On Thu, Nov 14, 2024 at 11:17:46PM -0600, Gax-c wrote:

From: Zichen Xie zichenxie0106@gmail.com

kunit_kzalloc() may return a NULL pointer, dereferencing it without NULL check may lead to NULL dereference. Add a NULL check for test_state.

Fixes: d03c720e03bd ("kunit: Add APIs for managing devices") Signed-off-by: Zichen Xie zichenxie0106@gmail.com

---

lib/kunit/kunit-test.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/lib/kunit/kunit-test.c b/lib/kunit/kunit-test.c index 37e02be1e710..d9c781c859fd 100644 --- a/lib/kunit/kunit-test.c +++ b/lib/kunit/kunit-test.c @@ -805,6 +805,8 @@ static void kunit_device_driver_test(struct kunit *test) struct device *test_device; struct driver_test_state *test_state = kunit_kzalloc(test, sizeof(*test_state), GFP_KERNEL);

• KUNIT_ASSERT_NOT_ERR_OR_NULL(test, test_state);
• test->priv = test_state; test_driver = kunit_driver_create(test, "my_driver");

2.34.1

Hi,

This is the friendly patch-bot of Greg Kroah-Hartman. You have sent him a patch that has triggered this response. He used to manually respond to these common problems, but in order to save his sanity (he kept writing the same thing over and over, yet to different people), I was created. Hopefully you will not take offence and will fix the problem in your patch and resubmit it so that it can be accepted into the Linux kernel tree.

You are receiving this message because of the following common error(s) as indicated below:

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