diff options
| -rw-r--r-- | mm/kasan/kasan.h | 2 | ||||
| -rw-r--r-- | mm/kasan/report_sw_tags.c | 12 |
2 files changed, 13 insertions, 1 deletions
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index d1e111b7d5d8..4447df0d7343 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -274,7 +274,7 @@ void *kasan_find_first_bad_addr(void *addr, size_t size); const char *kasan_get_bug_type(struct kasan_access_info *info); void kasan_metadata_fetch_row(char *buffer, void *row); -#if defined(CONFIG_KASAN_GENERIC) && defined(CONFIG_KASAN_STACK) +#if defined(CONFIG_KASAN_STACK) void kasan_print_address_stack_frame(const void *addr); #else static inline void kasan_print_address_stack_frame(const void *addr) { } diff --git a/mm/kasan/report_sw_tags.c b/mm/kasan/report_sw_tags.c index d2298c357834..7271f0988fc0 100644 --- a/mm/kasan/report_sw_tags.c +++ b/mm/kasan/report_sw_tags.c @@ -16,6 +16,7 @@ #include <linux/mm.h> #include <linux/printk.h> #include <linux/sched.h> +#include <linux/sched/task_stack.h> #include <linux/slab.h> #include <linux/stackdepot.h> #include <linux/stacktrace.h> @@ -51,3 +52,14 @@ void kasan_print_tags(u8 addr_tag, const void *addr) pr_err("Pointer tag: [%02x], memory tag: [%02x]\n", addr_tag, *shadow); } + +#ifdef CONFIG_KASAN_STACK +void kasan_print_address_stack_frame(const void *addr) +{ + if (WARN_ON(!object_is_on_stack(addr))) + return; + + pr_err("The buggy address belongs to stack of task %s/%d\n", + current->comm, task_pid_nr(current)); +} +#endif |