Re: [PATCH] usb: gadget: net2280: fix NULL pointer dereference

[Greg Kroah-Hartman]

On Thu, Mar 16, 2023 at 06:53:55PM +0300, Valery Zabrovsky wrote:
> In net2280_free_request():
> If _ep is NULL, then ep is NULL and is dereferenced
> while trying to produce an error message.

How can that ever happen?  How did you test and hit this?

> The patch replaces dev_err() with pr_err() which works fine.

That's not a good idea for driver code to use, sorry.

> Found by Linux Verification Center (linuxtesting.org) with SVACE.

As I have said before, your testing framework needs a lot more work.

good luck!

greg k-h