ftrace

  1. CVE-2026-23217: RISC-V Linux Kernel Ftrace Deadlock Fixed by Build Time Exclusion

    A newly assigned Linux kernel vulnerability, CVE-2026-23217, exposes a subtle but serious deadlock risk on RISC‑V systems when the kernel’s function tracer (ftrace) is configured to snapshot SBI ecall functions — a situation that can hang the entire system. The fix merged into the kernel trees...

  2. Linux Kernel ftrace Fix: cond_resched Prevents Softlockups in ftrace_graph_set_hash

    The Linux kernel’s ftrace subsystem received a targeted fix for a responsiveness issue that could turn into a local denial‑of‑service: a missing conditional reschedule inside ftrace_graph_set_hash() allowed long loops to hog the CPU and trigger the kernel’s softlockup watchdog under heavy...

  3. CVE-2022-50266: Linux kprobes cleanup ordering fix to prevent DoS

    A subtle ordering bug in the Linux kernel's kprobes cleanup code quietly turned into a denial-of-service risk: CVE-2022-50266 patches a logic error in kill_kprobe so that ftrace-backed probes are properly disarmed before a probe is marked gone, preventing ftrace from referencing invalid probe...