{"id":"CVE-2026-98089","summary":"bonding: alb: fix uninitialized transport header access in alb_determine_nd()","details":"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-\u003etransport_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-\u003ehead.\nAlso remove the unused bond argument from alb_determine_nd().","modified":"2026-09-26T03:48:37.147793785Z","published":"2026-09-25T10:24:22.877Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98089.json","cna_assigner":"Linux"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/27314f96d29b54e815e7a9b84c3273f1895e68e2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3b178894931a268c09126a5b53630f343e10e296"},{"type":"WEB","url":"https://git.kernel.org/stable/c/70f3995830d3f1e79faa14eb0605914f778feca9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e39cf90bd856443542b97933289749fca07476bf"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98089.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98089"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549"},{"fixed":"e39cf90bd856443542b97933289749fca07476bf"},{"fixed":"27314f96d29b54e815e7a9b84c3273f1895e68e2"},{"fixed":"3b178894931a268c09126a5b53630f343e10e296"},{"fixed":"70f3995830d3f1e79faa14eb0605914f778feca9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98089.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.18.0"},{"fixed":"6.12.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.53"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98089.json"}}],"schema_version":"1.9.0"}