VYPR
High severity7.8NVD Advisory· Published Aug 21, 2024· Updated Aug 4, 2026

CVE-2022-48887

CVE-2022-48887

Description

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.

Affected products

55

Patches

Vulnerability mechanics

References

2

News mentions

0

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