CVE-2022-48887

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Remove rcu locks from user resources User resource lookups used rcu to avoid two extra atomics. Unfortunately the rcu paths were buggy and it was easy to make the driver crash by submitting command buffers from two different threads. Because the lookups never show up in performance profiles replace them with a regular spin lock which fixes the races in accesses to those shared resources. Fixes kernel oops'es in IGT's vmwgfx execution_buffer stress test and seen crashes with apps using shared resources.

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/7ac9578e45b20e3f3c0c8eb71f5417a499a7226a	Patch
https://git.kernel.org/stable/c/a309c7194e8a2f8bd4539b9449917913f6c2cd50	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.2:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.2:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.2:rc3::::::

History

06 Sep 2024, 14:55

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
First Time		Linux Linux linux Kernel
CWE		NVD-CWE-noinfo
CPE		cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:6.2:rc1:::::: cpe:2.3:o:linux:linux_kernel:6.2:rc3:::::: cpe:2.3:o:linux:linux_kernel:6.2:rc2::::::
References	~~() https://git.kernel.org/stable/c/7ac9578e45b20e3f3c0c8eb71f5417a499a7226a -~~	() https://git.kernel.org/stable/c/7ac9578e45b20e3f3c0c8eb71f5417a499a7226a - Patch
References	~~() https://git.kernel.org/stable/c/a309c7194e8a2f8bd4539b9449917913f6c2cd50 -~~	() https://git.kernel.org/stable/c/a309c7194e8a2f8bd4539b9449917913f6c2cd50 - Patch

21 Aug 2024, 12:30

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-08-21 07:15

Updated : 2024-09-06 14:55

NVD link : CVE-2022-48887

Mitre link : CVE-2022-48887

CVE.ORG link : CVE-2022-48887

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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