[dpdk-stable] [PATCH v3] net/ice: fix representor port segmentation fault

[Wang, Haiyue]

> -----Original Message-----
> From: Yu, DapengX <dapengx.yu at intel.com>
> Sent: Tuesday, September 7, 2021 10:01
> To: Yang, Qiming <qiming.yang at intel.com>; Zhang, Qi Z <qi.z.zhang at intel.com>
> Cc: dev at dpdk.org; Wang, Haiyue <haiyue.wang at intel.com>; Yu, DapengX <dapengx.yu at intel.com>;
> stable at dpdk.org
> Subject: [PATCH v3] net/ice: fix representor port segmentation fault
> 
> From: Dapeng Yu <dapengx.yu at intel.com>
> 
> If DCF representor port is closed after DCF port is closed, there will
> be segmentation fault because representor accesses the released resource
> of DCF port.
> 
> This patch checks if the resource is present before accessing.
> 
> Fixes: 5674465a32c8 ("net/ice: add DCF VLAN handling")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Dapeng Yu <dapengx.yu at intel.com>
> ---
> V2:
>  * Remove (void) to make code clean.
> V3:
>  * Only check resource accessibility but not release it.
> ---
>  drivers/net/ice/ice_dcf_vf_representor.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 

Acked-by: Haiyue Wang <haiyue.wang at intel.com>

> --
> 2.27.0