ipv6: prevent possible NULL dereference in rt6_probe()

{
  "id": "6461e8e5867cf0cbe5759bf478d04afd42499d22061a2788ebef43ad3439a45b",
  "url": "https://osv.dev/vulnerability/CVE-2024-40960",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ipv6: prevent possible NULL dereference in rt6_probe()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible NULL dereference in rt6_probe() syzbot caught a NULL dereference in rt6_probe() [1] Bail out if __in6_dev_get() returns NULL. [1] Oops: general protection fault, probably for non-canonical address 0xdffffc00000000cb: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000658-0x000000000000065f] CPU: 1 PID: 22444 Comm: syz-executor.0 Not tainted 6.10.0-rc2-syzkaller-00383-gb8481381d4e2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:rt6_probe net/ipv6/route.c:656 [inline] RIP: 0010:find_match+0x8c4/0xf50 net/ipv6/route.c:758 Code: 14 fd f7 48 8b 85 38 ff ff ff 48 c7 45 b0 00 00 00 00 48 8d b8 5c 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 19 RSP: 0018:ffffc900034af070 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90004521000 RDX: 00000000000000cb RSI: ffffffff8990d0cd RDI: 000000000000065c RBP: ffffc900034af150 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000002 R12: 000000000000000a R13: 1ffff92000695e18 R14: ffff8880244a1d20 R15: 0000000000000000 FS: 00007f4844a5a6c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31b27000 CR3: 000000002d42c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 00000000",
    "evidence": "osv:CVE-2024-40960",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.19.317",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.4.279",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.221",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.162",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.96",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.36",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.9.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-40960",
      "aliases": [
        "CVE-2024-40960"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "52e1635631b342803aecaf81a362c1464e3da2e5"
                },
                {
                  "fixed": "f0cda984e4e634b221dbf9642b8ecc5b4806b41e"
                },
                {
                  "fixed": "d66fc4826127c82f99c4033380f8e93833d331c7"
                },
                {
                  "fixed": "1ed9849fdf9a1a617129346b11d2094ca26828dc"
                },
                {
                  "fixed": "569c9d9ea6648d099187527b93982f406ddcebc0"
                },
                {
                  "fixed": "51ee2f7c30790799d0ec30c0ce0c743e58f046f2"
                },
                {
                  "fixed": "73e7c8ca6ad76f29b2c99c20845a6f3b203ff0c6"
                },
                {
                  "fixed": "6eed6d3cd19ff3cfa83aeceed86da14abaf7417b"
                },
                {
                  "fixed": "b86762dbe19a62e785c189f313cda5b989931f37"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-40960.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.17"
                },
                {
                  "fixed": "4.19.317"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.20.0"
                },
                {
                  "fixed": "5.4.279"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.221"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.162"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.96"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.36"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.9.7"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-40960.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.976077108Z",
      "provider": "osv",
      "references": [
        "https://cert-portal.siemens.com/productcert/html/ssa-265688.html",
        "https://cert-portal.siemens.com/productcert/html/ssa-355557.html",
        "https://cert-portal.siemens.com/productcert/html/ssa-613116.html",
        "https://git.kernel.org/stable/c/1ed9849fdf9a1a617129346b11d2094ca26828dc",
        "https://git.kernel.org/stable/c/51ee2f7c30790799d0ec30c0ce0c743e58f046f2",
        "https://git.kernel.org/stable/c/569c9d9ea6648d099187527b93982f406ddcebc0",
        "https://git.kernel.org/stable/c/6eed6d3cd19ff3cfa83aeceed86da14abaf7417b",
        "https://git.kernel.org/stable/c/73e7c8ca6ad76f29b2c99c20845a6f3b203ff0c6",
        "https://git.kernel.org/stable/c/b86762dbe19a62e785c189f313cda5b989931f37",
        "https://git.kernel.org/stable/c/d66fc4826127c82f99c4033380f8e93833d331c7",
        "https://git.kernel.org/stable/c/f0cda984e4e634b221dbf9642b8ecc5b4806b41e",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40960.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-40960",
        "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/2024/40xxx/CVE-2024-40960.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-40960",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 495517,
  "published_at": "2024-07-12T12:32:01.939+00:00"
}