Description (CNA)
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)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c7ddc0a800bc9f681a18c3bdd9f06b61adfabc11 before f610c46771ef1047e46d61807aa7c69cd29e63d8; affected c7ddc0a800bc9f681a18c3bdd9f06b61adfabc11 before e7cadd5d3a8ffe334d0229ba9eda4290138d56e7; affected c7ddc0a800bc9f681a18c3bdd9f06b61adfabc11 before d0e94f4807ff0df66cf447d6b4bbb8ac830e99c3; affected c7ddc0a800bc9f681a18c3bdd9f06b61adfabc11 before f6aed043ee5d75b3d1bfc452b1a9584b63c8f76b |
| Linux / Linux | affected 6.6; unaffected 0 before 6.6; unaffected 6.6.23 through 6.6.*; unaffected 6.7.11 through 6.7.*; unaffected 6.8.2 through 6.8.*; unaffected 6.9 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/f610c46771ef1047e46d61807aa7c69cd29e63d8
- https://git.kernel.org/stable/c/e7cadd5d3a8ffe334d0229ba9eda4290138d56e7
- https://git.kernel.org/stable/c/d0e94f4807ff0df66cf447d6b4bbb8ac830e99c3
- https://git.kernel.org/stable/c/f6aed043ee5d75b3d1bfc452b1a9584b63c8f76b
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.