Commit 7d11f77f authored Jan 03, 2018 by Mohamed Ghannam Committed by David S. Miller Jan 04, 2018

RDS: null pointer dereference in rds_atomic_free_op



set rm->atomic.op_active to 0 when rds_pin_pages() fails
or the user supplied address is invalid,
this prevents a NULL pointer usage in rds_atomic_free_op()

Signed-off-by: Mohamed Ghannam <simo.ghannam@gmail.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent dfe8266b

net/rds/rdma.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -877,6 +877,7 @@ int rds_cmsg_atomic(struct rds_sock rs, struct rds_message rm,
		err:
		if (page)
		put_page(page);
		rm->atomic.op_active = 0;
		kfree(rm->atomic.op_notifier);

		return ret;