diff options
Diffstat (limited to 'mm/kasan/report.c')
| -rw-r--r-- | mm/kasan/report.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/mm/kasan/report.c b/mm/kasan/report.c index 8fff1825b22c..884a950c7026 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -39,6 +39,31 @@ static unsigned long kasan_flags; #define KASAN_BIT_REPORTED 0 #define KASAN_BIT_MULTI_SHOT 1 +enum kasan_arg_fault { + KASAN_ARG_FAULT_DEFAULT, + KASAN_ARG_FAULT_REPORT, + KASAN_ARG_FAULT_PANIC, +}; + +static enum kasan_arg_fault kasan_arg_fault __ro_after_init = KASAN_ARG_FAULT_DEFAULT; + +/* kasan.fault=report/panic */ +static int __init early_kasan_fault(char *arg) +{ + if (!arg) + return -EINVAL; + + if (!strcmp(arg, "report")) + kasan_arg_fault = KASAN_ARG_FAULT_REPORT; + else if (!strcmp(arg, "panic")) + kasan_arg_fault = KASAN_ARG_FAULT_PANIC; + else + return -EINVAL; + + return 0; +} +early_param("kasan.fault", early_kasan_fault); + bool kasan_save_enable_multi_shot(void) { return test_and_set_bit(KASAN_BIT_MULTI_SHOT, &kasan_flags); @@ -102,10 +127,8 @@ static void end_report(unsigned long *flags, unsigned long addr) panic_on_warn = 0; panic("panic_on_warn set ...\n"); } -#ifdef CONFIG_KASAN_HW_TAGS - if (kasan_flag_panic) + if (kasan_arg_fault == KASAN_ARG_FAULT_PANIC) panic("kasan.fault=panic set ...\n"); -#endif kasan_enable_current(); } |