CVE-2024-49907
Published: October 23, 2024Last modified: October 23, 2024
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check null pointers before using dc->clk_mgr [WHY & HOW] dc->clk_mgr is null checked previously in the same function, indicating it might be null. Passing "dc" to "dc->hwss.apply_idle_power_optimizations", which dereferences null "dc->clk_mgr". (The function pointer resolves to "dcn35_apply_idle_power_optimizations".) This fixes 1 FORWARD_NULL issue reported by Coverity.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.114-r0) |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/3f7e533c10db3d0158709a99e2129ff63add6bcd
- https://git.kernel.org/stable/c/5ba3fbf75b243b2863a8be9e7c393e003d3b88f3
- https://git.kernel.org/stable/c/8d54001f8dccd56146973f23f3ab2ba037a21251
- https://git.kernel.org/stable/c/95d9e0803e51d5a24276b7643b244c7477daf463
- https://git.kernel.org/stable/c/9641bc4adf8446034e490ed543ae7e9833cfbdf5
- https://git.kernel.org/stable/c/a2773e0a4b79e7a6463abdffaf8cc4f24428ba18
- https://git.kernel.org/stable/c/a545a9403e04c6e17fdc04a26a61d9feebbba106