Re: [Linaro-mm-sig] [PATCH] dma-buf/udmabuf: Fix NULL pointer dereference in udmabuf_create

On Tue, Sep 04, 2018 at 02:07:49PM -0500, Gustavo A. R. Silva wrote:

There is a potential execution path in which pointer memfd is NULL when passed as argument to fput(), hence there is a NULL pointer dereference in fput().

Fix this by null checking *memfd* before calling fput().

Addresses-Coverity-ID: 1473174 ("Explicit null dereferenced") Fixes: fbb0de795078 ("Add udmabuf misc device") Signed-off-by: Gustavo A. R. Silva gustavo@embeddedor.com

Pushed to drm-misc-next.

thanks, Gerd