CVE-2026-23098
MediumSummary
W jądrze Linuxa zidentyfikowano podatność związana z podwójnym zwolnieniem pamięci w funkcji nr_route_frame(). Problem polega na tym, że wskaźnik nr_neigh->ax25 nie jest sprawdzany przed zwolnieniem starego bufora, co może prowadzić do podwójnego zwolnienia.
Risk Assessment
Podwójne zwolnienie pamięci może prowadzić do nieprzewidywalnych zachowań systemu, w tym do awarii lub potencjalnego zdalnego wykonania kodu, co stanowi poważne zagrożenie dla stabilności i bezpieczeństwa systemu.
Recommendation
Zaleca się aktualizację jądra Linux do najnowszej wersji, w której ta podatność została naprawiona, aby zminimalizować ryzyko związane z podwójnym zwolnieniem pamięci.
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Original NVD description (English source)
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, c
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

