Return value of a function 'xdp_convert_buff_to_frame' is dereferenced without checking for null, but it is usually checked for this function. This fixed in upstream commit <e8223eeff02> while refactoring. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Peter Kosyh <pkosyh@xxxxxxxxx> --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 52414ac2c901..9e6b2bd73dac 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -237,6 +237,8 @@ static int ena_xdp_tx_map_buff(struct ena_ring *xdp_ring, u32 size; tx_info->xdpf = xdp_convert_buff_to_frame(xdp); + if (unlikely(!tx_info->xdpf)) + goto error_report_dma_error; size = tx_info->xdpf->len; ena_buf = tx_info->bufs; -- 2.37.0
