CVE-2024-44955

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Don't refer to dc_sink in is_dsc_need_re_compute [Why] When unplug one of monitors connected after mst hub, encounter null pointer dereference. It's due to dc_sink get released immediately in early_unregister() or detect_ctx(). When commit new state which directly referring to info stored in dc_sink will cause null pointer dereference. [how] Remove redundant checking condition. Relevant condition should already be covered by checking if dsc_aux is null or not. Also reset dsc_aux to NULL when the connector is disconnected.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/39b217193729aa45eded8de24d9245468a0c0263	Patch
https://git.kernel.org/stable/c/c7e65cab54a89f4df54110f0b44c4ade93d1a911
https://git.kernel.org/stable/c/fcf6a49d79923a234844b8efe830a61f3f0584e4	Patch

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

09 Dec 2024, 13:10

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/c7e65cab54a89f4df54110f0b44c4ade93d1a911 -

Information

Published : 2024-09-04 19:15

Updated : 2024-12-09 13:10

NVD link : CVE-2024-44955

Mitre link : CVE-2024-44955

CVE.ORG link : CVE-2024-44955

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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