RingBufferDetonator

Ring Buffer Detonator This is a proof-of-concept program for triggering to prove a logic bug in rbpercpuempty. Programs hit the bug will be hung up in kernel-space busy deadloop in tracingreadpipe and impossible to suspend or terminate using any UNIX signal including SIGKILL. Despite exhibiting...

kernel: DoS in rb_per_cpu_empty()

A lack of CPU resources in the Linux kernel tracing module functionality was found in the way users use the trace ring buffer in specific way. Only privileged local users with CAPSYSADMIN capability could use this flaw to starve the resources causing denial of service...