[PATCH 5.11 164/210] net: cls_api: Fix uninitialised struct field bo->unlocked_driver_cb

Greg Kroah-Hartman
2021-04-12T09:43:37Z

From: Yunjian Wang <wangyunjian@huawei.com>

[ Upstream commit 990b03b05b2fba79de2a1ee9dc359fc552d95ba6 ]

The 'unlocked_driver_cb' struct field in 'bo' is not being initialized
in tcf_block_offload_init(). The uninitialized 'unlocked_driver_cb'
will be used when calling unlocked_driver_cb(). So initialize 'bo' to
zero to avoid the issue.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 0fdcf78d5973 ("net: use flow_indr_dev_setup_offload()")
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/sched/cls_api.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 87cac07da7c3..b3a2cba130a1 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -646,7 +646,7 @@ static void tc_block_indr_cleanup(struct flow_block_cb *block_cb)
struct net_device *dev = block_cb->indr.dev;
struct Qdisc *sch = block_cb->indr.sch;
struct netlink_ext_ack extack = {};
- struct flow_block_offload bo;
+ struct flow_block_offload bo = {};

tcf_block_offload_init(&bo, dev, sch, FLOW_BLOCK_UNBIND,
block_cb->indr.binder_type,
--
2.30.2