{"api_version":"1","generated_at":"2026-07-20T18:16:04+00:00","cve":"CVE-2026-64094","urls":{"html":"https://cve.report/CVE-2026-64094","api":"https://cve.report/api/cve/CVE-2026-64094.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64094","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64094"},"summary":{"title":"batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: avoid NULL-ptr deref for claim via dropped interface\n\nWithout rtnl_lock held, a hardif might be retrieved as primary interface of\na meshif, but then (while operating on this interface) getting decoupled\nfrom the mesh interface. In this case, the meshif still exists but the\npointer from the primary hardif to the meshif is set to NULL.\n\nThe mesh_iface must be checked first to be non-NULL before continuing to\nsend an ARP request using meshif.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:17:50","updated_at":"2026-07-19 16:17:50"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/2a8c9e86529156c62d9187b9ed9454c31665ad33","name":"https://git.kernel.org/stable/c/2a8c9e86529156c62d9187b9ed9454c31665ad33","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/555b8d3f5c313d81d46274fd0976352dafc80124","name":"https://git.kernel.org/stable/c/555b8d3f5c313d81d46274fd0976352dafc80124","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/efb62458c94db1fe3a287e7e89c31b0cfb03f938","name":"https://git.kernel.org/stable/c/efb62458c94db1fe3a287e7e89c31b0cfb03f938","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6921a7683ae9ad0208d829e71f725a9e25ccff49","name":"https://git.kernel.org/stable/c/6921a7683ae9ad0208d829e71f725a9e25ccff49","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/53cb3511f6eda37d3bd923545fdba6013b6d7bb7","name":"https://git.kernel.org/stable/c/53cb3511f6eda37d3bd923545fdba6013b6d7bb7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70","name":"https://git.kernel.org/stable/c/4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24","name":"https://git.kernel.org/stable/c/f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45","name":"https://git.kernel.org/stable/c/0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64094","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64094","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 23721387c409087fd3b97e274f34d3ddc0970b74 4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 23721387c409087fd3b97e274f34d3ddc0970b74 53cb3511f6eda37d3bd923545fdba6013b6d7bb7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 23721387c409087fd3b97e274f34d3ddc0970b74 efb62458c94db1fe3a287e7e89c31b0cfb03f938 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 23721387c409087fd3b97e274f34d3ddc0970b74 2a8c9e86529156c62d9187b9ed9454c31665ad33 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.210 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.176 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.143 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.93 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.34 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.11 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * 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the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: avoid NULL-ptr deref for claim via dropped interface\n\nWithout rtnl_lock held, a hardif might be retrieved as primary interface of\na meshif, but then (while operating on this interface) getting decoupled\nfrom the mesh interface. In this case, the meshif still exists but the\npointer from the primary hardif to the meshif is set to NULL.\n\nThe mesh_iface must be checked first to be non-NULL before continuing to\nsend an ARP request using meshif."}],"providerMetadata":{"dateUpdated":"2026-07-19T15:40:01.772Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70"},{"url":"https://git.kernel.org/stable/c/53cb3511f6eda37d3bd923545fdba6013b6d7bb7"},{"url":"https://git.kernel.org/stable/c/efb62458c94db1fe3a287e7e89c31b0cfb03f938"},{"url":"https://git.kernel.org/stable/c/2a8c9e86529156c62d9187b9ed9454c31665ad33"},{"url":"https://git.kernel.org/stable/c/0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45"},{"url":"https://git.kernel.org/stable/c/6921a7683ae9ad0208d829e71f725a9e25ccff49"},{"url":"https://git.kernel.org/stable/c/555b8d3f5c313d81d46274fd0976352dafc80124"},{"url":"https://git.kernel.org/stable/c/f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24"}],"title":"batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64094","datePublished":"2026-07-19T15:40:01.772Z","dateReserved":"2026-07-19T07:54:57.032Z","dateUpdated":"2026-07-19T15:40:01.772Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:17:50","lastModifiedDate":"2026-07-19 16:17:50","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64094","Ordinal":"1","Title":"batman-adv: bla: avoid NULL-ptr deref for claim via dropped inte","CVE":"CVE-2026-64094","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64094","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: avoid NULL-ptr deref for claim via dropped interface\n\nWithout rtnl_lock held, a hardif might be retrieved as primary interface of\na meshif, but then (while operating on this interface) getting decoupled\nfrom the mesh interface. In this case, the meshif still exists but the\npointer from the primary hardif to the meshif is set to NULL.\n\nThe mesh_iface must be checked first to be non-NULL before continuing to\nsend an ARP request using meshif.","Type":"Description","Title":"batman-adv: bla: avoid NULL-ptr deref for claim via dropped inte"}]}}}