{"id":"CVE-2026-63835","summary":"batman-adv: v: prevent OGM aggregation on disabled hardif","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: v: prevent OGM aggregation on disabled hardif\n\nWhen an interface gets disabled, the worker is correctly disabled by\nbatadv_hardif_disable_interface() -\u003e ... -\u003e batadv_v_ogm_iface_disable().\nIn this process, the skb aggr_list is also freed.\n\nBut batadv_v_ogm_send_meshif() can still queue new skbs (via\nbatadv_v_ogm_queue_on_if()) to the aggr_list. This will only stop after all\ncores can no longer find the RCU protected list of hard interfaces. These\nqueued skbs will never be freed or consumed by batadv_v_ogm_aggr_work.\n\nThe batadv_v_ogm_iface_disable() function must block\nbatadv_v_ogm_queue_on_if() to avoid leak of skbs.","modified":"2026-07-21T03:47:33.788362645Z","published":"2026-07-19T12:02:26.574Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63835.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3d4548c96d6f21ac1a9b06c5f82f3ef439c87023"},{"type":"WEB","url":"https://git.kernel.org/stable/c/86ab6b6fb5b82163bf6c45780bb72150021d7349"},{"type":"WEB","url":"https://git.kernel.org/stable/c/97644fdaaf6446ffbe182c5eb804fceb5b1a51b7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d11c00b95b2a3b3934007fc003dccc6fdcc061ad"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d3569327fc7395b2b0461a0a0cb77a0bb74786c0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d462ced79dd430200cf888984e8005da77fc810b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f04dde74399431fb07abbdd9cd5d0ed624771d04"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f79deaaf822ab0ee2424cf28781f9ab91576bea3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63835.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63835"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f89255a02f1d75d8e1b9d1c31435fcb64840cb2a"},{"fixed":"d462ced79dd430200cf888984e8005da77fc810b"},{"fixed":"f79deaaf822ab0ee2424cf28781f9ab91576bea3"},{"fixed":"d3569327fc7395b2b0461a0a0cb77a0bb74786c0"},{"fixed":"97644fdaaf6446ffbe182c5eb804fceb5b1a51b7"},{"fixed":"f04dde74399431fb07abbdd9cd5d0ed624771d04"},{"fixed":"3d4548c96d6f21ac1a9b06c5f82f3ef439c87023"},{"fixed":"86ab6b6fb5b82163bf6c45780bb72150021d7349"},{"fixed":"d11c00b95b2a3b3934007fc003dccc6fdcc061ad"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63835.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.4.0"},{"fixed":"5.10.260"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.211"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.177"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.144"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.95"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.38"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.3"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63835.json"}}],"schema_version":"1.7.5"}