diff --git a/drivers/gpu/msm/kgsl_iommu.c b/drivers/gpu/msm/kgsl_iommu.c index c54f6edaf6fc..dcf166395489 100644 --- a/drivers/gpu/msm/kgsl_iommu.c +++ b/drivers/gpu/msm/kgsl_iommu.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2011-2021, The Linux Foundation. All rights reserved. - * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2022-2024, Qualcomm Innovation Center, Inc. All rights reserved. */ #include @@ -2586,18 +2586,19 @@ static bool kgsl_iommu_addr_in_range(struct kgsl_pagetable *pagetable, uint64_t gpuaddr, uint64_t size) { struct kgsl_iommu_pt *pt = pagetable->priv; + u64 end = gpuaddr + size; - if (gpuaddr == 0) + /* Make sure we don't wrap around */ + if (gpuaddr == 0 || end < gpuaddr) return false; - if (gpuaddr >= pt->va_start && (gpuaddr + size) < pt->va_end) + if (gpuaddr >= pt->va_start && end <= pt->va_end) return true; - if (gpuaddr >= pt->compat_va_start && - (gpuaddr + size) < pt->compat_va_end) + if (gpuaddr >= pt->compat_va_start && end <= pt->compat_va_end) return true; - if (gpuaddr >= pt->svm_start && (gpuaddr + size) < pt->svm_end) + if (gpuaddr >= pt->svm_start && end <= pt->svm_end) return true; return false;