Commit 6b4a35fc authored Sep 09, 2015 by Wang Long Committed by Linus Torvalds Sep 10, 2015

lib/test_kasan.c: make kmalloc_oob_krealloc_less more correctly



In kmalloc_oob_krealloc_less, I think it is better to test
the size2 boundary.

If we do not call krealloc, the access of position size1 will still cause
out-of-bounds and access of position size2 does not.  After call krealloc,
the access of position size2 cause out-of-bounds.  So using size2 is more
correct.

Signed-off-by: Wang Long <long.wanglong@huawei.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 9789d8e0

lib/test_kasan.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -114,7 +114,7 @@ static noinline void __init kmalloc_oob_krealloc_less(void)
		kfree(ptr1);
		return;
		}
		ptr2[size1] = 'x';
		ptr2[size2] = 'x';
		kfree(ptr2);
		}