vulnerability
Ubuntu: (CVE-2022-48887): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Aug 21, 2024 | Jun 26, 2025 | Jul 1, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Aug 21, 2024
Added
Jun 26, 2025
Modified
Jul 1, 2025
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.
Solution
no-fix-ubuntu-package
References
- CVE-2022-48887
- https://attackerkb.com/topics/CVE-2022-48887
- URL-https://git.kernel.org/linus/a309c7194e8a2f8bd4539b9449917913f6c2cd50
- URL-https://git.kernel.org/stable/c/7ac9578e45b20e3f3c0c8eb71f5417a499a7226a
- URL-https://git.kernel.org/stable/c/a309c7194e8a2f8bd4539b9449917913f6c2cd50
- URL-https://www.cve.org/CVERecord?id=CVE-2022-48887
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