Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Add null pointer check for get_first_active_display()
The function mod_hdcp_hdcp1_enable_encryption() calls the function get_first_active_display(), but does not check its return value. The return value is a null pointer if the display list is empty. This will lead to a null pointer dereference in mod_hdcp_hdcp2_enable_encryption().
Add a null pointer check for get_first_active_display() and return MOD_HDCP_STATUS_DISPLAY_NOT_FOUND if the function return null.
Details
- Affected product:
- AlmaLinux 9.2 ESU , Amazon Linux 2 ELS , TuxCare 9.6 ESU
- Affected packages:
- kernel @ 5.10.0 (+2 more)
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| AlmaLinux 9.6 ESU | Planned | — |
| Debian 12 | Released |
28 kernels
|
| Oracle Linux 8 UEK 7 | Will Not Fix |
70 kernels
|
| Oracle Linux 9 UEK 7 | Will Not Fix |
70 kernels
|
| Proxmox VE 7 5.15 | Released |
47 kernels
|
| Ubuntu 20.04 HWE AWS | Released |
57 kernels
|
| Ubuntu 20.04 HWE Azure | Released |
40 kernels
|
| Ubuntu 22.04 | Released |
81 kernels
|
| Ubuntu 22.04 AWS | Released |
72 kernels
|
| Ubuntu 22.04 Azure | Released |
66 kernels
|
| Ubuntu 24.04 | Released |
37 kernels
|