From: Arvind Sankar <nived...@alum.mit.edu> [ Upstream commit 67d631b7c05eff955ccff4139327f0f92a5117e5 ]
This currently leaks kernel physical addresses into userspace. Signed-off-by: Arvind Sankar <nived...@alum.mit.edu> Signed-off-by: Borislav Petkov <b...@suse.de> Acked-by: Kees Cook <keesc...@chromium.org> Acked-by: Dave Hansen <dave.han...@intel.com> Link: https://lkml.kernel.org/r/20200229231120.1147527-1-nived...@alum.mit.edu Signed-off-by: Sasha Levin <sas...@kernel.org> --- arch/x86/mm/init.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index ce092a62fc5d..bc2455c2fcab 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -110,8 +110,6 @@ __ref void *alloc_low_pages(unsigned int num) } else { pfn = pgt_buf_end; pgt_buf_end += num; - printk(KERN_DEBUG "BRK [%#010lx, %#010lx] PGTABLE\n", - pfn << PAGE_SHIFT, (pgt_buf_end << PAGE_SHIFT) - 1); } for (i = 0; i < num; i++) { -- 2.25.1
