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tunnels: do not assume transport header in iptunnel_pmtud_check_icmp()

cve-program · CVE-2026-63992

Published

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ipv4/ip_tunnel_core.c"
                    ],
                    "versions": [
                        {
                            "version": "4cb47a8644cc9eb8ec81190a50e79e6530d0297f",
                            "lessThan": "5a92cb45e34749865d03daf8d3500f77b5f6644c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4cb47a8644cc9eb8ec81190a50e79e6530d0297f",
                            "lessThan": "c7b7ec3e69e673c0d6b57f74d21da50c485c598e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4cb47a8644cc9eb8ec81190a50e79e6530d0297f",
                            "lessThan": "7f4f7efe7f30edd29c4988de01728bf2398217e4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4cb47a8644cc9eb8ec81190a50e79e6530d0297f",
                            "lessThan": "e917d0c69f01af2bb4fbea2b66d560a53b3ac7ec",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4cb47a8644cc9eb8ec81190a50e79e6530d0297f",
                            "lessThan": "a096b6e34f602950af9a2b0856cd93a5f4c276d7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4cb47a8644cc9eb8ec81190a50e79e6530d0297f",
                            "lessThan": "43368636c663cff6e59dde93cf4b8e43ac28eb93",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4cb47a8644cc9eb8ec81190a50e79e6530d0297f",
                            "lessThan": "cb549df9ce4ee15c9d5b19ddab12cf2128e4313c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4cb47a8644cc9eb8ec81190a50e79e6530d0297f",
                            "lessThan": "509323077ef79a26ba0c60bb556e45c12c398b2d",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ipv4/ip_tunnel_core.c"
                    ],
                    "versions": [
                        {
                            "version": "5.9",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.9",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.259",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.210",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.176",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.143",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.93",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.35",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.12",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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Sources read 8 Nov 18:59 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current