Mittel 5.5Linux-Server
CVE-2026-63836
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: batman-adv: tp_meter: avoid divide-by-zero for dec_cwnd The cwnd is always MSS <= cwnd <= 0x20000000. But the calculation in batadv_tp_update_cwnd() assumes unsigned 32 bit arithmetics. ((mss * 8) ** 2) / (cwnd * 8) In case cwnd is actually 0x20000000, it will be shifted by 3 bit to the left end up at 0x100000000 or U32_MAX + 1. It will therefore wrap around and be 0 - resulting in: ((mss * 8) ** 2) / 0 This…
19. Jul 2026
Original bei Ubuntu öffnen