CVE-2026-98789

The Linux kernel contains a vulnerability in the BPF subsystem where objects can become stuck in free_by_rcu_ttrace . This occurs because do_call_rcu_ttrace() returns early when call_rcu_ttrace_in_progress is set, leaving objects in the trace buffer. Since the number of such objects is not bounde...

CVE-2026-98789 bpf: Fix objects stuck in free_by_rcu_ttrace

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix objects stuck in freebyrcuttrace docallrcuttrace returns early when callrcuttraceinprogress is set and leaves the objects in freebyrcuttrace. freercu frees waitingforgpttrace only and clears the flag. Hence the objects...