{"cve":"CVE-2026-23098","nvd":{"published":"2026-02-04T17:16:20.680","modified":"2026-06-17T10:20:53.157","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-415"],"references":["https://git.kernel.org/stable/c/25aab6bfc31017a7e52035b99aef5c2b6bde8ffb","https://git.kernel.org/stable/c/6e0110ea90313b7c0558a0b77038274a6821caf8","https://git.kernel.org/stable/c/7c48fdf2d1349bb54815b56fb012b9d577707708","https://git.kernel.org/stable/c/94d1a8bd08af1f4cc345c5c29f5db1ea72b8bb8c","https://git.kernel.org/stable/c/9f5fa78d9980fe75a69835521627ab7943cb3d67"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:22:27.261130201+00:00"},"epss":{"cve":"CVE-2026-23098","score":0.00202,"percentile":0.10229,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}