CVE-2024-49907

drm/amd/display: Check null pointers before using dc->clk_mgr

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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.

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-10-21 CVE Reserved
2024-10-21 CVE Published
2024-10-24 EPSS Updated
2024-11-19 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (7)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/8d54001f8dccd56146973f23f3ab2ba037a21251	2024-10-17
https://git.kernel.org/stable/c/a545a9403e04c6e17fdc04a26a61d9feebbba106	2024-10-17
https://git.kernel.org/stable/c/a2773e0a4b79e7a6463abdffaf8cc4f24428ba18	2024-10-17
https://git.kernel.org/stable/c/9641bc4adf8446034e490ed543ae7e9833cfbdf5	2024-10-10
https://git.kernel.org/stable/c/3f7e533c10db3d0158709a99e2129ff63add6bcd	2024-10-10
https://git.kernel.org/stable/c/5ba3fbf75b243b2863a8be9e7c393e003d3b88f3	2024-10-10
https://git.kernel.org/stable/c/95d9e0803e51d5a24276b7643b244c7477daf463	2024-08-13

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.10.227 Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.227"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.15.168 Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.168"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.1.113 Search vendor "Linux" for product "Linux Kernel" and version " < 6.1.113"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.6.55 Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.55"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.10.14 Search vendor "Linux" for product "Linux Kernel" and version " < 6.10.14"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.11.3 Search vendor "Linux" for product "Linux Kernel" and version " < 6.11.3"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.12 Search vendor "Linux" for product "Linux Kernel" and version " < 6.12"		en		Affected