This is an automatic generated email to let you know that the following patch were queued:

Subject: media: vb2: check memory model for VIDIOC_CREATE_BUFS Author: Hans Verkuil hverkuil-cisco@xs4all.nl Date: Thu Nov 8 07:23:37 2018 -0500

vb2_core_create_bufs did not check if the memory model for newly added buffers is the same as for already existing buffers. It should return an error if they aren't the same.

Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Reported-by: syzbot+e1fb118a2ebb88031d21@syzkaller.appspotmail.com Cc: stable@vger.kernel.org # for v4.16 and up Signed-off-by: Mauro Carvalho Chehab mchehab+samsung@kernel.org

drivers/media/common/videobuf2/videobuf2-core.c | 3 +++ 1 file changed, 3 insertions(+)

---

diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c index 2fcab61b8ff5..03954c13024c 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -812,6 +812,9 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory, memset(q->alloc_devs, 0, sizeof(q->alloc_devs)); q->memory = memory; q->waiting_for_buffers = !q->is_output; + } else if (q->memory != memory) { + dprintk(1, "memory model mismatch\n"); + return -EINVAL; }

num_buffers = min(*count, VB2_MAX_FRAME - q->num_buffers);