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drm/amdkfd: Fix NULL Pointer Dereference in KFD queue

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Through KFD IOCTL Fuzzing we encountered a NULL pointer derefrence
when calling kfd_queue_acquire_buffers.

Fixes: 629568d25f ("drm/amdkfd: Validate queue cwsr area and eop buffer size")
Signed-off-by: Andrew Martin <Andrew.Martin@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Andrew Martin <Andrew.Martin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 049e5bf3c8)
Cc: stable@vger.kernel.org
This commit is contained in:
Andrew Martin 2025-02-28 11:26:48 -05:00 committed by Alex Deucher
parent 374c9faac5
commit fd617ea3b7
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/amdkfd/kfd_queue.c
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@ -266,8 +266,8 @@ int kfd_queue_acquire_buffers(struct kfd_process_device *pdd, struct queue_prope
/* EOP buffer is not required for all ASICs */
if (properties->eop_ring_buffer_address) {
if (properties->eop_ring_buffer_size != topo_dev->node_props.eop_buffer_size) {
pr_debug("queue eop bo size 0x%lx not equal to node eop buf size 0x%x\n",
properties->eop_buf_bo->tbo.base.size,
pr_debug("queue eop bo size 0x%x not equal to node eop buf size 0x%x\n",
properties->eop_ring_buffer_size,
topo_dev->node_props.eop_buffer_size);
err = -EINVAL;
goto out_err_unreserve;