: 6.6.48, 6.10.7

Complete source record
{
  "id": "c9c482c2b71636b6f9e35c43baebe76e7e02259705554d436d5a5711674d3f35",
  "url": "https://osv.dev/vulnerability/CVE-2024-44996",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "vsock: fix recursive ->recvmsg calls",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: vsock: fix recursive ->recvmsg calls After a vsock socket has been added to a BPF sockmap, its prot->recvmsg has been replaced with vsock_bpf_recvmsg(). Thus the following recursiion could happen: vsock_bpf_recvmsg() -> __vsock_recvmsg() -> vsock_connectible_recvmsg() -> prot->recvmsg() -> vsock_bpf_recvmsg() again We need to fix it by calling the original ->recvmsg() without any BPF sockmap logic in __vsock_recvmsg().",
    "evidence": "osv:CVE-2024-44996",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.48",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.10.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-44996",
      "aliases": [
        "CVE-2024-44996"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "634f1a7110b439c65fd8a809171c1d2d28bcea6f"
                },
                {
                  "fixed": "921f1acf0c3cf6b1260ab57a8a6e8b3d5f3023d5"
                },
                {
                  "fixed": "b4ee8cf1acc5018ed1369150d7bb3e0d0f79e135"
                },
                {
                  "fixed": "69139d2919dd4aa9a553c8245e7c63e82613e3fc"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-44996.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.4.0"
                },
                {
                  "fixed": "6.6.48"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.10.7"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-44996.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.941039496Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/69139d2919dd4aa9a553c8245e7c63e82613e3fc",
        "https://git.kernel.org/stable/c/921f1acf0c3cf6b1260ab57a8a6e8b3d5f3023d5",
        "https://git.kernel.org/stable/c/b4ee8cf1acc5018ed1369150d7bb3e0d0f79e135",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/44xxx/CVE-2024-44996.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-44996",
        "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/2024/44xxx/CVE-2024-44996.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-44996",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 497902,
  "published_at": "2024-09-04T19:54:41.513+00:00"
}