From: Mitch Williams <mitch.a.williams@intel.com> Date: Thu, 28 Nov 2013 06:39:39 +0000 (+0000) Subject: i40e: don't allocate zero size X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=3197ce220c821b869731872251f2e225c37cbbb0;p=openwrt%2Fstaging%2Fblogic.git i40e: don't allocate zero size Shockingly, the compiler didn't flag this uninitialized variable. This fixes a potential memory corruption condition where ARQ messages are written to random memory locations. Change-Id: Iac82f4562d2bf3f42df3f3b2163d9cbed2160135 Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Sibai Li <sibai.li@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> --- diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index c0d7fe6ef2eb..40484e012637 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -4492,6 +4492,7 @@ static void i40e_clean_adminq_subtask(struct i40e_pf *pf) if (!test_bit(__I40E_ADMINQ_EVENT_PENDING, &pf->state)) return; + event.msg_size = I40E_MAX_AQ_BUF_SIZE; event.msg_buf = kzalloc(event.msg_size, GFP_KERNEL); if (!event.msg_buf) return;