diff options
| author | Thelford Williams <tdwilliamsiv@gmail.com> | 2021-10-13 23:04:13 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-10-20 22:13:50 +0300 |
| commit | 5afa7898ab7a0ec9c28556a91df714bf3c2f725e (patch) | |
| tree | 0f9531afedfe899b74933724d486314b10988eea /drivers/gpu/drm/amd/display/amdgpu_dm | |
| parent | 519d81956ee277b4419c723adfb154603c2565ba (diff) | |
| download | linux-5afa7898ab7a0ec9c28556a91df714bf3c2f725e.tar.xz | |
drm/amdgpu: fix out of bounds write
Size can be any value and is user controlled resulting in overwriting the
40 byte array wr_buf with an arbitrary length of data from buf.
Signed-off-by: Thelford Williams <tdwilliamsiv@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c index 87daa78a32b8..17f2756a64dc 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -263,7 +263,7 @@ static ssize_t dp_link_settings_write(struct file *f, const char __user *buf, if (!wr_buf) return -ENOSPC; - if (parse_write_buffer_into_params(wr_buf, size, + if (parse_write_buffer_into_params(wr_buf, wr_buf_size, (long *)param, buf, max_param_num, ¶m_nums)) { |