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drm/amdgpu: Fix off by one in current_memory_partition_show()

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The >= ARRAY_SIZE() should be > ARRAY_SIZE() to prevent an out of
bounds read.

Fixes: 012be6f22c ("drm/amdgpu: Add sysfs interfaces for NPS mode")
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dan Carpenter
2024-10-10 21:35:36 +03:00
committed by Alex Deucher
parent 336568de91
commit 9f7e94af35
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
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@@ -1199,7 +1199,7 @@ static ssize_t current_memory_partition_show(
enum amdgpu_memory_partition mode;
mode = adev->gmc.gmc_funcs->query_mem_partition_mode(adev);
if ((mode > ARRAY_SIZE(nps_desc)) ||
if ((mode >= ARRAY_SIZE(nps_desc)) ||
(BIT(mode) & AMDGPU_ALL_NPS_MASK) != BIT(mode))
return sysfs_emit(buf, "UNKNOWN\n");