netdev - [net-next 06/10] i40e: check queue pairs num in config queues handler

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190122195940.21123-7-jeffrey.t.kirsher@intel.com>
Date:   Tue, 22 Jan 2019 11:59:36 -0800
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     davem@...emloft.net
Cc:     Sergey Nemov <sergey.nemov@...el.com>, netdev@...r.kernel.org,
        nhorman@...hat.com, sassmann@...hat.com,
        Andrew Bowers <andrewx.bowers@...el.com>,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 06/10] i40e: check queue pairs num in config queues handler

From: Sergey Nemov <sergey.nemov@...el.com>

Check if num_queue_pairs number requested by VF is less than
maximum possible value in VIRTCHNL_OP_CONFIG_VSI_QUEUES handler.

Also check if local_vf_id >= 0 in common handler since it is of
int type and can potentially be negative.

Signed-off-by: Sergey Nemov <sergey.nemov@...el.com>
Tested-by: Andrew Bowers <andrewx.bowers@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 2ac23ebfbf31..f62937045c5d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -2069,6 +2069,11 @@ static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
 		goto error_param;
 	}
 
+	if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) {
+		aq_ret = I40E_ERR_PARAM;
+		goto error_param;
+	}
+
 	for (i = 0; i < qci->num_queue_pairs; i++) {
 		qpi = &qci->qpair[i];
 
@@ -3656,7 +3661,7 @@ int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
 	int ret;
 
 	pf->vf_aq_requests++;
-	if (local_vf_id >= pf->num_alloc_vfs)
+	if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs)
 		return -EINVAL;
 	vf = &(pf->vf[local_vf_id]);
 
-- 
2.20.1