Re: [PATCH net 3/3] net: hns3: add VLAN id validation before using

[Simon Horman]

On Tue, Dec 09, 2025 at 09:38:25PM +0800, Jijie Shao wrote:
> From: Jian Shen <shenjian15@xxxxxxxxxx>
> 
> Currently, the VLAN id may be used without validation when
> receive a VLAN configuration mailbox from VF. It may cause
> out-of-bounds memory access once the VLAN id is bigger than
> 4095.
> 
> Fixes: fe4144d47eef ("net: hns3: sync VLAN filter entries when kill VLAN ID failed")
> Signed-off-by: Jian Shen <shenjian15@xxxxxxxxxx>
> Signed-off-by: Jijie Shao <shaojijie@xxxxxxxxxx>

Hi Jijie,

Can you clarify that the (only) oob access is to vlan_del_fail_bmap?

If so, I agree with this change and that the problem was introduced in
the cited commit. But I think it would be worth mentioning vlan_del_fail_bmap
in the commit message.


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