linux-kernel - [PATCH 4.9 22/78] i40e: Fix of memory leak and integer truncation in i40e

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Date:   Tue, 17 Nov 2020 14:04:48 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Martyna Szapar <martyna.szapar@...el.com>,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
        Ben Hutchings <ben.hutchings@...ethink.co.uk>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.9 22/78] i40e: Fix of memory leak and integer truncation in i40e_virtchnl.c

From: Martyna Szapar <martyna.szapar@...el.com>

commit 24474f2709af6729b9b1da1c5e160ab62e25e3a4 upstream.

Fixed possible memory leak in i40e_vc_add_cloud_filter function:
cfilter is being allocated and in some error conditions
the function returns without freeing the memory.

Fix of integer truncation from u16 (type of queue_id value) to u8
when calling i40e_vc_isvalid_queue_id function.

Signed-off-by: Martyna Szapar <martyna.szapar@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
[bwh: Backported to 4.9: i40e_vc_add_cloud_filter() does not exist
 but the integer truncation is still possible]
Signed-off-by: Ben Hutchings <ben.hutchings@...ethink.co.uk>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 2 +-
 1 file changed, 1 insertion(+), 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 8499fe7cff3bb..e6798b0d1cae0 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -188,7 +188,7 @@ static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
  * check for the valid queue id
  **/
 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
-					    u8 qid)
+					    u16 qid)
 {
 	struct i40e_pf *pf = vf->pf;
 	struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
-- 
2.27.0