-----Original Message----- From: Intel-wired-lan intel-wired-lan-bounces@osuosl.org On Behalf Of Haoxiang Li Sent: Saturday, May 24, 2025 9:27 AM To: Nguyen, Anthony L anthony.l.nguyen@intel.com; Kitszel, Przemyslaw przemyslaw.kitszel@intel.com; andrew+netdev@lunn.ch; davem@davemloft.net; edumazet@google.com; kuba@kernel.org; pabeni@redhat.com; Temerkhanov, Sergey sergey.temerkhanov@intel.com Cc: intel-wired-lan@lists.osuosl.org; netdev@vger.kernel.org; linux- kernel@vger.kernel.org; Haoxiang Li haoxiang_li2024@163.com; stable@vger.kernel.org Subject: [Intel-wired-lan] [PATCH] ice: Fix a null pointer dereference in ice_copy_and_init_pkg()
Add check for the return value of devm_kmemdup() to prevent potential null pointer dereference.
Fixes: 2ffd87d38d6b ("ice: Move support DDP code out of ice_flex_pipe.c") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li haoxiang_li2024@163.com
Reviewed-by: Aleksandr Loktionov aleksandr.loktionov@intel.com
drivers/net/ethernet/intel/ice/ice_ddp.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/intel/ice/ice_ddp.c b/drivers/net/ethernet/intel/ice/ice_ddp.c index 59323c019544..351824dc3c62 100644 --- a/drivers/net/ethernet/intel/ice/ice_ddp.c +++ b/drivers/net/ethernet/intel/ice/ice_ddp.c @@ -2301,6 +2301,8 @@ enum ice_ddp_state ice_copy_and_init_pkg(struct ice_hw *hw, const u8 *buf, return ICE_DDP_PKG_ERR;
buf_copy = devm_kmemdup(ice_hw_to_dev(hw), buf, len, GFP_KERNEL);
if (!buf_copy)
return ICE_DDP_PKG_ERR;state = ice_init_pkg(hw, buf_copy, len); if (!ice_is_init_pkg_successful(state)) {
-- 2.25.1