On Sun, Jun 12, 2022 at 10:32:25PM +0100, Matthew Wilcox (Oracle) wrote: > vmalloc does not allocate a vm_struct for vm_map_ram() areas. That causes > us to deny usercopies from those areas. This affects XFS which uses > vm_map_ram() for its directories. > > Fix this by calling find_vmap_area() instead of find_vm_area(). Thanks for the fixes! > [...] > + /* XXX: We should also abort for free vmap_areas */ What's needed to detect this? -- Kees Cook
