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netfilter: flowtable: validate vlan header

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: validate vlan header Ensure there is sufficient room to access the protocol field of the VLAN header, validate it once before the flowtable lookup. ===================================================== BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline] nf_ingress net/core/dev.c:5440 [inline]

Products
Kernel
Affected versions
Not specified
Fixed versions
5.15.166, 6.1.107, 6.10.7, 6.6.48
CVEs
CVE-2024-44983
Confirmed fixed CVEs
Not specified
Updated in this feed
8 Nov 2026, 01:53 UTC · Revision 1

Source evidence

netfilter: flowtable: validate vlan header

core-osv · Original source

Published 4 Sept 2024, 19:54 UTC

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: validate vlan header Ensure there is sufficient room to access the protocol field of the VLAN header, validate it once before the flowtable lookup. ===================================================== BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline] nf_ingress net/core/dev.c:5440 [inline]

osv:CVE-2024-44983

Kernel

Fixed versions: 5.15.166, 6.1.107, 6.6.48, 6.10.7

Complete source record
{
  "id": "38f77a3470ae35054b369c8a08b55edecf20e9ab3a303fef0c48c68e455f5bb0",
  "url": "https://osv.dev/vulnerability/CVE-2024-44983",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "netfilter: flowtable: validate vlan header",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: validate vlan header Ensure there is sufficient room to access the protocol field of the VLAN header, validate it once before the flowtable lookup. ===================================================== BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline] nf_ingress net/core/dev.c:5440 [inline]",
    "evidence": "osv:CVE-2024-44983",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.166",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.107",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.48",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.10.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-44983",
      "aliases": [
        "CVE-2024-44983"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4cd91f7c290f64fe430867ddbae10bff34657b6a"
                },
                {
                  "fixed": "c05155cc455785916164aa5e1b4605a2ae946537"
                },
                {
                  "fixed": "d9384ae7aec46036d248d1c2c2757e471ab486c3"
                },
                {
                  "fixed": "0279c35d242d037abeb73d60d06a6d1bb7f672d9"
                },
                {
                  "fixed": "043a18bb6cf16adaa2f8642acfde6e8956a9caaa"
                },
                {
                  "fixed": "6ea14ccb60c8ab829349979b22b58a941ec4a3ee"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-44983.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.13.0"
                },
                {
                  "fixed": "5.15.166"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.107"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "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-2024-44983.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.777784127Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0279c35d242d037abeb73d60d06a6d1bb7f672d9",
        "https://git.kernel.org/stable/c/043a18bb6cf16adaa2f8642acfde6e8956a9caaa",
        "https://git.kernel.org/stable/c/6ea14ccb60c8ab829349979b22b58a941ec4a3ee",
        "https://git.kernel.org/stable/c/c05155cc455785916164aa5e1b4605a2ae946537",
        "https://git.kernel.org/stable/c/d9384ae7aec46036d248d1c2c2757e471ab486c3",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/44xxx/CVE-2024-44983.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-44983",
        "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-2024-44983.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-44983",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 521531,
  "published_at": "2024-09-04T19:54:32.83+00:00"
}