PT-2024-9248 · Linux+5 · Linux Kernel+5
Mathias Krause
·
Published
2022-05-10
·
Updated
2026-05-26
·
CVE-2022-48771
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
The issue is related to the drm/vmwgfx component of the Linux kernel, where a failing usercopy of the
fence rep object leads to a stale entry in the file descriptor table. This allows userland to refer to a dangling 'file' object through a still valid file descriptor, enabling various use-after-free exploitation scenarios. The problem arises because put unused fd() does not release the file descriptor, and the fix involves deferring the call to fd install() until after the usercopy has succeeded.Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Centos
Linux Kernel
Red Hat
Red Os
Suse