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Groups > linux.kernel > #1211026
| From | Wang Long <long.wanglong@huawei.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [RFC PATCH] test_kasan: make kmalloc_oob_krealloc_less more correctly |
| Date | 2015-08-21 11:00 +0200 |
| Message-ID | <pZQl5-77f-17@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
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, use size2 is more correctly. Signed-off-by: Wang Long <long.wanglong@huawei.com> --- lib/test_kasan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/test_kasan.c b/lib/test_kasan.c index 044c54d..c1efb1b 100644 --- a/lib/test_kasan.c +++ b/lib/test_kasan.c @@ -114,7 +114,7 @@ static noinline void __init kmalloc_oob_krealloc_less(void) kfree(ptr1); return; } - ptr2[size1] = 'x'; + ptr2[size2] = 'x'; kfree(ptr2); } -- 1.8.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[RFC PATCH] test_kasan: make kmalloc_oob_krealloc_less more correctly Wang Long <long.wanglong@huawei.com> - 2015-08-21 11:00 +0200
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