{"api_version":"1","generated_at":"2026-07-24T19:55:36+00:00","cve":"CVE-2026-63835","urls":{"html":"https://cve.report/CVE-2026-63835","api":"https://cve.report/api/cve/CVE-2026-63835.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-63835","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63835"},"summary":{"title":"batman-adv: v: prevent OGM aggregation on disabled hardif","description":"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() -> ... -> 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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 12:16:56","updated_at":"2026-07-19 12:16:56"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/86ab6b6fb5b82163bf6c45780bb72150021d7349","name":"https://git.kernel.org/stable/c/86ab6b6fb5b82163bf6c45780bb72150021d7349","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/97644fdaaf6446ffbe182c5eb804fceb5b1a51b7","name":"https://git.kernel.org/stable/c/97644fdaaf6446ffbe182c5eb804fceb5b1a51b7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d11c00b95b2a3b3934007fc003dccc6fdcc061ad","name":"https://git.kernel.org/stable/c/d11c00b95b2a3b3934007fc003dccc6fdcc061ad","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d462ced79dd430200cf888984e8005da77fc810b","name":"https://git.kernel.org/stable/c/d462ced79dd430200cf888984e8005da77fc810b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f04dde74399431fb07abbdd9cd5d0ed624771d04","name":"https://git.kernel.org/stable/c/f04dde74399431fb07abbdd9cd5d0ed624771d04","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3d4548c96d6f21ac1a9b06c5f82f3ef439c87023","name":"https://git.kernel.org/stable/c/3d4548c96d6f21ac1a9b06c5f82f3ef439c87023","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f79deaaf822ab0ee2424cf28781f9ab91576bea3","name":"https://git.kernel.org/stable/c/f79deaaf822ab0ee2424cf28781f9ab91576bea3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d3569327fc7395b2b0461a0a0cb77a0bb74786c0","name":"https://git.kernel.org/stable/c/d3569327fc7395b2b0461a0a0cb77a0bb74786c0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-63835","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63835","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f89255a02f1d75d8e1b9d1c31435fcb64840cb2a d462ced79dd430200cf888984e8005da77fc810b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f89255a02f1d75d8e1b9d1c31435fcb64840cb2a f79deaaf822ab0ee2424cf28781f9ab91576bea3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f89255a02f1d75d8e1b9d1c31435fcb64840cb2a d3569327fc7395b2b0461a0a0cb77a0bb74786c0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f89255a02f1d75d8e1b9d1c31435fcb64840cb2a 97644fdaaf6446ffbe182c5eb804fceb5b1a51b7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f89255a02f1d75d8e1b9d1c31435fcb64840cb2a f04dde74399431fb07abbdd9cd5d0ed624771d04 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f89255a02f1d75d8e1b9d1c31435fcb64840cb2a 3d4548c96d6f21ac1a9b06c5f82f3ef439c87023 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f89255a02f1d75d8e1b9d1c31435fcb64840cb2a 86ab6b6fb5b82163bf6c45780bb72150021d7349 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f89255a02f1d75d8e1b9d1c31435fcb64840cb2a d11c00b95b2a3b3934007fc003dccc6fdcc061ad git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.4","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.4 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.260 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.211 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.177 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.144 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.95 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.38 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.3 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"63835","cve":"CVE-2026-63835","epss":"0.001650000","percentile":"0.060810000","score_date":"2026-07-20","updated_at":"2026-07-21 00:13:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/batman-adv/bat_v.c","net/batman-adv/bat_v_ogm.c","net/batman-adv/types.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d462ced79dd430200cf888984e8005da77fc810b","status":"affected","version":"f89255a02f1d75d8e1b9d1c31435fcb64840cb2a","versionType":"git"},{"lessThan":"f79deaaf822ab0ee2424cf28781f9ab91576bea3","status":"affected","version":"f89255a02f1d75d8e1b9d1c31435fcb64840cb2a","versionType":"git"},{"lessThan":"d3569327fc7395b2b0461a0a0cb77a0bb74786c0","status":"affected","version":"f89255a02f1d75d8e1b9d1c31435fcb64840cb2a","versionType":"git"},{"lessThan":"97644fdaaf6446ffbe182c5eb804fceb5b1a51b7","status":"affected","version":"f89255a02f1d75d8e1b9d1c31435fcb64840cb2a","versionType":"git"},{"lessThan":"f04dde74399431fb07abbdd9cd5d0ed624771d04","status":"affected","version":"f89255a02f1d75d8e1b9d1c31435fcb64840cb2a","versionType":"git"},{"lessThan":"3d4548c96d6f21ac1a9b06c5f82f3ef439c87023","status":"affected","version":"f89255a02f1d75d8e1b9d1c31435fcb64840cb2a","versionType":"git"},{"lessThan":"86ab6b6fb5b82163bf6c45780bb72150021d7349","status":"affected","version":"f89255a02f1d75d8e1b9d1c31435fcb64840cb2a","versionType":"git"},{"lessThan":"d11c00b95b2a3b3934007fc003dccc6fdcc061ad","status":"affected","version":"f89255a02f1d75d8e1b9d1c31435fcb64840cb2a","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/batman-adv/bat_v.c","net/batman-adv/bat_v_ogm.c","net/batman-adv/types.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.4"},{"lessThan":"5.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.260","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.144","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.95","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.38","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.3","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.260","versionStartIncluding":"5.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.211","versionStartIncluding":"5.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.177","versionStartIncluding":"5.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.144","versionStartIncluding":"5.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.95","versionStartIncluding":"5.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.38","versionStartIncluding":"5.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.3","versionStartIncluding":"5.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"5.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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() -> ... -> 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."}],"providerMetadata":{"dateUpdated":"2026-07-19T12:02:26.574Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/d462ced79dd430200cf888984e8005da77fc810b"},{"url":"https://git.kernel.org/stable/c/f79deaaf822ab0ee2424cf28781f9ab91576bea3"},{"url":"https://git.kernel.org/stable/c/d3569327fc7395b2b0461a0a0cb77a0bb74786c0"},{"url":"https://git.kernel.org/stable/c/97644fdaaf6446ffbe182c5eb804fceb5b1a51b7"},{"url":"https://git.kernel.org/stable/c/f04dde74399431fb07abbdd9cd5d0ed624771d04"},{"url":"https://git.kernel.org/stable/c/3d4548c96d6f21ac1a9b06c5f82f3ef439c87023"},{"url":"https://git.kernel.org/stable/c/86ab6b6fb5b82163bf6c45780bb72150021d7349"},{"url":"https://git.kernel.org/stable/c/d11c00b95b2a3b3934007fc003dccc6fdcc061ad"}],"title":"batman-adv: v: prevent OGM aggregation on disabled hardif","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-63835","datePublished":"2026-07-19T12:02:26.574Z","dateReserved":"2026-07-19T07:54:57.015Z","dateUpdated":"2026-07-19T12:02:26.574Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 12:16:56","lastModifiedDate":"2026-07-19 12:16:56","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"63835","Ordinal":"1","Title":"batman-adv: v: prevent OGM aggregation on disabled hardif","CVE":"CVE-2026-63835","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"63835","Ordinal":"1","NoteData":"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() -> ... -> 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.","Type":"Description","Title":"batman-adv: v: prevent OGM aggregation on disabled hardif"}]}}}