For security, only show the virtual kernel memory layout if KASLR is disabled. Signed-off-by: Arvind Sankar <nivedita@xxxxxxxxxxxx> --- arch/x86/mm/init_32.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 23df4885bbed..53635be69102 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -788,6 +788,10 @@ void __init mem_init(void) x86_init.hyper.init_after_bootmem(); mem_init_print_info(NULL); + + if (kaslr_enabled()) + goto skip_layout; + printk(KERN_INFO "virtual kernel memory layout:\n" " fixmap : 0x%08lx - 0x%08lx (%4ld kB)\n" " cpu_entry : 0x%08lx - 0x%08lx (%4ld kB)\n" @@ -827,6 +831,7 @@ void __init mem_init(void) (unsigned long)&_text, (unsigned long)&_etext, ((unsigned long)&_etext - (unsigned long)&_text) >> 10); +skip_layout: /* * Check boundaries twice: Some fundamental inconsistencies can * be detected at build time already. -- 2.24.1
