Commit 77a9b90d authored Dec 24, 2018 by Aditya Pakki Committed by Greg Kroah-Hartman Dec 05, 2019

infiniband/qedr: Potential null ptr dereference of qp



[ Upstream commit 9c6260de505b63638dd86fcc33849b17f6146d94 ]

idr_find() may fail and return a NULL pointer. The fix checks the return
value of the function and returns an error in case of NULL.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 6a9d929b

drivers/infiniband/hw/qedr/qedr_iw_cm.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -492,6 +492,8 @@ int qedr_iw_connect(struct iw_cm_id cm_id, struct iw_cm_conn_param conn_param)
		int i;

		qp = idr_find(&dev->qpidr.idr, conn_param->qpn);
		if (unlikely(!qp))
		return -EINVAL;

		laddr = (struct sockaddr_in *)&cm_id->m_local_addr;
		raddr = (struct sockaddr_in *)&cm_id->m_remote_addr;