[PATCH v2] drm/amdgpu/mes: fix use-after-free issue

[Lazar, Lijo]

On 4/22/2024 3:09 PM, Jack Xiao wrote:
> Delete fence fallback timer to fix the ramdom
> use-after-free issue.
> 
> v2: move to amdgpu_mes.c
> 
> Signed-off-by: Jack Xiao <Jack.Xiao at amd.com>

Acked-by: Lijo Lazar <lijo.lazar at amd.com>

Thanks,
Lijo

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
> index 78e4f88f5134..226751ea084b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
> @@ -1128,6 +1128,7 @@ void amdgpu_mes_remove_ring(struct amdgpu_device *adev,
>  		return;
>  
>  	amdgpu_mes_remove_hw_queue(adev, ring->hw_queue_id);
> +	del_timer_sync(&ring->fence_drv.fallback_timer);
>  	amdgpu_ring_fini(ring);
>  	kfree(ring);
>  }