The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 4ff12d82dac119b4b99b5a78b5af3bf2474c0a36 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2025072801-game-appendix-1d20@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..

Possible dependencies:

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 4ff12d82dac119b4b99b5a78b5af3bf2474c0a36 Mon Sep 17 00:00:00 2001 From: Haoxiang Li haoxiang_li2024@163.com Date: Thu, 3 Jul 2025 17:52:32 +0800 Subject: [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: c76488109616 ("ice: Implement Dynamic Device Personalization (DDP) download") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li haoxiang_li2024@163.com Reviewed-by: Michal Swiatkowski michal.swiatkowski@linux.intel.com Reviewed-by: Aleksandr Loktionov aleksandr.loktionov@intel.com Reviewed-by: Simon Horman horms@kernel.org Tested-by: Rinitha S sx.rinitha@intel.com (A Contingent worker at Intel) Signed-off-by: Tony Nguyen anthony.l.nguyen@intel.com

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)) {