From: "Gustavo A. R. Silva" gustavo@embeddedor.com Subject: lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more()

In case memory resources for _ptr2_ were allocated, release them before return.

Notice that in case _ptr1_ happens to be NULL, krealloc() behaves exactly like kmalloc().

Addresses-Coverity-ID: 1490594 ("Resource leak") Link: http://lkml.kernel.org/r/20200123160115.GA4202@embeddedor Fixes: 3f15801cdc23 ("lib: add kasan test module") Signed-off-by: Gustavo A. R. Silva gustavo@embeddedor.com Reviewed-by: Dmitry Vyukov dvyukov@google.com Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

lib/test_kasan.c | 1 + 1 file changed, 1 insertion(+)

--- a/lib/test_kasan.c~lib-test_kasanc-fix-memory-leak-in-kmalloc_oob_krealloc_more +++ a/lib/test_kasan.c @@ -158,6 +158,7 @@ static noinline void __init kmalloc_oob_ if (!ptr1 || !ptr2) { pr_err("Allocation failed\n"); kfree(ptr1); + kfree(ptr2); return; }

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