{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98317",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.339Z",
        "datePublished": "2026-10-06T08:46:12.351Z",
        "dateUpdated": "2026-10-19T09:17:27.952Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:17:27.952Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nneighbour: Enforce min/max to NDTPA_INTERVAL_PROBE_TIME_MS.\n\nNDTPA_INTERVAL_PROBE_TIME_MS sets .type and .min but misses\n.validation_type, so no validation is applied:\n\n  # ynl --family rt-neigh --do setneightbl \\\n  --json '{\"name\": \"arp_cache\", \"parms\": {\"interval-probe-time-ms\": 0}}'\n\n  # ynl --family rt-neigh --dump getneightbl --output-json | \\\n  jq '.[] | select(.name == \"arp_cache\" and has(\"config\"))\n          | .parms[\"interval-probe-time-ms\"]'\n  0\n\nMoreover, nla_get_msecs() uses msecs_to_jiffies(), and u64 is\nsilently cast to u32, so a larger value can bypass the min check:\n\n  e.g. 4294967296 == 0x100000000\n\n  # ynl --family rt-neigh --do setneightbl \\\n  --json '{\"name\": \"arp_cache\", \"parms\": {\"interval-probe-time-ms\": 4294967296}}'\n\n  # ynl --family rt-neigh --dump getneightbl --output-json | \\\n  jq '.[] | select(.name == \"arp_cache\" and has(\"config\"))\n          | .parms[\"interval-probe-time-ms\"]'\n  0\n\nmsecs_to_jiffies() returns MAX_JIFFY_OFFSET if the value is\nlarger than INT_MAX.  Also, INT_MAX ms overflows int NEIGH_VAR()\nwhen HZ > 1000 (Alpha, MIPS), and passing a negative integer to\nqueue_delayed_work(unsigned long delay) causes sign extension,\nwhich wraps around the expiry time to the past, resulting in it\nbeing handled as 0 delay in the timer wheel.\n\nLet's use NLA_POLICY_FULL_RANGE() and limit the max to 1 day.\n\nThe same max check is applied to sysctl as well.\n\nNote that this controls the probe interval for NTF_MANAGED\nentries, so the max of 1 day is unlikely to break any\ndeployments."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "Documentation/netlink/specs/rt-neigh.yaml",
                        "Documentation/networking/ip-sysctl.rst",
                        "net/core/neighbour.c"
                    ],
                    "versions": [
                        {
                            "version": "211da42eaa45db7b0edfde187dd88a85fbd466b5",
                            "lessThan": "982c7f66c04134b77126edbfd8a63ecd6928cfd9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "211da42eaa45db7b0edfde187dd88a85fbd466b5",
                            "lessThan": "8550b50e49b01b572e653e572f24ddd73949aa74",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "211da42eaa45db7b0edfde187dd88a85fbd466b5",
                            "lessThan": "6d79b223ec44ada58ad37db42f539b60985a7722",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "Documentation/netlink/specs/rt-neigh.yaml",
                        "Documentation/networking/ip-sysctl.rst",
                        "net/core/neighbour.c"
                    ],
                    "versions": [
                        {
                            "version": "6.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.54",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.8",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.18.54"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "7.2.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/982c7f66c04134b77126edbfd8a63ecd6928cfd9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8550b50e49b01b572e653e572f24ddd73949aa74"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6d79b223ec44ada58ad37db42f539b60985a7722"
                }
            ],
            "title": "neighbour: Enforce min/max to NDTPA_INTERVAL_PROBE_TIME_MS.",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}