From: David Yat Sin <david.yatsin@amd.com>
Date: Fri, 18 Feb 2022 22:53:43 +0000 (-0500)
Subject: drm/amdkfd: Fix for possible integer overflow
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8f7519b2f3a93f6eae76912be66188366cc47aed;p=linux.git

drm/amdkfd: Fix for possible integer overflow

Fix for possible integer overflow when doing addition.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Yat Sin <david.yatsin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
index c3f252fc337b0..6eca9509f2e38 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
@@ -786,7 +786,7 @@ int kfd_criu_restore_queue(struct kfd_process *p,
 	}
 
 	*priv_data_offset += sizeof(*q_data);
-	q_extra_data_size = q_data->ctl_stack_size + q_data->mqd_size;
+	q_extra_data_size = (uint64_t)q_data->ctl_stack_size + q_data->mqd_size;
 
 	if (*priv_data_offset + q_extra_data_size > max_priv_data_size) {
 		ret = -EINVAL;