DEBIAN-CVE-2025-39689

In the Linux kernel, the following vulnerability has been resolved: ftrace: Also allocate and copy hash for reading of filter files Currently the reader of setftracefilter and setftracenotrace just adds the pointer to the global tracer hash to its iterator. Unlike the writer that allocates a copy...

CVE-2025-39689

CVE-2025-39689 affects the Linux kernel’s ftrace filter handling. The issue arose because readers (set_ftrace_filter/set_ftrace_notrace) kept a pointer to the global tracer hash, unlike writers who copy the hash. The pointer could remain static across calls that release locks and update the globa...