netfilter: nf_tables: prefer nft_chain_validate

{
  "id": "9acc677cd886741249919c784556d99fc73b4c01c23d253d653bca5ef89685be",
  "url": "https://osv.dev/vulnerability/CVE-2024-41042",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "netfilter: nf_tables: prefer nft_chain_validate",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: prefer nft_chain_validate nft_chain_validate already performs loop detection because a cycle will result in a call stack overflow (ctx->level >= NFT_JUMP_STACK_SIZE). It also follows maps via ->validate callback in nft_lookup, so there appears no reason to iterate the maps again. nf_tables_check_loops() and all its helper functions can be removed. This improves ruleset load time significantly, from 23s down to 12s. This also fixes a crash bug. Old loop detection code can result in unbounded recursion: BUG: TASK stack guard page was hit at .... Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN CPU: 4 PID: 1539 Comm: nft Not tainted 6.10.0-rc5+ #1 [..] with a suitable ruleset during validation of register stores. I can't see any actual reason to attempt to check for this from nft_validate_register_store(), at this point the transaction is still in progress, so we don't have a full picture of the rule graph. For nf-next it might make sense to either remove it or make this depend on table->validate_state in case we could catch an error earlier (for improved error reporting to userspace).",
    "evidence": "osv:CVE-2024-41042",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.19.320",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.4.282",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.224",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.165",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.105",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.46",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.9.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-41042",
      "aliases": [
        "CVE-2024-41042"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "20a69341f2d00cd042e81c82289fba8a13c05a25"
                },
                {
                  "fixed": "1947e4c3346faa8ac7e343652c0fd3b3e394202f"
                },
                {
                  "fixed": "cd4348e0a50286282c314ad6d2b0740e7c812c24"
                },
                {
                  "fixed": "31c35f9f89ef585f1edb53e17ac73a0ca4a9712b"
                },
                {
                  "fixed": "8246b7466c8da49d0d9e85e26cbd69dd6d3e3d1e"
                },
                {
                  "fixed": "b6b6e430470e1c3c5513311cb35a15a205595abe"
                },
                {
                  "fixed": "717c91c6ed73e248de6a15bc53adefb81446c9d0"
                },
                {
                  "fixed": "9df785aeb7dcc8efd1d4110bb27d26005298ebae"
                },
                {
                  "fixed": "cff3bd012a9512ac5ed858d38e6ed65f6391008c"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-41042.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "3.13.0"
                },
                {
                  "fixed": "4.19.320"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.20.0"
                },
                {
                  "fixed": "5.4.282"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.224"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.165"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.105"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.46"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.9.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-41042.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.748309639Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1947e4c3346faa8ac7e343652c0fd3b3e394202f",
        "https://git.kernel.org/stable/c/31c35f9f89ef585f1edb53e17ac73a0ca4a9712b",
        "https://git.kernel.org/stable/c/717c91c6ed73e248de6a15bc53adefb81446c9d0",
        "https://git.kernel.org/stable/c/8246b7466c8da49d0d9e85e26cbd69dd6d3e3d1e",
        "https://git.kernel.org/stable/c/9df785aeb7dcc8efd1d4110bb27d26005298ebae",
        "https://git.kernel.org/stable/c/b6b6e430470e1c3c5513311cb35a15a205595abe",
        "https://git.kernel.org/stable/c/cd4348e0a50286282c314ad6d2b0740e7c812c24",
        "https://git.kernel.org/stable/c/cff3bd012a9512ac5ed858d38e6ed65f6391008c",
        "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/41xxx/CVE-2024-41042.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-41042",
        "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/2024/41xxx/CVE-2024-41042.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-41042",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 516816,
  "published_at": "2024-07-29T14:31:55.53+00:00"
}