diff options
| -rw-r--r-- | drivers/gpu/nvgpu/gk20a/mm_gk20a.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c index 2a5bd760f82d..59dc3656f486 100644 --- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c @@ -1330,6 +1330,12 @@ u64 gk20a_vm_map(struct vm_gk20a *vm, bfr.pgsz_idx = -1; mapping_size = mapping_size ? mapping_size : bfr.size; + if ((mapping_size > bfr.size) || + (buffer_offset > (bfr.size - mapping_size))) { + err = -EINVAL; + goto clean_up; + } + /* If FIX_OFFSET is set, pgsz is determined. Otherwise, select * page size according to memory alignment */ if (flags & NVHOST_AS_MAP_BUFFER_FLAGS_FIXED_OFFSET) { |