This is a note to let you know that I've just added the patch titled
i40e: potential array underflow in i40e_vc_process_vf_msg()
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
i40e-potential-array-underflow-in-i40e_vc_process_vf_msg.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c243e96335c56e56dcf6a00593104554fb06b689 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Wed, 15 Jan 2014 06:43:39 +0000
Subject: i40e: potential array underflow in i40e_vc_process_vf_msg()
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
commit c243e96335c56e56dcf6a00593104554fb06b689 upstream.
If "vf_id" is smaller than hw->func_caps.vf_base_id then it leads to
an array underflow of the pf->vf[] array. This is unlikely to happen
unless the hardware is bad, but it's a small change and it silences a
static checker warning.
Fixes: 7efa84b7abc1 ('i40e: support VFs on PFs other than 0')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Tested-by: Sibai Li <sibai.li@xxxxxxxxx>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -1776,7 +1776,7 @@ int i40e_vc_process_vf_msg(struct i40e_p
u32 v_retval, u8 *msg, u16 msglen)
{
struct i40e_hw *hw = &pf->hw;
- int local_vf_id = vf_id - hw->func_caps.vf_base_id;
+ unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
struct i40e_vf *vf;
int ret;
Patches currently in stable-queue which might be from dan.carpenter@xxxxxxxxxx are
queue-3.14/i40e-potential-array-underflow-in-i40e_vc_process_vf_msg.patch
queue-3.14/drm-radeon-si-make-sure-mc-ucode-is-loaded-before-checking-the-size.patch
queue-3.14/drm-radeon-ci-make-sure-mc-ucode-is-loaded-before-checking-the-size.patch
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