[PATCH V11 5/5] kasan: use %px to print addresses instead of %p

Tobin C. Harding
2017-11-29T02:06:03Z

Pointers printed with %p are now hashed by default. Kasan needs the
actual address. We can use the new printk specifier %px for this
purpose.

Use %px instead of %p to print addresses.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
---
mm/kasan/report.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 6bcfb01ba038..410c8235e671 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -134,7 +134,7 @@ static void print_error_description(struct kasan_access_info *info)

pr_err("BUG: KASAN: %s in %pS\n",
bug_type, (void *)info->ip);
- pr_err("%s of size %zu at addr %p by task %s/%d\n",
+ pr_err("%s of size %zu at addr %px by task %s/%d\n",
info->is_write ? "Write" : "Read", info->access_size,
info->access_addr, current->comm, task_pid_nr(current));
}
@@ -206,7 +206,7 @@ static void describe_object_addr(struct kmem_cache *cache, void *object,
const char *rel_type;
int rel_bytes;

- pr_err("The buggy address belongs to the object at %p\n"
+ pr_err("The buggy address belongs to the object at %px\n"
" which belongs to the cache %s of size %d\n",
object, cache->name, cache->object_size);

@@ -225,7 +225,7 @@ static void describe_object_addr(struct kmem_cache *cache, void *object,
}

pr_err("The buggy address is located %d bytes %s of\n"
- " %d-byte region [%p, %p)\n",
+ " %d-byte region [%px, %px)\n",
rel_bytes, rel_type, cache->object_size, (void *)object_addr,
(void *)(object_addr + cache->object_size));
}
@@ -302,7 +302,7 @@ static void print_shadow_for_address(const void *addr)
char shadow_buf[SHADOW_BYTES_PER_ROW];

snprintf(buffer, sizeof(buffer),
- (i == 0) ? ">%p: " : " %p: ", kaddr);
+ (i == 0) ? ">%px: " : " %px: ", kaddr);
/*
* We should not pass a shadow pointer to generic
* function, because generic functions may try to
--
2.7.4