Mittel 5.5Linux-Server
CVE-2026-63981
Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff
F5 F5OS, Dell NetWorker, Debian Linux, Amazon Linux 2, Red Hat Enterprise Linux, IBM QRadar SIEM, Dell Avamar, RESF…
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: Fix blockcast recursion bypass leading to stack overflow tcf_mirred_act() checks sched_mirred_nest against MIRRED_NEST_LIMIT (4) to prevent deep recursion. However, when the action uses blockcast (tcfm_blockid != 0), the function returns at the tcf_blockcast() call BEFORE reaching the counter increment. As a result, the recursion counter never advances and the limit check is entirely…
19. Jul 2026
Original bei CERT-Bund öffnen