diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2024-10-23 16:52:08 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-11-05 10:54:11 -0500 |
| commit | 4d75b9468021c73108b4439794d69e892b1d24e3 (patch) | |
| tree | 8b2524df7f4b3213e15943d9c5b9bcac8156c635 /drivers | |
| parent | f790a2c494c4ef587eeeb9fca20124de76a1646f (diff) | |
drm/amdgpu: add missing size check in amdgpu_debugfs_gprwave_read()
Avoid a possible buffer overflow if size is larger than 4K.
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit f5d873f5825b40d886d03bd2aede91d4cf002434)
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c index eac92130c0be..9da4414de617 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c @@ -402,7 +402,7 @@ static ssize_t amdgpu_debugfs_gprwave_read(struct file *f, char __user *buf, siz int r; uint32_t *data, x; - if (size & 0x3 || *pos & 0x3) + if (size > 4096 || size & 0x3 || *pos & 0x3) return -EINVAL; r = pm_runtime_get_sync(adev_to_drm(adev)->dev); |