{"schema_version":"1.9.0","id":"CVE-2026-63922","published":"2026-07-19T14:55:24.268Z","modified":"2026-08-31T18:26:03.543725681Z","related":["SUSE-SU-2026:23193-1","SUSE-SU-2026:23194-1","SUSE-SU-2026:23241-1","SUSE-SU-2026:23244-1","SUSE-SU-2026:3593-1","SUSE-SU-2026:3594-1","SUSE-SU-2026:3595-1","SUSE-SU-2026:3602-1","SUSE-SU-2026:3616-1","SUSE-SU-2026:3617-1","SUSE-SU-2026:3790-1","SUSE-SU-2026:3809-1","SUSE-SU-2026:3810-1"],"summary":"ipv6: exthdrs: refresh nh after handling HAO option","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: exthdrs: refresh nh after handling HAO option\n\nip6_parse_tlv() caches skb_network_header(skb) in nh while walking\nIPv6 TLVs.\n\nipv6_dest_hao() may call pskb_expand_head() for a cloned skb, which can\nmove the skb head and invalidate the cached network header pointer.\nRefresh nh after ipv6_dest_hao() returns so any trailing padding or TLVs\nare parsed from the current skb head.\n\nThis matches the existing pattern used in ip6_parse_tlv() after helpers\nthat can modify skb header storage.","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a831f5bbc89a9978795504be9e1ff412043f8f77"},{"fixed":"b3ac54e5c905f86d22b502eacb5686a282c5659f"},{"fixed":"f8aabed3ff3e986920cf02a2a2785e08e586b234"},{"fixed":"1a11eb7431e3d2882f5bd5939c5a9bbc65ccf4d1"},{"fixed":"12d957979e4a800167842f1b42be6a606d227ebe"},{"fixed":"ff375ed1cba81392346c5bfbf0bb7a13b2946f99"},{"fixed":"751db1b802a067b7fff25880f4e9f9152a171538"},{"fixed":"9b6dcc0a39fd71752937f0b6b3973e1416085dcf"},{"fixed":"f7b52afe3592eae66e160586b45a3f2242972c63"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63922.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.19"},{"fixed":"5.10.259"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.210"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.176"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.143"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.93"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.35"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.12"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63922.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/12d957979e4a800167842f1b42be6a606d227ebe"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1a11eb7431e3d2882f5bd5939c5a9bbc65ccf4d1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/751db1b802a067b7fff25880f4e9f9152a171538"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9b6dcc0a39fd71752937f0b6b3973e1416085dcf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b3ac54e5c905f86d22b502eacb5686a282c5659f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f7b52afe3592eae66e160586b45a3f2242972c63"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f8aabed3ff3e986920cf02a2a2785e08e586b234"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ff375ed1cba81392346c5bfbf0bb7a13b2946f99"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63922.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63922"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63922.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}