CVE-2022-50437

drm/msm/hdmi: fix memory corruption with too many bridges

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved: drm/msm/hdmi: fix memory corruption with too many bridges Add the missing sanity check on the bridge counter to avoid corrupting
data beyond the fixed-sized bridge array in case there are ever more
than eight bridges. Patchwork: https://patchwork.freedesktop.org/patch/502670/

In the Linux kernel, the following vulnerability has been resolved: drm/msm/hdmi: fix memory corruption with too many bridges Add the missing sanity check on the bridge counter to avoid corrupting data beyond the fixed-sized bridge array in case there are ever more than eight bridges. Patchwork: https://patchwork.freedesktop.org/patch/502670/

This update provides the initial livepatch for this kernel update. This update does not contain any fixes and will be updated with livepatches later.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2025-09-17 CVE Reserved
2025-10-01 CVE Published
2025-10-02 CVE Updated
2025-12-08 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (9)

URL	Tag	Source
https://git.kernel.org/stable/c/a3376e3ec81c5dd0622cbc187db76d2824d31c1c	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/a9c1a6991a9b5aa6d0f2cbc9b8c3bf6c4d094dfa	2022-11-03
https://git.kernel.org/stable/c/e8f916b84e4b028ecad6c6472eaad543cc7df806	2022-11-03
https://git.kernel.org/stable/c/3c43f3ec731c233eb84b66199ee76dbf3ec6ecae	2022-11-03
https://git.kernel.org/stable/c/ed7f1ff87a4afea1bc220d2ff00a7ce8e61f0b53	2022-11-03
https://git.kernel.org/stable/c/08c7375fa27a8ceee028868e03ffb3a0db919d44	2022-11-03
https://git.kernel.org/stable/c/b48949ab451eaf1e2c04c272c8a9a96a2b56546f	2022-11-03
https://git.kernel.org/stable/c/9efb45b45ff6254bfd1f1997a06725cb3fc998a5	2022-11-03
https://git.kernel.org/stable/c/4c1294da6aed1f16d47a417dcfe6602833c3c95c	2022-09-30

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"				>= 3.12 < 4.9.332 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.12 < 4.9.332"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.12 < 4.14.298 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.12 < 4.14.298"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.12 < 4.19.264 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.12 < 4.19.264"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.12 < 5.4.223 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.12 < 5.4.223"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.12 < 5.10.153 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.12 < 5.10.153"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.12 < 5.15.77 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.12 < 5.15.77"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.12 < 6.0.7 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.12 < 6.0.7"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.12 < 6.1 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.12 < 6.1"		en		Affected