From 287683d027a3ff83feb6c7044430c79881664ecf Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Tue, 31 Oct 2017 20:09:54 +0200 Subject: [PATCH] RDMA/nldev: Enforce device index check for port callback IB device index is nldev's handler and it should be checked always. Fixes: c3f66f7b0052 ("RDMA/netlink: Implement nldev port doit callback") Signed-off-by: Leon Romanovsky Acked-by: Doug Ledford [ Applying directly, since Doug fried his SSD's and is rebuilding - Linus ] Signed-off-by: Linus Torvalds --- drivers/infiniband/core/nldev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 3ba24c428c3b..2fae850a3eff 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -214,7 +214,9 @@ static int nldev_port_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, nldev_policy, extack); - if (err || !tb[RDMA_NLDEV_ATTR_PORT_INDEX]) + if (err || + !tb[RDMA_NLDEV_ATTR_DEV_INDEX] || + !tb[RDMA_NLDEV_ATTR_PORT_INDEX]) return -EINVAL; index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]); -- 2.20.1