* [PATCH] qlcnic: fix a memory leak in __qlcnic_pci_sriov_enable()
@ 2025-03-05 10:18 Haoxiang Li
2025-03-06 10:36 ` Paolo Abeni
0 siblings, 1 reply; 2+ messages in thread
From: Haoxiang Li @ 2025-03-05 10:18 UTC (permalink / raw)
To: shshaikh, manishc, GR-Linux-NIC-Dev, andrew+netdev, davem,
edumazet, kuba, pabeni, jiasheng
Cc: netdev, linux-kernel, Haoxiang Li, stable
Add qlcnic_sriov_free_vlans() to free the memory allocated by
qlcnic_sriov_alloc_vlans() if qlcnic_sriov_alloc_vlans() fails.
Fixes: 60ec7fcfe768 ("qlcnic: potential dereference null pointer of rx_queue->page_ring")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
---
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
index 8dd7aa08ecfb..b8a9e0e2907e 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
@@ -598,8 +598,10 @@ static int __qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter,
goto del_flr_queue;
err = qlcnic_sriov_alloc_vlans(adapter);
- if (err)
+ if (err) {
+ qlcnic_sriov_free_vlans(adapter);
goto del_flr_queue;
+ }
return err;
--
2.25.1
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] qlcnic: fix a memory leak in __qlcnic_pci_sriov_enable()
2025-03-05 10:18 [PATCH] qlcnic: fix a memory leak in __qlcnic_pci_sriov_enable() Haoxiang Li
@ 2025-03-06 10:36 ` Paolo Abeni
0 siblings, 0 replies; 2+ messages in thread
From: Paolo Abeni @ 2025-03-06 10:36 UTC (permalink / raw)
To: Haoxiang Li, shshaikh, manishc, GR-Linux-NIC-Dev, andrew+netdev,
davem, edumazet, kuba, jiasheng
Cc: netdev, linux-kernel, stable
On 3/5/25 11:18 AM, Haoxiang Li wrote:
> Add qlcnic_sriov_free_vlans() to free the memory allocated by
> qlcnic_sriov_alloc_vlans() if qlcnic_sriov_alloc_vlans() fails.
>
> Fixes: 60ec7fcfe768 ("qlcnic: potential dereference null pointer of rx_queue->page_ring")
> Cc: stable@vger.kernel.org
> Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
I think we are better off addressing the problem in
qlcnic_sriov_alloc_vlans(), so that eventual future callers of such
fuction will not need special handling.
Thanks,
Paolo
^ permalink raw reply [flat|nested] 2+ messages in thread
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2025-03-05 10:18 [PATCH] qlcnic: fix a memory leak in __qlcnic_pci_sriov_enable() Haoxiang Li
2025-03-06 10:36 ` Paolo Abeni
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