{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-40170",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.176Z",
        "datePublished": "2025-11-12T10:46:52.014Z",
        "dateUpdated": "2026-06-16T19:33:20.303Z"
    },
    "containers": {
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                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:44:07.195Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: use dst_dev_rcu() in sk_setup_caps()\n\nUse RCU to protect accesses to dst->dev from sk_setup_caps()\nand sk_dst_gso_max_size().\n\nAlso use dst_dev_rcu() in ip6_dst_mtu_maybe_forward(),\nand ip_dst_mtu_maybe_forward().\n\nip4_dst_hoplimit() can use dst_dev_net_rcu()."
                }
            ],
            "affected": [
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                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/net/ip.h",
                        "include/net/ip6_route.h",
                        "include/net/route.h",
                        "net/core/sock.c"
                    ],
                    "versions": [
                        {
                            "version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36",
                            "lessThan": "5d1be493d1110c9e720b4c51a6e587bb2fb4ac12",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36",
                            "lessThan": "a805729c0091073d8f0415cfa96c7acd1bc17a48",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36",
                            "lessThan": "99a2ace61b211b0be861b07fbaa062fca4b58879",
                            "status": "affected",
                            "versionType": "git"
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                },
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                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/net/ip.h",
                        "include/net/ip6_route.h",
                        "include/net/route.h",
                        "net/core/sock.c"
                    ],
                    "versions": [
                        {
                            "version": "4.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.64",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.3",
                            "lessThanOrEqual": "6.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18",
                            "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": "4.13",
                                    "versionEndExcluding": "6.12.64"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.13",
                                    "versionEndExcluding": "6.17.3"
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                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.13",
                                    "versionEndExcluding": "6.18"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/5d1be493d1110c9e720b4c51a6e587bb2fb4ac12"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a805729c0091073d8f0415cfa96c7acd1bc17a48"
                },
                {
                    "url": "https://git.kernel.org/stable/c/99a2ace61b211b0be861b07fbaa062fca4b58879"
                }
            ],
            "title": "net: use dst_dev_rcu() in sk_setup_caps()",
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                                "timestamp": "2026-06-16T19:33:10.426175Z",
                                "id": "CVE-2025-40170",
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                                        "Exploitation": "none"
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