From: Dan Carpenter <dan.carpenter@linaro.org>
To: Jesse Brandeburg <jesse.brandeburg@intel.com>,
Simon Horman <horms@kernel.org>
Cc: intel-wired-lan@lists.osuosl.org,
kernel-janitors@vger.kernel.org,
Eric Dumazet <edumazet@google.com>,
Tony Nguyen <anthony.l.nguyen@intel.com>,
Jeff Kirsher <jeffrey.t.kirsher@intel.com>,
netdev@vger.kernel.org, Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>,
"David S. Miller" <davem@davemloft.net>
Subject: [Intel-wired-lan] [PATCH net v2] ixgbe: fix crash with empty VF macvlan list
Date: Fri, 6 Oct 2023 15:53:09 +0300 [thread overview]
Message-ID: <ZSADNdIw8zFx1xw2@kadam> (raw)
The adapter->vf_mvs.l list needs to be initialized even if the list is
empty. Otherwise it will lead to crashes.
Fixes: a1cbb15c1397 ("ixgbe: Add macvlan support for VF")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
v2: Use the correct fixes tag. Thanks, Simon.
drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index a703ba975205..9cfdfa8a4355 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -28,6 +28,9 @@ static inline void ixgbe_alloc_vf_macvlans(struct ixgbe_adapter *adapter,
struct vf_macvlans *mv_list;
int num_vf_macvlans, i;
+ /* Initialize list of VF macvlans */
+ INIT_LIST_HEAD(&adapter->vf_mvs.l);
+
num_vf_macvlans = hw->mac.num_rar_entries -
(IXGBE_MAX_PF_MACVLANS + 1 + num_vfs);
if (!num_vf_macvlans)
@@ -36,8 +39,6 @@ static inline void ixgbe_alloc_vf_macvlans(struct ixgbe_adapter *adapter,
mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans),
GFP_KERNEL);
if (mv_list) {
- /* Initialize list of VF macvlans */
- INIT_LIST_HEAD(&adapter->vf_mvs.l);
for (i = 0; i < num_vf_macvlans; i++) {
mv_list[i].vf = -1;
mv_list[i].free = true;
--
2.39.2
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next reply other threads:[~2023-10-06 12:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-06 12:53 Dan Carpenter [this message]
2023-10-06 13:25 ` [Intel-wired-lan] [PATCH net v2] ixgbe: fix crash with empty VF macvlan list Simon Horman
2023-10-09 15:19 ` Jesse Brandeburg
2023-10-10 9:40 ` patchwork-bot+netdevbpf
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