{"api_version":"1","generated_at":"2026-09-26T09:51:27+00:00","cve":"CVE-2026-98089","urls":{"html":"https://cve.report/CVE-2026-98089","api":"https://cve.report/api/cve/CVE-2026-98089.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98089","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98089"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-09-25 11:17:38","updated_at":"2026-09-25 11:17:38"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/e39cf90bd856443542b97933289749fca07476bf","name":"https://git.kernel.org/stable/c/e39cf90bd856443542b97933289749fca07476bf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/27314f96d29b54e815e7a9b84c3273f1895e68e2","name":"https://git.kernel.org/stable/c/27314f96d29b54e815e7a9b84c3273f1895e68e2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/70f3995830d3f1e79faa14eb0605914f778feca9","name":"https://git.kernel.org/stable/c/70f3995830d3f1e79faa14eb0605914f778feca9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3b178894931a268c09126a5b53630f343e10e296","name":"https://git.kernel.org/stable/c/3b178894931a268c09126a5b53630f343e10e296","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98089","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98089","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 e39cf90bd856443542b97933289749fca07476bf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 27314f96d29b54e815e7a9b84c3273f1895e68e2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 3b178894931a268c09126a5b53630f343e10e296 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 70f3995830d3f1e79faa14eb0605914f778feca9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.18","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.18 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.111 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.53 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.7 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/bonding/bond_alb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e39cf90bd856443542b97933289749fca07476bf","status":"affected","version":"0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549","versionType":"git"},{"lessThan":"27314f96d29b54e815e7a9b84c3273f1895e68e2","status":"affected","version":"0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549","versionType":"git"},{"lessThan":"3b178894931a268c09126a5b53630f343e10e296","status":"affected","version":"0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549","versionType":"git"},{"lessThan":"70f3995830d3f1e79faa14eb0605914f778feca9","status":"affected","version":"0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/bonding/bond_alb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.18"},{"lessThan":"5.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.111","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.53","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.111","versionStartIncluding":"5.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.53","versionStartIncluding":"5.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.7","versionStartIncluding":"5.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc2","versionStartIncluding":"5.18","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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()."}],"providerMetadata":{"dateUpdated":"2026-09-25T10:24:22.877Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/e39cf90bd856443542b97933289749fca07476bf"},{"url":"https://git.kernel.org/stable/c/27314f96d29b54e815e7a9b84c3273f1895e68e2"},{"url":"https://git.kernel.org/stable/c/3b178894931a268c09126a5b53630f343e10e296"},{"url":"https://git.kernel.org/stable/c/70f3995830d3f1e79faa14eb0605914f778feca9"}],"title":"bonding: alb: fix uninitialized transport header access in alb_determine_nd()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98089","datePublished":"2026-09-25T10:24:22.877Z","dateReserved":"2026-09-25T10:19:56.075Z","dateUpdated":"2026-09-25T10:24:22.877Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-25 11:17:38","lastModifiedDate":"2026-09-25 11:17:38","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98089","Ordinal":"1","Title":"bonding: alb: fix uninitialized transport header access in alb_d","CVE":"CVE-2026-98089","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98089","Ordinal":"1","NoteData":"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().","Type":"Description","Title":"bonding: alb: fix uninitialized transport header access in alb_d"}]}}}