On Thu, 2024-06-06 at 19:13 +0800, Xuan Zhuo wrote: > Add kmsan for virtqueue_dma_map_single_attrs to fix: > > BUG: KMSAN: uninit-value in receive_buf+0x45ca/0x6990 > receive_buf+0x45ca/0x6990 > virtnet_poll+0x17e0/0x3130 > net_rx_action+0x832/0x26e0 > handle_softirqs+0x330/0x10f0 > [...] > > Uninit was created at: > __alloc_pages_noprof+0x62a/0xe60 > alloc_pages_noprof+0x392/0x830 > skb_page_frag_refill+0x21a/0x5c0 > virtnet_rq_alloc+0x50/0x1500 > try_fill_recv+0x372/0x54c0 > virtnet_open+0x210/0xbe0 > __dev_open+0x56e/0x920 > __dev_change_flags+0x39c/0x2000 > dev_change_flags+0xaa/0x200 > do_setlink+0x197a/0x7420 > rtnl_setlink+0x77c/0x860 > [...] > > Signed-off-by: Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx> > Tested-by: Alexander Potapenko <glider@xxxxxxxxxx> > --- > drivers/virtio/virtio_ring.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) Tested-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx> # s390x Thanks!
