[Intel-wired-lan] [PATCH iwl-net v2 1/2] iavf: fix ASQ command buffer leak on init failure

[Jagielski, Jedrzej]

From: xuanqiang.luo at linux.dev <xuanqiang.luo at linux.dev> 
Sent: Wednesday, July 15, 2026 10:26 AM

>From: Xuanqiang Luo <luoxuanqiang at kylinos.cn>
>
>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: stable at vger.kernel.org
>Signed-off-by: Xuanqiang Luo <luoxuanqiang at kylinos.cn>
>---
> 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..40f76f9507f4b 100644
>--- a/drivers/net/ethernet/intel/iavf/iavf_adminq.c
>+++ b/drivers/net/ethernet/intel/iavf/iavf_adminq.c
>@@ -60,6 +60,7 @@ static enum iavf_status iavf_alloc_adminq_arq_ring(struct iavf_hw *hw)
>  **/
> static void iavf_free_adminq_asq(struct iavf_hw *hw)
> {
>+	iavf_free_virt_mem(hw, &hw->aq.asq.cmd_buf);
> 	iavf_free_dma_mem(hw, &hw->aq.asq.desc_buf);
> }
> 
>-- 
>2.43.0

Looks fine, thanks!

Reviewed-by: Jedrzej Jagielski <jedrzej.jagielski at intel.com>

One note for the future - please be aware that there is minimal time period to be
waited before resubmitting new patch revision, which is at least 24h for netdev/IWL
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