{"id":"CVE-2026-98089","title":"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 …","summary":"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 …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 < e39cf90bd856443542b97933289749fca07476bf","Linux >= 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 < 27314f96d29b54e815e7a9b84c3273f1895e68e2","Linux >= 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 < 3b178894931a268c09126a5b53630f343e10e296","Linux >= 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 < 70f3995830d3f1e79faa14eb0605914f778feca9","Linux 5.18"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T11:17:38.590","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98089","references":[{"url":"https://git.kernel.org/stable/c/27314f96d29b54e815e7a9b84c3273f1895e68e2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3b178894931a268c09126a5b53630f343e10e296","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/70f3995830d3f1e79faa14eb0605914f778feca9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e39cf90bd856443542b97933289749fca07476bf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-25T11:06:38.832Z","slug":"CVE-2026-98089","body":"## Overview\n\nIn 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().\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}