In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Add 'replay' NULL check in 'edp_set_replay_allow_active()'
In the first if statement, we're checking if 'replay' is NULL. But in
the second if statement, we're not checking if 'replay' is NULL again
before calling replay->funcs->replay_set_power_opt().
if (replay == NULL && force_static)
return false;
...
if (link->replay_settings.replay_feature_enabled &&
replay->funcs->replay_set_power_opt) {
replay->funcs->replay_set_power_opt(replay, *power_opts, panel_inst);
link->replay_settings.replay_power_opt_active = *power_opts;
}
If 'replay' is NULL, this will cause a null pointer dereference.
Fixes the below found by smatch:
drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_edp_panel_control.c:895 edp_set_replay_allow_active() error: we previously assumed 'replay' could be null (see line 887)
Metrics
Affected Vendors & Products
References
History
Tue, 08 Apr 2025 19:00:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Linux
Linux linux Kernel |
|
Weaknesses | CWE-476 | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
Vendors & Products |
Linux
Linux linux Kernel |
Thu, 07 Nov 2024 17:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
cvssV3_1
|
cvssV3_1
|

Status: PUBLISHED
Assigner: Linux
Published: 2024-05-01T12:54:00.645Z
Updated: 2025-05-04T09:02:53.763Z
Reserved: 2024-02-19T14:20:24.212Z
Link: CVE-2024-27040

Updated: 2024-08-02T00:21:05.887Z

Status : Analyzed
Published: 2024-05-01T13:15:49.600
Modified: 2025-04-08T18:39:21.683
Link: CVE-2024-27040
