{"api_version":"1","generated_at":"2026-07-23T14:33:39+00:00","cve":"CVE-2026-23098","urls":{"html":"https://cve.report/CVE-2026-23098","api":"https://cve.report/api/cve/CVE-2026-23098.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23098","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23098"},"summary":{"title":"netrom: fix double-free in nr_route_frame()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetrom: fix double-free in nr_route_frame()\n\nIn nr_route_frame(), old_skb is immediately freed without checking if\nnr_neigh->ax25 pointer is NULL. Therefore, if nr_neigh->ax25 is NULL,\nthe caller function will free old_skb again, causing a double-free bug.\n\nTherefore, to prevent this, we need to modify it to check whether\nnr_neigh->ax25 is NULL before freeing old_skb.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-02-04 17:16:20","updated_at":"2026-04-03 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Therefore, if nr_neigh->ax25 is NULL,\nthe caller function will free old_skb again, causing a double-free bug.\n\nTherefore, to prevent this, we need to modify it to check whether\nnr_neigh->ax25 is NULL before freeing 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fix double-free in nr_route_frame()","CVE":"CVE-2026-23098","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23098","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetrom: fix double-free in nr_route_frame()\n\nIn nr_route_frame(), old_skb is immediately freed without checking if\nnr_neigh->ax25 pointer is NULL. Therefore, if nr_neigh->ax25 is NULL,\nthe caller function will free old_skb again, causing a double-free bug.\n\nTherefore, to prevent this, we need to modify it to check whether\nnr_neigh->ax25 is NULL before freeing old_skb.","Type":"Description","Title":"netrom: fix double-free in nr_route_frame()"}]}}}