netdev - [PATCH net 2/4] ice: Shut down VSI with "link-down-on-close" enabled

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Wed, 27 Dec 2023 10:25:31 -0800
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	netdev@...r.kernel.org
Cc: Ngai-Mint Kwan <ngai-mint.kwan@...el.com>,
	anthony.l.nguyen@...el.com,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	Wojciech Drewek <wojciech.drewek@...el.com>,
	Pucha Himasekhar Reddy <himasekharx.reddy.pucha@...el.com>
Subject: [PATCH net 2/4] ice: Shut down VSI with "link-down-on-close" enabled

From: Ngai-Mint Kwan <ngai-mint.kwan@...el.com>

Disabling netdev with ethtool private flag "link-down-on-close" enabled
can cause NULL pointer dereference bug. Shut down VSI regardless of
"link-down-on-close" state.

Fixes: 8ac7132704f3 ("ice: Fix interface being down after reset with link-down-on-close flag on")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
Signed-off-by: Ngai-Mint Kwan <ngai-mint.kwan@...el.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@...el.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@...el.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 270d68b69c59..adfdea1e2805 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -9193,6 +9193,8 @@ int ice_stop(struct net_device *netdev)
 			else
 				netdev_err(vsi->netdev, "Failed to set physical link down, VSI %d error %d\n",
 					   vsi->vsi_num, link_err);
+
+			ice_vsi_close(vsi);
 			return -EIO;
 		}
 	}
-- 
2.41.0