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UPSTREAM: kasan: separate report parts by empty lines

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Makes the report easier to read.

Link: http://lkml.kernel.org/r/20170302134851.101218-10-andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Bug: 64145065
(cherry-picked from b193859936)
Change-Id: I8cc010a73e257cb08c7a2537d7aabd3c9c2c8116
Signed-off-by: Paul Lawrence <paullawrence@google.com>
This commit is contained in:
Andrey Konovalov
2017-05-03 14:56:50 -07:00
committed by Paul Lawrence
parent bef4eb3c70
commit 37070c19d5
1 changed files with 7 additions and 0 deletions
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7
mm/kasan/report.c
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@@ -237,7 +237,9 @@ static void describe_object(struct kmem_cache *cache, void *object,
if (cache->flags & SLAB_KASAN) {
print_track(&alloc_info->alloc_track, "Allocated");
pr_err("\n");
print_track(&alloc_info->free_track, "Freed");
pr_err("\n");
}
describe_object_addr(cache, object, addr);
@@ -248,6 +250,7 @@ static void print_address_description(void *addr)
struct page *page = addr_to_page(addr);
dump_stack();
pr_err("\n");
if (page && PageSlab(page)) {
struct kmem_cache *cache = page->slab_cache;
@@ -326,7 +329,9 @@ void kasan_report_double_free(struct kmem_cache *cache, void *object,
kasan_start_report(&flags);
pr_err("BUG: KASAN: double-free or invalid-free in %pS\n", ip);
pr_err("\n");
print_address_description(object);
pr_err("\n");
print_shadow_for_address(object);
kasan_end_report(&flags);
}
@@ -338,11 +343,13 @@ static void kasan_report_error(struct kasan_access_info *info)
kasan_start_report(&flags);
print_error_description(info);
pr_err("\n");
if (!addr_has_shadow(info)) {
dump_stack();
} else {
print_address_description((void *)info->access_addr);
pr_err("\n");
print_shadow_for_address(info->first_bad_addr);
}