CVE-2026-43321: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: bpf: Properly mark live registers for indirect jumps For a `gotox rX` instruction the rX register should be marked as used in the compute_insn_live_regs() function. Fix this.

Affected products

• Linux Linux Kernel: from 6.19, before 6.19.6 (fixed in 6.19.6); version 7.0 only

Published 2026-05-08. Last modified 2026-06-17.