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Date: Tue, 13 Dec 2022 10:47:35 +0200 From: Leon Romanovsky <leon@...nel.org> To: Tony Nguyen <anthony.l.nguyen@...el.com> Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com, edumazet@...gle.com, netdev@...r.kernel.org, agraf@...e.de, akihiko.odaki@...nix.com, yan@...nix.com, gregkh@...uxfoundation.org, security@...nel.org Subject: Re: [PATCH net 1/1] igb: Initialize mailbox message for VF reset On Mon, Dec 12, 2022 at 11:00:31AM -0800, Tony Nguyen wrote: > When a MAC address is not assigned to the VF, that portion of the message > sent to the VF is not set. The memory, however, is allocated from the > stack meaning that information may be leaked to the VM. Initialize the > message buffer to 0 so that no information is passed to the VM in this > case. > > Fixes: 6ddbc4cf1f4d ("igb: Indicate failure on vf reset for empty mac address") > Reported-by: Akihiko Odaki <akihiko.odaki@...nix.com> > Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com> > Reviewed-by: Akihiko Odaki <akihiko.odaki@...nix.com> > --- > drivers/net/ethernet/intel/igb/igb_main.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > Thanks, Reviewed-by: Leon Romanovsky <leonro@...dia.com>
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