Published Aug 21, 2024Sources checked Nov 11, 2026
5.5MEDIUMCVSS out of 10
What this means
Review the available evidence
CVE-2022-48887 and is rated Medium severity with a CVSS score of 5.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
CISA KEVNot listedBased on the latest collected catalog
EPSS0.2%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is 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.