The vulnerability of the tracepoint_add_func() function in the kernel/tracepoint.c module of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the tracepointaddfunc function in the kernel/tracepoint.c module of the Linux operating system is related to incomplete cleanup of temporary or auxiliary resources. Exploiting this vulnerability can allow an attacker to cause a service failure...

CVE-2026-46196

CVE-2026-46196 describes a Linux kernel tracepoint regression: during a 0→1 transition, tracepoint_add_func() calls ext->regfunc() before installing a probe, and if func_add() fails (e.g., -ENOMEM), it previously did not call ext->unregfunc(), leaving behind side effects. The fix mirrors th...

CVE-2026-46196: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: tracepoint: balance regfunc on funcadd failure in tracepointaddfunc When a tracepoint goes through the 0 - 1 transition, tracepointaddfunc invokes the subsystem's ext-regfunc before attempting to install the new probe via funcadd...

CVE-2025-71125: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: tracing: Do not register unsupported perf events Synthetic events currently do not have a function to register perf events. This leads to calling the tracepoint register functions with a NULL function pointer which triggers:...

CVE-2025-39914: Double Free

In the Linux kernel, the following vulnerability has been resolved: tracing: Silence warning when chunk allocation fails in tracepidwrite Syzkaller trigger a fault injection warning: WARNING: CPU: 1 PID: 12326 at tracepointaddfunc+0xbfc/0xeb0 Modules linked in: CPU: 1 UID: 0 PID: 12326 Comm:...