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Vulnerability Details CVE-2026-23098

In the Linux kernel, the following vulnerability has been resolved: netrom: fix double-free in nr_route_frame() In nr_route_frame(), old_skb is immediately freed without checking if nr_neigh->ax25 pointer is NULL. Therefore, if nr_neigh->ax25 is NULL, the caller function will free old_skb again, causing a double-free bug. Therefore, to prevent this, we need to modify it to check whether nr_neigh->ax25 is NULL before freeing old_skb.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 9.9%
CVSS Severity
CVSS v3 Score 7.8
Products affected by CVE-2026-23098


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