On Thu, 25 May 2017 10:57:51 +0200 (CEST) Thomas Gleixner <t...@linutronix.de> wrote:
> ftrace use module_alloc() to allocate trampoline pages. The mapping of > module_alloc() is RWX, which makes sense as the memory is written to > right after allocation. But nothing makes these pages RO after > writing to them. > > Add proper set_memory_rw/ro() calls to protect the trampolines after > modification. > > Signed-off-by: Thomas Gleixner <t...@linutronix.de> OK, I pulled this in and I'm currently running it through my test suite. I'm about to board a flight, hopefully it runs smoothly and will finish by the time I get home. -- Steve
