{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-40135", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.170Z", "datePublished": "2025-11-12T10:23:23.051Z", "dateUpdated": "2026-05-11T21:43:25.962Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:43:25.962Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: use RCU in ip6_xmit()\n\nUse RCU in ip6_xmit() in order to use dst_dev_rcu() to prevent\npossible UAF."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv6/ip6_output.c"], "versions": [{"version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36", "lessThan": "f0a54d00d2f36de40266f47c27989853e8588656", "status": "affected", "versionType": "git"}, {"version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36", "lessThan": "f69fec6287565fdeb61f65e700a1184352306943", "status": "affected", "versionType": "git"}, {"version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36", "lessThan": "bd0905e2122e3680968cd0741966983490bf2ed3", "status": "affected", "versionType": "git"}, {"version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36", "lessThan": "f7f9e924f23684b4b23cd9f976cceab24a968e34", "status": "affected", "versionType": "git"}, {"version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36", "lessThan": "9085e56501d93af9f2d7bd16f7fcfacdde47b99c", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv6/ip6_output.c"], "versions": [{"version": "4.13", "status": "affected"}, {"version": "0", "lessThan": "4.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.167", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.130", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.78", "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": "6.1.167"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "6.6.130"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "6.12.78"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "6.17.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "6.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f0a54d00d2f36de40266f47c27989853e8588656"}, {"url": "https://git.kernel.org/stable/c/f69fec6287565fdeb61f65e700a1184352306943"}, {"url": "https://git.kernel.org/stable/c/bd0905e2122e3680968cd0741966983490bf2ed3"}, {"url": "https://git.kernel.org/stable/c/f7f9e924f23684b4b23cd9f976cceab24a968e34"}, {"url": "https://git.kernel.org/stable/c/9085e56501d93af9f2d7bd16f7fcfacdde47b99c"}], "title": "ipv6: use RCU in ip6_xmit()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: use RCU in ip6_xmit()\n\nUse RCU in ip6_xmit() in order to use dst_dev_rcu() to prevent\npossible UAF."}], "id": "CVE-2025-40135", "lastModified": "2026-04-15T00:35:42.020", "metrics": {}, "published": "2025-11-12T11:15:43.220", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9085e56501d93af9f2d7bd16f7fcfacdde47b99c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bd0905e2122e3680968cd0741966983490bf2ed3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f0a54d00d2f36de40266f47c27989853e8588656"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f69fec6287565fdeb61f65e700a1184352306943"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f7f9e924f23684b4b23cd9f976cceab24a968e34"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: ipv6: use RCU in ip6_xmit()", "id": "2414521", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2414521"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nipv6: use RCU in ip6_xmit()\nUse RCU in ip6_xmit() in order to use dst_dev_rcu() to prevent\npossible UAF."], "name": "CVE-2025-40135", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-11-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-40135\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-40135\nhttps://lore.kernel.org/linux-cve-announce/2025111255-CVE-2025-40135-67ca@gregkh/T"], "threat_severity": "Important"}

{"created": "2025-11-12T22:12:30.048731+00:00", "updated": "2025-11-12T22:12:30.048758+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}