CVE-2026-98861 fprobe: Use guard(rcu_sched_notrace) and check rcu_is_watching()

In the Linux kernel, the following vulnerability has been resolved: fprobe: Use guardrcuschednotrace and check rcuiswatching unregisterfprobe and unregisterfprobeasync used by BPF kprobe-multi rely on standard RCU grace periods synchronizercu and callrcu to wait until in-flight fprobe handlers...

CVE-2026-98861

The Linux kernel contains a vulnerability in the fprobe mechanism used by BPF kprobe-multi . The issue arises because unregister_fprobe() and unregister_fprobe_async() rely on standard RCU grace periods (synchronize_rcu() and call_rcu()) to wait for in-flight handlers. If a handler executes while...

ROS-20260828-73-0011

The vulnerability of the unregisterfprobe function in the kernel/trace/fprobe.c module, which supports kernel tracing in Linux operating systems, is related to synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to cause a service failure...

Linux kernel trace unregister_fprobe Heap Buffer Overflow DoS

The vulnerability of the unregisterfprobe function in the kernel/trace/fprobe.c module, which supports kernel tracing in Linux operating systems, is related to synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to cause a service failure...