Here, kasan is disabled if specified 'kasan=off' in kernel cmdline. Signed-off-by: Baoquan He Cc: x86@kernel.org --- arch/x86/mm/kasan_init_64.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c index 998b6010d6d3..5ebf2850c77d 100644 --- a/arch/x86/mm/kasan_init_64.c +++ b/arch/x86/mm/kasan_init_64.c @@ -343,6 +343,10 @@ void __init kasan_init(void) unsigned long shadow_cea_begin, shadow_cea_per_cpu_begin, shadow_cea_end; int i; + /* If KASAN is disabled via command line, don't initialize it. */ + if (kasan_arg_disabled) + return; + memcpy(early_top_pgt, init_top_pgt, sizeof(early_top_pgt)); /* -- 2.52.0