From 27147273a68ecf5738ef87ccc6cd4bb8883fca84 Mon Sep 17 00:00:00 2001 From: Kamenee Arumugam Date: Mon, 21 Aug 2017 18:26:32 -0700 Subject: [PATCH] IB/qib: Stricter bounds checking for copy and array access Added checking on index value of array 'guids' in qib_ruc.c. Pass in corrrect size of array for memset operation in qib_mad.c. Reviewed-by: Michael J. Ruhl Signed-off-by: Kamenee Arumugam Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/hw/qib/qib_mad.c | 4 ++-- drivers/infiniband/hw/qib/qib_ruc.c | 6 ++++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/hw/qib/qib_mad.c b/drivers/infiniband/hw/qib/qib_mad.c index 549c71971a1f..82d9da9b6997 100644 --- a/drivers/infiniband/hw/qib/qib_mad.c +++ b/drivers/infiniband/hw/qib/qib_mad.c @@ -1573,8 +1573,8 @@ static int pma_get_portcounters_cong(struct ib_pma_mad *pmp, cntrs.port_xmit_packets -= ibp->z_port_xmit_packets; cntrs.port_rcv_packets -= ibp->z_port_rcv_packets; - memset(pmp->reserved, 0, sizeof(pmp->reserved) + - sizeof(pmp->data)); + memset(pmp->reserved, 0, sizeof(pmp->reserved)); + memset(pmp->data, 0, sizeof(pmp->data)); /* * Set top 3 bits to indicate interval in picoseconds in diff --git a/drivers/infiniband/hw/qib/qib_ruc.c b/drivers/infiniband/hw/qib/qib_ruc.c index e6a42a8972f5..53efbb0b40c4 100644 --- a/drivers/infiniband/hw/qib/qib_ruc.c +++ b/drivers/infiniband/hw/qib/qib_ruc.c @@ -645,8 +645,10 @@ u32 qib_make_grh(struct qib_ibport *ibp, struct ib_grh *hdr, hdr->hop_limit = grh->hop_limit; /* The SGID is 32-bit aligned. */ hdr->sgid.global.subnet_prefix = ibp->rvp.gid_prefix; - hdr->sgid.global.interface_id = grh->sgid_index ? - ibp->guids[grh->sgid_index - 1] : ppd_from_ibp(ibp)->guid; + if (!grh->sgid_index) + hdr->sgid.global.interface_id = ppd_from_ibp(ibp)->guid; + else if (grh->sgid_index < QIB_GUIDS_PER_PORT) + hdr->sgid.global.interface_id = ibp->guids[grh->sgid_index - 1]; hdr->dgid = grh->dgid; /* GRH header size in 32-bit words. */ -- 2.11.0