Re: [Intel-wired-lan] [PATCH iwl-net v1 1/2] iavf: fix ASQ command buffer leak on init failure

From: [email protected] <[email protected]> 
Sent: Wednesday, July 15, 2026 8:12 AM

>From: Xuanqiang Luo <[email protected]>
>
>iavf_alloc_adminq_asq_ring() allocates cmd_buf before the remaining ASQ
>resources. If iavf_alloc_asq_bufs() or iavf_config_asq_regs() fails, the
>unwind path elides cmd_buf while freeing the other allocations.
>
>The ASQ count is not set until initialization succeeds, so the shutdown
>path cannot reclaim the buffer. Free cmd_buf in the common unwind path.
>
>Fixes: d358aa9a7a2d ("i40evf: init code and hardware support")
>Cc: [email protected]
>Signed-off-by: Xuanqiang Luo <[email protected]>
>---
> drivers/net/ethernet/intel/iavf/iavf_adminq.c | 1 +
> 1 file changed, 1 insertion(+)
>
>diff --git a/drivers/net/ethernet/intel/iavf/iavf_adminq.c b/drivers/net/ethernet/intel/iavf/iavf_adminq.c
>index 6937b7dd44cbb..82a32f8e78c12 100644
>--- a/drivers/net/ethernet/intel/iavf/iavf_adminq.c
>+++ b/drivers/net/ethernet/intel/iavf/iavf_adminq.c
>@@ -346,6 +346,7 @@ static enum iavf_status iavf_init_asq(struct iavf_hw *hw)
> 	iavf_free_virt_mem(hw, &hw->aq.asq.dma_head);
> 
> init_adminq_free_rings:
>+	iavf_free_virt_mem(hw, &hw->aq.asq.cmd_buf);

Hi Xuanqiang
much thanks for the patches!

how about moving that line directly into iavf_free_adminq_asq()?
then free func would be paired 1:1 with alloc func 

> 	iavf_free_adminq_asq(hw);
> 
> init_adminq_exit:
>-- 
>2.43.0