On Wed, Feb 16, 2022 at 10:59 AM Marco Elver <elver@xxxxxxxxxx> wrote: > > On Tue, 15 Feb 2022 at 17:52, <andrey.konovalov@xxxxxxxxx> wrote: > > > > From: Andrey Konovalov <andreyknvl@xxxxxxxxxx> > > > > That patch didn't update the case when a stack is retrived from > > cached_stacks in alloc_thread_stack_node(). As cached_stacks stores > > vm_structs and not stack pointers themselves, the pointer tag needs > > to be reset there as well. > > > > Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx> > > Reviewed-by: Marco Elver <elver@xxxxxxxxxx> > > Did the test catch this? If not, can this be tested? Kind of, the kernel crashes on boot. I got KASAN_STACK accidentally disabled in my SW_TAGS config, so I didn't see the crash until now.
