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linux — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2024-39503

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type Lion Ackermann reported that there is a race condition between namespace cleanup in ipset and the garbage collection of the list:set type. The namespace cleanup can destroy the list:set type of sets while the gc of the set type is waiting to run in rcu cleanup. The latter uses data from the destroyed set which thus leads use after free. The patch contains the following parts: - When destroying all sets, first remove the garbage collectors, then wait if needed and then destroy the sets. - Fix the badly ordered "wait then remove gc" for the destroy a single set case. - Fix the missing rcu locking in the list:set type in the userspace test case. - Use proper RCU list handlings in the list:set type. The patch depends on c1193d9bbbd3 (netfilter: ipset: Add list flush to cancel_gc).

Products
linux
Affected versions
6.1.27-1, 6.1.37-1, 6.1.38-1, 6.1.38-2, 6.1.38-2~bpo11+1, 6.1.38-3, 6.1.38-4, 6.1.38-4~bpo11+1, 6.1.52-1, 6.1.55-1, 6.1.55-1~bpo11+1, 6.1.64-1, 6.1.66-1, 6.1.67-1, 6.1.69-1, 6.1.69-1~bpo11+1, 6.1.76-1, 6.1.76-1~bpo11+1, 6.1.82-1, 6.1.85-1, 6.1.90-1, 6.1.90-1~bpo11+1, 6.1.94-1, 6.1.94-1~bpo11+1, 6.1.98-1
Fixed versions
6.1.99-1, 6.9.7-1
CVEs
CVE-2024-39503
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 16:36 UTC · Revision 1

Source evidence

DEBIAN-CVE-2024-39503

core-osv · Original source

Published 12 Jul 2024, 13:15 UTC

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type Lion Ackermann reported that there is a race condition between namespace cleanup in ipset and the garbage collection of the list:set type. The namespace cleanup can destroy the list:set type of sets while the gc of the set type is waiting to run in rcu cleanup. The latter uses data from the destroyed set which thus leads use after free. The patch contains the following parts: - When destroying all sets, first remove the garbage collectors, then wait if needed and then destroy the sets. - Fix the badly ordered "wait then remove gc" for the destroy a single set case. - Fix the missing rcu locking in the list:set type in the userspace test case. - Use proper RCU list handlings in the list:set type. The patch depends on c1193d9bbbd3 (netfilter: ipset: Add list flush to cancel_gc).

osv:DEBIAN-CVE-2024-39503

linux

Fixed versions: 6.1.99-1

linux

Fixed versions: 6.9.7-1

linux

Fixed versions: 6.9.7-1

Complete source record
{
  "id": "80753c25de760834a01ad28b8c53f8682dc1ed92c43141232ba6ae32d21e94cb",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2024-39503",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2024-39503",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type Lion Ackermann reported that there is a race condition between namespace cleanup in ipset and the garbage collection of the list:set type. The namespace cleanup can destroy the list:set type of sets while the gc of the set type is waiting to run in rcu cleanup. The latter uses data from the destroyed set which thus leads use after free. The patch contains the following parts: - When destroying all sets, first remove the garbage collectors, then wait if needed and then destroy the sets. - Fix the badly ordered \"wait then remove gc\" for the destroy a single set case. - Fix the missing rcu locking in the list:set type in the userspace test case. - Use proper RCU list handlings in the list:set type. The patch depends on c1193d9bbbd3 (netfilter: ipset: Add list flush to cancel_gc).",
    "evidence": "osv:DEBIAN-CVE-2024-39503",
    "products": [
      {
        "name": {
          "value": "linux",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.99-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "6.1.27-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.37-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.38-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.38-2",
            "evidence": "/affected/0/versions"
          },
          {
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            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.38-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.38-4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.38-4~bpo11+1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.52-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.55-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.55-1~bpo11+1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.64-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.66-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.67-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.69-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.69-1~bpo11+1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.76-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.76-1~bpo11+1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.82-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.85-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.90-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.90-1~bpo11+1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.94-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.94-1~bpo11+1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.1.98-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "linux",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.9.7-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "linux",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.9.7-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2024-39503",
      "aliases": [
        "DEBIAN-CVE-2024-39503"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6.1.99-1"
                }
              ]
            }
          ],
          "package": {
            "name": "linux",
            "purl": "pkg:deb/debian/linux?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
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            "6.1.37-1",
            "6.1.38-1",
            "6.1.38-2",
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            "6.1.38-3",
            "6.1.38-4",
            "6.1.38-4~bpo11+1",
            "6.1.52-1",
            "6.1.55-1",
            "6.1.55-1~bpo11+1",
            "6.1.64-1",
            "6.1.66-1",
            "6.1.67-1",
            "6.1.69-1",
            "6.1.69-1~bpo11+1",
            "6.1.76-1",
            "6.1.76-1~bpo11+1",
            "6.1.82-1",
            "6.1.85-1",
            "6.1.90-1",
            "6.1.90-1~bpo11+1",
            "6.1.94-1",
            "6.1.94-1~bpo11+1",
            "6.1.98-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-39503.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6.9.7-1"
                }
              ]
            }
          ],
          "package": {
            "name": "linux",
            "purl": "pkg:deb/debian/linux?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-39503.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6.9.7-1"
                }
              ]
            }
          ],
          "package": {
            "name": "linux",
            "purl": "pkg:deb/debian/linux?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2024-39503.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-15T09:47:34.650277849Z",
      "provider": "osv",
      "upstream": [
        "CVE-2024-39503"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2024-39503"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2024-39503",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 327750,
  "published_at": "2024-07-12T13:15:12.757+00:00"
}