Commit 7f0a84c2 authored May 03, 2017 by Andrey Konovalov Committed by Linus Torvalds May 03, 2017

kasan: change report header

Change report header format from:

  BUG: KASAN: use-after-free in unwind_get_return_address+0x28a/0x2c0 at addr ffff880069437950
  Read of size 8 by task insmod/3925

to:

  BUG: KASAN: use-after-free in unwind_get_return_address+0x28a/0x2c0
  Read of size 8 at addr ffff880069437950 by task insmod/3925

The exact access address is not usually important, so move it to the
second line.  This also makes the header look visually balanced.

Link: http://lkml.kernel.org/r/20170302134851.101218-6-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>

parent db429f16

mm/kasan/report.c

+4 −4

Original line number	Original line	Diff line number	Diff line
	@@ -132,11 +132,11 @@ static void print_error_description(struct kasan_access_info *info)
	{		{
	const char *bug_type = get_bug_type(info);		const char *bug_type = get_bug_type(info);

	pr_err("BUG: KASAN: %s in %pS at addr %p\n",		pr_err("BUG: KASAN: %s in %pS\n",
	bug_type, (void *)info->ip, info->access_addr);		bug_type, (void *)info->ip);
	pr_err("%s of size %zu by task %s/%d\n",		pr_err("%s of size %zu at addr %p by task %s/%d\n",
	info->is_write ? "Write" : "Read", info->access_size,		info->is_write ? "Write" : "Read", info->access_size,
	current->comm, task_pid_nr(current));		info->access_addr, current->comm, task_pid_nr(current));
	}		}

	static inline bool kernel_or_module_addr(const void *addr)		static inline bool kernel_or_module_addr(const void *addr)