CVE-2022-50142

intel_th: msu: Fix vmalloced buffers

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

MITRE
TN

In the Linux kernel, the following vulnerability has been resolved: intel_th: msu: Fix vmalloced buffers After commit f5ff79fddf0e ("dma-mapping: remove CONFIG_DMA_REMAP") there's
a chance of DMA buffer getting allocated via vmalloc(), which messes up
the mmapping code: > RIP: msc_mmap_fault [intel_th_msu]
> Call Trace:
> <TASK>
> __do_fault
> do_fault
... Fix this by accounting for vmalloc possibility.

In the Linux kernel, the following vulnerability has been resolved: intel_th: msu: Fix vmalloced buffers After commit f5ff79fddf0e ("dma-mapping: remove CONFIG_DMA_REMAP") there's a chance of DMA buffer getting allocated via vmalloc(), which messes up the mmapping code: > RIP: msc_mmap_fault [intel_th_msu] > Call Trace: > <TASK> > __do_fault > do_fault ... Fix this by accounting for vmalloc possibility.

*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

Local

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

2025-06-18 CVE Reserved
2025-06-18 CVE Published
2025-06-18 CVE Updated
2025-06-24 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (7)

URL	Tag	Source
https://git.kernel.org/stable/c/ba39bd8306057fb343dfb75d93a76d824b625236	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/b5d924cb4c7b952eaa61622f14427723a78137a3	2022-08-25
https://git.kernel.org/stable/c/6ae2881c1d1fa0e33f4763b7c786f8ef05a9c828	2022-08-21
https://git.kernel.org/stable/c/566887bad7ff2297d6b3f9659c702ba075f3d62d	2022-08-17
https://git.kernel.org/stable/c/0ed72c6bc632cbf8d979ac60f982ff84b7bb610a	2022-08-17
https://git.kernel.org/stable/c/4914c50670b6a531e2cb17cd984cc565b4681312	2022-08-17
https://git.kernel.org/stable/c/ac12ad3ccf6d386e64a9d6a890595a2509d24edd	2022-07-08

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"				>= 5.2 < 5.4.211 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.4.211"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.2 < 5.10.137 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.10.137"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.2 < 5.15.61 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.15.61"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.2 < 5.18.18 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.18.18"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.2 < 5.19.2 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.19.2"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.2 < 6.0 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 6.0"		en		Affected