Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 8b0f93d9 authored by Devesh Sharma's avatar Devesh Sharma Committed by Roland Dreier
Browse files

IB/core: Clear AH attr variable to prevent garbage data 



During create-ah from userspace, uverbs is sending garbage data in
attr.dmac and attr.vlan_id.  This patch sets attr.dmac and
attr.vlan_id to zero.

Fixes: dd5f03be ("IB/core: Ethernet L2 attributes in verbs/cm structures")
Signed-off-by: default avatarDevesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent fe82dcec

drivers/infiniband/core/uverbs_cmd.c

+2 −0
Original line number Diff line number Diff line
@@ -2518,6 +2518,8 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file, 
	attr.grh.sgid_index    = cmd.attr.grh.sgid_index;

	attr.grh.hop_limit     = cmd.attr.grh.hop_limit;

	attr.grh.traffic_class = cmd.attr.grh.traffic_class;

	attr.vlan_id           = 0;

	memset(&attr.dmac, 0, sizeof(attr.dmac));

	memcpy(attr.grh.dgid.raw, cmd.attr.grh.dgid, 16);



	ah = ib_create_ah(pd, &attr);