CVE-2026-43409

In the Linux kernel, the following vulnerability has been resolved: kprobes: avoid crash when rmmod/insmod after ftrace killed After we hit ftrace is killed by some errors, the kernel crash if we remove modules in which kprobe probes. BUG: unable to handle page fault for address: fffffbfff805000d...

CVE-2026-43409

CVE-2026-43409 affects the Linux kernel kprobes subsystem: when ftrace is disabled due to errors, removing a module that uses kprobes can crash the system because kprobes_ftrace_disabled is not correctly handled. Root cause: kprobe_ftrace_disabled flag mishandling in __disarm_kprobe_ftrace(). Mit...