diff options
| -rw-r--r-- | mm/kasan/kasan.h | 5 | ||||
| -rw-r--r-- | mm/kasan/report.c | 17 |
2 files changed, 19 insertions, 3 deletions
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index 4fddfdb08abf..7e07115873d3 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -153,12 +153,15 @@ enum kasan_report_type { }; struct kasan_report_info { + /* Filled in by kasan_report_*(). */ enum kasan_report_type type; void *access_addr; - void *first_bad_addr; size_t access_size; bool is_write; unsigned long ip; + + /* Filled in by the common reporting code. */ + void *first_bad_addr; }; /* Do not change the struct layout: compiler ABI. */ diff --git a/mm/kasan/report.c b/mm/kasan/report.c index dc38ada86f85..0c2e7a58095d 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -413,6 +413,17 @@ static void print_report(struct kasan_report_info *info) } } +static void complete_report_info(struct kasan_report_info *info) +{ + void *addr = kasan_reset_tag(info->access_addr); + + if (info->type == KASAN_REPORT_ACCESS) + info->first_bad_addr = kasan_find_first_bad_addr( + info->access_addr, info->access_size); + else + info->first_bad_addr = addr; +} + void kasan_report_invalid_free(void *ptr, unsigned long ip, enum kasan_report_type type) { unsigned long flags; @@ -430,11 +441,12 @@ void kasan_report_invalid_free(void *ptr, unsigned long ip, enum kasan_report_ty info.type = type; info.access_addr = ptr; - info.first_bad_addr = kasan_reset_tag(ptr); info.access_size = 0; info.is_write = false; info.ip = ip; + complete_report_info(&info); + print_report(&info); end_report(&flags, ptr); @@ -463,11 +475,12 @@ bool kasan_report(unsigned long addr, size_t size, bool is_write, info.type = KASAN_REPORT_ACCESS; info.access_addr = ptr; - info.first_bad_addr = kasan_find_first_bad_addr(ptr, size); info.access_size = size; info.is_write = is_write; info.ip = ip; + complete_report_info(&info); + print_report(&info); end_report(&irq_flags, ptr); |