iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/amdgpu/vkms: fix a possible null pointer dereference

Browse Source 
In amdgpu_vkms_conn_get_modes(), the return value of drm_cvt_mode()
is assigned to mode, which will lead to a NULL pointer dereference
on failure of drm_cvt_mode(). Add a check to avoid null pointer
dereference.

Signed-off-by: Ma Ke <make_ruc2021@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ma Ke 2023-10-13 09:53:43 +08:00 committed by Alex Deucher
parent 49c775b783
commit cd90511557
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
View File

@ -239,6 +239,8 @@ static int amdgpu_vkms_conn_get_modes(struct drm_connector *connector)
for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false, false);
if (!mode)
continue;
drm_mode_probed_add(connector, mode);
}