[lvc-project] [PATCH] usb: gadget: net2280: fix NULL pointer dereference
Greg Kroah-Hartman
gregkh at linuxfoundation.org
Thu Mar 16 19:19:35 MSK 2023
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
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