From: Gustavo A. R. Silva gustavo@embeddedor.com
commit 3e21d9a501bf99aee2e5835d7f34d8c823f115b5 upstream.
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 Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- lib/test_kasan.c | 1 + 1 file changed, 1 insertion(+)
--- a/lib/test_kasan.c +++ b/lib/test_kasan.c @@ -126,6 +126,7 @@ static noinline void __init kmalloc_oob_ if (!ptr1 || !ptr2) { pr_err("Allocation failed\n"); kfree(ptr1); + kfree(ptr2); return; }