{"id":"CVE-2026-98089","revision":"ea751b61b97c4c3bbb66e4c696f0ba06","records":[{"revision":"ea751b61b97c4c3bbb66e4c696f0ba06","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98089","aliases":[],"title":"bonding: alb: fix uninitialized transport header access in alb_determine_nd()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: alb: fix uninitialized transport header access in alb_determine_nd()\n\nalb_determine_nd() uses icmp6_hdr(skb) to inspect ICMPv6 headers.\nHowever, in xmit paths (e.g. packets sent via AF_PACKET / raw sockets\nor forwarded packets), skb->transport_header is not guaranteed to be\ninitialized. While pskb_network_may_pull() ensures the packet data is\nlinear starting from the network header, it does not set or adjust the\ntransport header offset.\n\nDereferencing icmp6_hdr(skb) can therefore access out-of-bounds memory.\n\nFetch the icmp6hdr directly after ipv6hdr following pskb_network_may_pull(),\nand reload ipv6hdr in case pskb_may_pull() reallocated skb->head.\nAlso remove the unused bond argument from alb_determine_nd().","state":0,"publishedAt":"2026-09-25T10:24:22.877+00:00","modifiedAt":"2026-10-19T09:13:41.394+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/bonding/bond_alb.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549\",\n                            \"lessThan\": \"862c8eb6947689c44fe11353755576a3672563a5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549\",\n                            \"lessThan\": \"7adb1bf25b0c5cedfb49b6e82844394d4f3c0d99\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549\",\n                            \"lessThan\": \"e39cf90bd856443542b97933289749fca07476bf\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549\",\n                            \"lessThan\": \"27314f96d29b54e815e7a9b84c3273f1895e68e2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549\",\n                            \"lessThan\": \"3b178894931a268c09126a5b53630f343e10e296\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549\",\n                            \"lessThan\": \"70f3995830d3f1e79faa14eb0605914f778feca9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/bonding/bond_alb.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.111\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/862c8eb6947689c44fe11353755576a3672563a5","https://git.kernel.org/stable/c/7adb1bf25b0c5cedfb49b6e82844394d4f3c0d99","https://git.kernel.org/stable/c/e39cf90bd856443542b97933289749fca07476bf","https://git.kernel.org/stable/c/27314f96d29b54e815e7a9b84c3273f1895e68e2","https://git.kernel.org/stable/c/3b178894931a268c09126a5b53630f343e10e296","https://git.kernel.org/stable/c/70f3995830d3f1e79faa14eb0605914f778feca9"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98089","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98089","identifiers":["CVE-2026-98089"]},"retained":false,"historicalAffected":[]}],"coverage":[]}