{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-38588", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.026Z", "datePublished": "2025-08-19T17:03:09.856Z", "dateUpdated": "2025-08-19T17:03:09.856Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-08-19T17:03:09.856Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: prevent infinite loop in rt6_nlmsg_size()\n\nWhile testing prior patch, I was able to trigger\nan infinite loop in rt6_nlmsg_size() in the following place:\n\nlist_for_each_entry_rcu(sibling, &f6i->fib6_siblings,\n\t\t\tfib6_siblings) {\n\trt6_nh_nlmsg_size(sibling->fib6_nh, &nexthop_len);\n}\n\nThis is because fib6_del_route() and fib6_add_rt2node()\nuses list_del_rcu(), which can confuse rcu readers,\nbecause they might no longer see the head of the list.\n\nRestart the loop if f6i->fib6_nsiblings is zero."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv6/ip6_fib.c", "net/ipv6/route.c"], "versions": [{"version": "d0ec61c9f3583b76aebdbb271f5c0d3fcccd48b2", "lessThan": "6d345136c9b875f065d226908a29c25cdf9343f8", "status": "affected", "versionType": "git"}, {"version": "52da02521ede55fb86546c3fffd9377b3261b91f", "lessThan": "e1b7932af47f92432be8303d2439d1bf77b0be23", "status": "affected", "versionType": "git"}, {"version": "34a949e7a0869dfa31a40416d2a56973fae1807b", "lessThan": "cd8d8bbd9ced4cc5d06d858f67d4aa87745e8f38", "status": "affected", "versionType": "git"}, {"version": "d9ccb18f83ea2bb654289b6ecf014fd267cc988b", "lessThan": "3c13db3e47e170bab19e574404e7b6be45ea873d", "status": "affected", "versionType": "git"}, {"version": "d9ccb18f83ea2bb654289b6ecf014fd267cc988b", "lessThan": "46aeb66e9e54ed0d56c18615e1c3dbd502b327ab", "status": "affected", "versionType": "git"}, {"version": "d9ccb18f83ea2bb654289b6ecf014fd267cc988b", "lessThan": "54e6fe9dd3b0e7c481c2228782c9494d653546da", "status": "affected", "versionType": "git"}, {"version": "11edcd026012ac18acee0f1514db3ed1b160fc6f", "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_fib.c", "net/ipv6/route.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.148", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.102", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.42", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.10", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16.1", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17-rc1", "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": "6.1.128", "versionEndExcluding": "6.1.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.75", "versionEndExcluding": "6.6.102"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.2", "versionEndExcluding": "6.12.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.15.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.16.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.17-rc1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6d345136c9b875f065d226908a29c25cdf9343f8"}, {"url": "https://git.kernel.org/stable/c/e1b7932af47f92432be8303d2439d1bf77b0be23"}, {"url": "https://git.kernel.org/stable/c/cd8d8bbd9ced4cc5d06d858f67d4aa87745e8f38"}, {"url": "https://git.kernel.org/stable/c/3c13db3e47e170bab19e574404e7b6be45ea873d"}, {"url": "https://git.kernel.org/stable/c/46aeb66e9e54ed0d56c18615e1c3dbd502b327ab"}, {"url": "https://git.kernel.org/stable/c/54e6fe9dd3b0e7c481c2228782c9494d653546da"}], "title": "ipv6: prevent infinite loop in rt6_nlmsg_size()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: prevent infinite loop in rt6_nlmsg_size()\n\nWhile testing prior patch, I was able to trigger\nan infinite loop in rt6_nlmsg_size() in the following place:\n\nlist_for_each_entry_rcu(sibling, &f6i->fib6_siblings,\n\t\t\tfib6_siblings) {\n\trt6_nh_nlmsg_size(sibling->fib6_nh, &nexthop_len);\n}\n\nThis is because fib6_del_route() and fib6_add_rt2node()\nuses list_del_rcu(), which can confuse rcu readers,\nbecause they might no longer see the head of the list.\n\nRestart the loop if f6i->fib6_nsiblings is zero."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipv6: evitar bucle infinito en rt6_nlmsg_size(). Durante las pruebas del parche anterior, logr\u00e9 activar un bucle infinito en rt6_nlmsg_size() en el siguiente lugar: list_for_each_entry_rcu(sibling, &f6i->fib6_siblings, fib6_siblings) { rt6_nh_nlmsg_size(sibling->fib6_nh, &nexthop_len); }. Esto se debe a que fib6_del_route() y fib6_add_rt2node() usan list_del_rcu(), lo que puede confundir a los lectores de rcu, ya que podr\u00edan dejar de ver el encabezado de la lista. Reinicie el bucle si f6i->fib6_nsiblings es cero."}], "id": "CVE-2025-38588", "lastModified": "2025-08-20T14:40:17.713", "metrics": {}, "published": "2025-08-19T17:15:36.383", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3c13db3e47e170bab19e574404e7b6be45ea873d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/46aeb66e9e54ed0d56c18615e1c3dbd502b327ab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/54e6fe9dd3b0e7c481c2228782c9494d653546da"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6d345136c9b875f065d226908a29c25cdf9343f8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cd8d8bbd9ced4cc5d06d858f67d4aa87745e8f38"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e1b7932af47f92432be8303d2439d1bf77b0be23"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: ipv6: prevent infinite loop in rt6_nlmsg_size()", "id": "2389512", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2389512"}, "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": ["No description is available for this CVE."], "name": "CVE-2025-38588", "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": "Out of support scope", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not 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": "2025-08-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38588\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38588\nhttps://lore.kernel.org/linux-cve-announce/2025081916-CVE-2025-38588-cb2d@gregkh/T"], "threat_severity": "Moderate"}