5.4-stable review patch. If anyone has any objections, please let me know.
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From: Haoxiang Li haoxiang_li2024@163.com
[ Upstream commit 4ff12d82dac119b4b99b5a78b5af3bf2474c0a36 ]
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 [ applied the patch to ice_flex_pipe.c instead of ice_ddp.c ] Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/intel/ice/ice_flex_pipe.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c +++ b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c @@ -753,6 +753,8 @@ enum ice_status ice_copy_and_init_pkg(st return ICE_ERR_PARAM;
buf_copy = devm_kmemdup(ice_hw_to_dev(hw), buf, len, GFP_KERNEL); + if (!buf_copy) + return ICE_ERR_NO_MEMORY;
status = ice_init_pkg(hw, buf_copy, len); if (status) {